The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.
An Ordered List of divisions of time
Sub-divisions within the Hadean
Sub-divisions within the Neoproterozoic III Period [Obsolete age term]
Sub-divisions within the Palaeoarchaean Era
Sub-divisions within the Ectasian Period
Sub-divisions within the Cryogenian Period
Sub-divisions within the Ediacaran Period
Sub-divisions within the Eoarchaean Era
Sub-divisions within the Rhyacian Period
Sub-divisions within the Stenian Period
Sub-divisions within the Palaeoproterozoic Era
http://data.bgs.ac.uk/id/Geochronology/Division/AQ http://data.bgs.ac.uk/id/Geochronology/Division/AO http://data.bgs.ac.uk/id/Geochronology/Division/AH http://data.bgs.ac.uk/id/Geochronology/Division/AS
Sub-divisions within the Mesoarchaean Era
Sub-divisions within the Neoarchaean Era
Sub-divisions within the Orosirian Period
Sub-divisions within the Proterozoic Eon
http://data.bgs.ac.uk/id/Geochronology/Division/AZ http://data.bgs.ac.uk/id/Geochronology/Division/AX http://data.bgs.ac.uk/id/Geochronology/Division/AL
Sub-divisions within the Stratherian Period
Sub-divisions within the Archaean Eon
http://data.bgs.ac.uk/id/Geochronology/Division/AN http://data.bgs.ac.uk/id/Geochronology/Division/AM http://data.bgs.ac.uk/id/Geochronology/Division/AA http://data.bgs.ac.uk/id/Geochronology/Division/AE
Sub-divisions within the Siderian Period
Sub-divisions within the Tonian Period
Sub-divisions within the Mesoproterozoic Era
http://data.bgs.ac.uk/id/Geochronology/Division/AI http://data.bgs.ac.uk/id/Geochronology/Division/AB http://data.bgs.ac.uk/id/Geochronology/Division/AY
Sub-divisions within the Calymmian Period
Sub-divisions within the Neoproterozoic Era
http://data.bgs.ac.uk/id/Geochronology/Division/AD http://data.bgs.ac.uk/id/Geochronology/Division/AC http://data.bgs.ac.uk/id/Geochronology/Division/AT
Sub-divisions within the Bavelian Age
Sub-divisions within the Cromerian Complex Age
Sub-divisions within the Weichselian Age
Sub-divisions within the Eburonian Age
Sub-divisions within the Holsteinian Age
Sub-divisions within the Eemian Age
Sub-divisions within the Elsterian Age
Sub-divisions within the Menapian Age
Sub-divisions within the Praetiglian Age
Sub-divisions within the Reuverian Age
Sub-divisions within the Reuverian C Sub-age
Sub-divisions within the Saalian Age
Sub-divisions within the Tiglian Age
http://data.bgs.ac.uk/id/Geochronology/Division/BTC http://data.bgs.ac.uk/id/Geochronology/Division/BTB http://data.bgs.ac.uk/id/Geochronology/Division/BTA
Sub-divisions within the Tiglian A Sub-age
Sub-divisions within the Tiglian B Sub-age
Sub-divisions within the Tiglian C Sub-age
Sub-divisions within the Waalian Age
Sub-divisions within the Carboniferous Period
http://data.bgs.ac.uk/id/Geochronology/Division/CPE http://data.bgs.ac.uk/id/Geochronology/Division/CMI
Sub-divisions within the Langsettian Sub-age
Sub-divisions within the Westphalian A Sub-age
Sub-divisions within the Duckmantian Sub-age
Sub-divisions within the Westphalian B Sub-age
Sub-divisions within the Bashkirian Age
Sub-divisions within the Bolsovian Sub-age
Sub-divisions within the Westphalian C Sub-age
Sub-divisions within the Westphalian D Sub-age
Sub-divisions within the Pendleian Sub-age
Sub-divisions within the Courceyan Age
Sub-divisions within the Arnsbergian Sub-age
Sub-divisions within the Gzhelian Age
Sub-divisions within the Chokierian Sub-age
Sub-divisions within the Chadian Age
Sub-divisions within the Arundian Age
Sub-divisions within the Kinderscoutian Sub-age
Sub-divisions within the Kasimovian Age
Sub-divisions within the Dinantian Sub-period [Obsolete age term]
http://data.bgs.ac.uk/id/Geochronology/Division/CX http://data.bgs.ac.uk/id/Geochronology/Division/CR http://data.bgs.ac.uk/id/Geochronology/Division/CQ http://data.bgs.ac.uk/id/Geochronology/Division/CJ http://data.bgs.ac.uk/id/Geochronology/Division/CI http://data.bgs.ac.uk/id/Geochronology/Division/CF
Sub-divisions within the Mississippian Sub-period
http://data.bgs.ac.uk/id/Geochronology/Division/CMIL http://data.bgs.ac.uk/id/Geochronology/Division/CMIM http://data.bgs.ac.uk/id/Geochronology/Division/CMIE
Sub-divisions within the Early Mississippian Epoch
Sub-divisions within the Late Mississippian Epoch
Sub-divisions within the Mid Mississippian Epoch
Sub-divisions within the Moscovian Age
Sub-divisions within the Namurian Age
http://data.bgs.ac.uk/id/Geochronology/Division/CY http://data.bgs.ac.uk/id/Geochronology/Division/CZ http://data.bgs.ac.uk/id/Geochronology/Division/CK http://data.bgs.ac.uk/id/Geochronology/Division/CO http://data.bgs.ac.uk/id/Geochronology/Division/CH http://data.bgs.ac.uk/id/Geochronology/Division/CG http://data.bgs.ac.uk/id/Geochronology/Division/CE
Sub-divisions within the Alportian Sub-age
Sub-divisions within the Pennsylvanian Sub-period
http://data.bgs.ac.uk/id/Geochronology/Division/CPEL http://data.bgs.ac.uk/id/Geochronology/Division/CPEM http://data.bgs.ac.uk/id/Geochronology/Division/CPEE
Sub-divisions within the Early Pennsylvanian Epoch
Sub-divisions within the Late Pennsylvanian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/CGZ http://data.bgs.ac.uk/id/Geochronology/Division/CKS
Sub-divisions within the Mid Pennsylvanian Epoch
Sub-divisions within the Holkerian Age
Sub-divisions within the Asbian Age
Sub-divisions within the Stephanian Age
Sub-divisions within the Serpukhovian Age
Sub-divisions within the Tournaisian Age
Sub-divisions within the Silesian Sub-period [Obsolete age term]
http://data.bgs.ac.uk/id/Geochronology/Division/CS http://data.bgs.ac.uk/id/Geochronology/Division/CW http://data.bgs.ac.uk/id/Geochronology/Division/CN
Sub-divisions within the Visean Age
Sub-divisions within the Westphalian Age
http://data.bgs.ac.uk/id/Geochronology/Division/CD http://data.bgs.ac.uk/id/Geochronology/Division/CC http://data.bgs.ac.uk/id/Geochronology/Division/CB http://data.bgs.ac.uk/id/Geochronology/Division/CA
Sub-divisions within the Brigantian Age
Sub-divisions within the Yeadonian Sub-age
Sub-divisions within the Marsdenian Sub-age
Sub-divisions within the Devonian Period
http://data.bgs.ac.uk/id/Geochronology/Division/DU http://data.bgs.ac.uk/id/Geochronology/Division/DM http://data.bgs.ac.uk/id/Geochronology/Division/DL
Sub-divisions within the Famennian Age
Sub-divisions within the Emsian Age
Sub-divisions within the Eifelian Age
Sub-divisions within the Early Devonian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/DE http://data.bgs.ac.uk/id/Geochronology/Division/DP http://data.bgs.ac.uk/id/Geochronology/Division/DO
Sub-divisions within the Mid Devonian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/DV http://data.bgs.ac.uk/id/Geochronology/Division/DI
Sub-divisions within the Lochkovian Age
Sub-divisions within the Pragian Age
Sub-divisions within the Frasnian Age
Sub-divisions within the Late Devonian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/DA http://data.bgs.ac.uk/id/Geochronology/Division/DR
Sub-divisions within the Givetian Age
Sub-divisions within the Cambrian Period
http://data.bgs.ac.uk/id/Geochronology/Division/EF http://data.bgs.ac.uk/id/Geochronology/Division/EM http://data.bgs.ac.uk/id/Geochronology/Division/E3 http://data.bgs.ac.uk/id/Geochronology/Division/ED http://data.bgs.ac.uk/id/Geochronology/Division/EC http://data.bgs.ac.uk/id/Geochronology/Division/E2 http://data.bgs.ac.uk/id/Geochronology/Division/EN
Sub-divisions within the Cambrian Stage 2
Sub-divisions within the Cambrian Stage 3
Sub-divisions within the Cambrian Stage 4
Sub-divisions within the Cambrian Stage 5
Sub-divisions within the Paibian Age
Sub-divisions within the Cambrian Stage 9
Sub-divisions within the Cambrian Stage 10
Sub-divisions within the Cambrian Series 2
http://data.bgs.ac.uk/id/Geochronology/Division/E04 http://data.bgs.ac.uk/id/Geochronology/Division/E03
Sub-divisions within the Cambrian Series 3
http://data.bgs.ac.uk/id/Geochronology/Division/EGZ http://data.bgs.ac.uk/id/Geochronology/Division/EDM http://data.bgs.ac.uk/id/Geochronology/Division/E05
Sub-divisions within the Comley Epoch
Sub-divisions within the St David's Epoch
Sub-divisions within the Drumian Age
Sub-divisions within the Furongian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/E10 http://data.bgs.ac.uk/id/Geochronology/Division/E09 http://data.bgs.ac.uk/id/Geochronology/Division/E08
Sub-divisions within the Fortunian Age
Sub-divisions within the Guzhangian Age
Sub-divisions within the Merioneth Epoch
Sub-divisions within the Terreneuvian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/E02 http://data.bgs.ac.uk/id/Geochronology/Division/EFT
Sub-divisions within the Tremadoc Epoch [Obsolete age code]
Sub-divisions within the Phanerozoic Eon
http://data.bgs.ac.uk/id/Geochronology/Division/IZ http://data.bgs.ac.uk/id/Geochronology/Division/MZ http://data.bgs.ac.uk/id/Geochronology/Division/RZ
Sub-divisions within the Palaeogene Period
http://data.bgs.ac.uk/id/Geochronology/Division/GO http://data.bgs.ac.uk/id/Geochronology/Division/GE http://data.bgs.ac.uk/id/Geochronology/Division/GP
Sub-divisions within the Bartonian Age
Sub-divisions within the Chattian Age
Sub-divisions within the Danian Age
Sub-divisions within the Eocene Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/GEL http://data.bgs.ac.uk/id/Geochronology/Division/GEM http://data.bgs.ac.uk/id/Geochronology/Division/GEE
Sub-divisions within the Early Eocene Sub-epoch
Sub-divisions within the Late Eocene Sub-epoch
Sub-divisions within the Mid Eocene Sub-epoch
http://data.bgs.ac.uk/id/Geochronology/Division/GB http://data.bgs.ac.uk/id/Geochronology/Division/GL
Sub-divisions within the Priabonian Age
Sub-divisions within the Lutetian Age
Sub-divisions within the Oligocene Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/GOL http://data.bgs.ac.uk/id/Geochronology/Division/GOE
Sub-divisions within the Early Oligocene Sub-epoch
Sub-divisions within the Late Oligocene Sub-epoch
Sub-divisions within the Paleocene Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/GPL http://data.bgs.ac.uk/id/Geochronology/Division/GPM http://data.bgs.ac.uk/id/Geochronology/Division/GPE
Sub-divisions within the Early Paleocene Sub-epoch
Sub-divisions within the Late Paleocene Sub-epoch
Sub-divisions within the Mid Paleocene Sub-epoch
Sub-divisions within the Rupelian Age
Sub-divisions within the Selandian Age
Sub-divisions within the Thanetian Age
Sub-divisions within the Ypresian Age
Sub-divisions within the Cenozoic Era
http://data.bgs.ac.uk/id/Geochronology/Division/Q http://data.bgs.ac.uk/id/Geochronology/Division/IZT
Sub-divisions within the Tertiary Sub-era
http://data.bgs.ac.uk/id/Geochronology/Division/N http://data.bgs.ac.uk/id/Geochronology/Division/G
Sub-divisions within the Jurassic Period
http://data.bgs.ac.uk/id/Geochronology/Division/JU http://data.bgs.ac.uk/id/Geochronology/Division/JM http://data.bgs.ac.uk/id/Geochronology/Division/JL
Sub-divisions within the Aalenian Age
Sub-divisions within the Bajocian Age
Sub-divisions within the Callovian Age
Sub-divisions within the Kimmeridgian Age
Sub-divisions within the Pliensbachian Age
Sub-divisions within the Hettangian Age
Sub-divisions within the Tithonian Age
Sub-divisions within the Early Jurassic Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/JT http://data.bgs.ac.uk/id/Geochronology/Division/JE http://data.bgs.ac.uk/id/Geochronology/Division/JS http://data.bgs.ac.uk/id/Geochronology/Division/JH
Sub-divisions within the Mid Jurassic Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/JC http://data.bgs.ac.uk/id/Geochronology/Division/JN http://data.bgs.ac.uk/id/Geochronology/Division/JB http://data.bgs.ac.uk/id/Geochronology/Division/JA
Sub-divisions within the Bathonian Age
Sub-divisions within the Oxfordian Age
Sub-divisions within the Portlandian Age [Obsolete age term]
Sub-divisions within the Sinemurian Age
Sub-divisions within the Toarcian Age
Sub-divisions within the Late Jurassic Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/JI http://data.bgs.ac.uk/id/Geochronology/Division/JD http://data.bgs.ac.uk/id/Geochronology/Division/JO
Sub-divisions within the Volgian Age [Obsolete age term]
Sub-divisions within the Cretaceous Period
http://data.bgs.ac.uk/id/Geochronology/Division/KU http://data.bgs.ac.uk/id/Geochronology/Division/KL
Sub-divisions within the Albian Age
Sub-divisions within the Barremian Age
Sub-divisions within the Campanian Age
Sub-divisions within the Cenomanian Age
Sub-divisions within the Hauterivian Age
Sub-divisions within the Early Cretaceous Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/KA http://data.bgs.ac.uk/id/Geochronology/Division/KP http://data.bgs.ac.uk/id/Geochronology/Division/KB http://data.bgs.ac.uk/id/Geochronology/Division/KH http://data.bgs.ac.uk/id/Geochronology/Division/KV http://data.bgs.ac.uk/id/Geochronology/Division/KR
Sub-divisions within the Maastrichtian Age
Sub-divisions within the Coniacian Age
Sub-divisions within the Aptian Age
Sub-divisions within the Berriasian Age
Sub-divisions within the Santonian Age
Sub-divisions within the Turonian Age
Sub-divisions within the Late Cretaceous Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/KM http://data.bgs.ac.uk/id/Geochronology/Division/KC http://data.bgs.ac.uk/id/Geochronology/Division/KS http://data.bgs.ac.uk/id/Geochronology/Division/KO http://data.bgs.ac.uk/id/Geochronology/Division/KT http://data.bgs.ac.uk/id/Geochronology/Division/KE
Sub-divisions within the Valanginian Age
Sub-divisions within the Ryazanian Age [Obsolete age term]
Sub-divisions within the Mesozoic Era
http://data.bgs.ac.uk/id/Geochronology/Division/K http://data.bgs.ac.uk/id/Geochronology/Division/J http://data.bgs.ac.uk/id/Geochronology/Division/T
Sub-divisions within the Neogene Period
http://data.bgs.ac.uk/id/Geochronology/Division/NP http://data.bgs.ac.uk/id/Geochronology/Division/NM
Sub-divisions within the Neogene Period [Obsolete concept for period]
Sub-divisions within the Aquitanian Age
Sub-divisions within the Burdigalian Age
Sub-divisions within the Piacenzian Age
Sub-divisions within the Messinian Age
Sub-divisions within the Piacenzian Age [Obsolete concept for age]
Sub-divisions within the Langhian Age
Sub-divisions within the Miocene Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/NML http://data.bgs.ac.uk/id/Geochronology/Division/NMM http://data.bgs.ac.uk/id/Geochronology/Division/NME
Sub-divisions within the Early Miocene Sub-epoch
http://data.bgs.ac.uk/id/Geochronology/Division/NB http://data.bgs.ac.uk/id/Geochronology/Division/NA
Sub-divisions within the Late Miocene Sub-epoch
http://data.bgs.ac.uk/id/Geochronology/Division/NE http://data.bgs.ac.uk/id/Geochronology/Division/NT
Sub-divisions within the Mid Miocene Sub-epoch
http://data.bgs.ac.uk/id/Geochronology/Division/NS http://data.bgs.ac.uk/id/Geochronology/Division/NL
Sub-divisions within the Pliocene Epoch [Obsolete concept for epoch]
Sub-divisions within the Early Pliocene Sub-epoch
Sub-divisions within the Late Pliocene Sub-epoch
Sub-divisions within the Pliocene Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/NOL http://data.bgs.ac.uk/id/Geochronology/Division/NOE
Sub-divisions within the Serravallian Age
Sub-divisions within the Tortonian Age
Sub-divisions within the Waltonian Age
Sub-divisions within the Zanclean Age
Sub-divisions within the Ordovician Period
http://data.bgs.ac.uk/id/Geochronology/Division/OA http://data.bgs.ac.uk/id/Geochronology/Division/OLA http://data.bgs.ac.uk/id/Geochronology/Division/O4 http://data.bgs.ac.uk/id/Geochronology/Division/OE http://data.bgs.ac.uk/id/Geochronology/Division/OMD http://data.bgs.ac.uk/id/Geochronology/Division/OR http://data.bgs.ac.uk/id/Geochronology/Division/OEA http://data.bgs.ac.uk/id/Geochronology/Division/O1
Sub-divisions within the Tremadoc Epoch
Sub-divisions within the Abereiddian Age
Sub-divisions within the Llandeilian Age
Sub-divisions within the Caradoc Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/OX http://data.bgs.ac.uk/id/Geochronology/Division/OQ http://data.bgs.ac.uk/id/Geochronology/Division/OK http://data.bgs.ac.uk/id/Geochronology/Division/OJ
Sub-divisions within the Ashgill Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/OW http://data.bgs.ac.uk/id/Geochronology/Division/OU http://data.bgs.ac.uk/id/Geochronology/Division/OP
Sub-divisions within the Moridunian Age
Sub-divisions within the Caradoc Epoch [Obsolete concept for epoch]
Sub-divisions within the Llandeilo Epoch [Obsolete age term]
Sub-divisions within the Dapingian Age
Sub-divisions within the Darriwilian Age
Sub-divisions within the Llanvirn Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/O3 http://data.bgs.ac.uk/id/Geochronology/Division/O2
Sub-divisions within the Early Ordovician Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/OFL http://data.bgs.ac.uk/id/Geochronology/Division/OTR
Sub-divisions within the Fennian Age
Sub-divisions within the Floian Age
Sub-divisions within the Harnagian Sub-age
Sub-divisions within the Hirnantian Age
Sub-divisions within the Whitlandian Age
Sub-divisions within the Aurelucian Age
http://data.bgs.ac.uk/id/Geochronology/Division/OO http://data.bgs.ac.uk/id/Geochronology/Division/OZ
Sub-divisions within the Burrellian Age
http://data.bgs.ac.uk/id/Geochronology/Division/OL http://data.bgs.ac.uk/id/Geochronology/Division/OY http://data.bgs.ac.uk/id/Geochronology/Division/OG
Sub-divisions within the Katian Age
Sub-divisions within the Longvillian Sub-age
Sub-divisions within the Late Ordovician Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/OH http://data.bgs.ac.uk/id/Geochronology/Division/OKA http://data.bgs.ac.uk/id/Geochronology/Division/OSA
Sub-divisions within the Marshbrookian Sub-age
Sub-divisions within the Mid Ordovician Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/ODW http://data.bgs.ac.uk/id/Geochronology/Division/ODP
Sub-divisions within the Onnian Sub-age
Sub-divisions within the Costonian Sub-age
Sub-divisions within the Pusgillian Age
Sub-divisions within the Cheneyan Age
http://data.bgs.ac.uk/id/Geochronology/Division/OM http://data.bgs.ac.uk/id/Geochronology/Division/OS
Sub-divisions within the Arenig Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/OF http://data.bgs.ac.uk/id/Geochronology/Division/OI http://data.bgs.ac.uk/id/Geochronology/Division/OB
Sub-divisions within the Woolstonian Sub-age
Sub-divisions within the Sandbian Age
Sub-divisions within the Actonian Sub-age
Sub-divisions within the Tremadocian Age
Sub-divisions within the Cautleyan Age
Sub-divisions within the Llanvirn Epoch [Obsolete concept for epoch]
Sub-divisions within the Rawtheyan Age
Sub-divisions within the Streffordian Age
http://data.bgs.ac.uk/id/Geochronology/Division/ON http://data.bgs.ac.uk/id/Geochronology/Division/OT
Sub-divisions within the Soudleyan Sub-age
Sub-divisions within the Velfreyan Sub-age
Sub-divisions within the Permian Period
http://data.bgs.ac.uk/id/Geochronology/Division/PUL http://data.bgs.ac.uk/id/Geochronology/Division/PUG http://data.bgs.ac.uk/id/Geochronology/Division/PLC
Sub-divisions within the Asselian Age
Sub-divisions within the Ufimian-Kazanian Age [Obsolete age term]
Sub-divisions within the Artinskian Age
Sub-divisions within the Kungurian Age
Sub-divisions within the Early Permian Epoch [Obsolete age term]
Sub-divisions within the Cisuralian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/PK http://data.bgs.ac.uk/id/Geochronology/Division/PI http://data.bgs.ac.uk/id/Geochronology/Division/PS http://data.bgs.ac.uk/id/Geochronology/Division/PA
Sub-divisions within the Sakmarian Age
Sub-divisions within the Tatarian Age [Obsolete age term]
Sub-divisions within the Late Permian Epoch [Obsolete age term]
Sub-divisions within the Capitanian Age
Sub-divisions within the Wordian Age
Sub-divisions within the Guadalupian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/PUC http://data.bgs.ac.uk/id/Geochronology/Division/PUD http://data.bgs.ac.uk/id/Geochronology/Division/PUR
Sub-divisions within the Changhsingian Age
Sub-divisions within the Lopingian Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/PUH http://data.bgs.ac.uk/id/Geochronology/Division/PUW
Sub-divisions within the Roadian Age
Sub-divisions within the Wuchiapingian Age
Sub-divisions within the Quaternary Period
http://data.bgs.ac.uk/id/Geochronology/Division/QH http://data.bgs.ac.uk/id/Geochronology/Division/QP
Sub-divisions within the Quaternary Period [Obsolete concept for period]
Sub-divisions within the Pleistocene Epoch [Obsolete concept for epoch]
Sub-divisions within the Calabrian Age
http://data.bgs.ac.uk/id/Geochronology/Division/BC http://data.bgs.ac.uk/id/Geochronology/Division/QC http://data.bgs.ac.uk/id/Geochronology/Division/QMIS022 http://data.bgs.ac.uk/id/Geochronology/Division/BB http://data.bgs.ac.uk/id/Geochronology/Division/QB http://data.bgs.ac.uk/id/Geochronology/Division/QMIS023 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS024 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS025 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS026 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS027 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS028 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS029 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS030 http://data.bgs.ac.uk/id/Geochronology/Division/BM http://data.bgs.ac.uk/id/Geochronology/Division/QMIS031 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS032 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS033 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS034 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS035 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS036 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS037 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS038 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS039 http://data.bgs.ac.uk/id/Geochronology/Division/BW http://data.bgs.ac.uk/id/Geochronology/Division/QMIS040 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS041 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS042 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS043 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS044 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS045 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS046 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS047 http://data.bgs.ac.uk/id/Geochronology/Division/BE http://data.bgs.ac.uk/id/Geochronology/Division/QMIS048 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS049 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS050 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS051 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS052 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS053 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS054 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS055 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS056 http://data.bgs.ac.uk/id/Geochronology/Division/QS http://data.bgs.ac.uk/id/Geochronology/Division/BT http://data.bgs.ac.uk/id/Geochronology/Division/QMIS057 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS058 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS059 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS060 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS061 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS062 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS063 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS064
Sub-divisions within the Gelasian Age
http://data.bgs.ac.uk/id/Geochronology/Division/BT http://data.bgs.ac.uk/id/Geochronology/Division/QMIS065 http://data.bgs.ac.uk/id/Geochronology/Division/QV http://data.bgs.ac.uk/id/Geochronology/Division/QMIS066 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS067 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS068 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS069 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS070 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS071 http://data.bgs.ac.uk/id/Geochronology/Division/QE http://data.bgs.ac.uk/id/Geochronology/Division/QMIS072 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS073 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS074 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS075 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS076 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS077 http://data.bgs.ac.uk/id/Geochronology/Division/QN http://data.bgs.ac.uk/id/Geochronology/Division/QMIS078 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS079 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS080 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS081 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS082 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS083 http://data.bgs.ac.uk/id/Geochronology/Division/QT http://data.bgs.ac.uk/id/Geochronology/Division/QMIS084 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS085 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS086 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS087 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS088 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS089 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS090 http://data.bgs.ac.uk/id/Geochronology/Division/QL http://data.bgs.ac.uk/id/Geochronology/Division/QMIS091 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS092 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS093 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS094 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS095 http://data.bgs.ac.uk/id/Geochronology/Division/BP http://data.bgs.ac.uk/id/Geochronology/Division/QR http://data.bgs.ac.uk/id/Geochronology/Division/BR
Sub-divisions within the Ionian Age
http://data.bgs.ac.uk/id/Geochronology/Division/BS http://data.bgs.ac.uk/id/Geochronology/Division/QO http://data.bgs.ac.uk/id/Geochronology/Division/QX http://data.bgs.ac.uk/id/Geochronology/Division/BH http://data.bgs.ac.uk/id/Geochronology/Division/BL http://data.bgs.ac.uk/id/Geochronology/Division/QA http://data.bgs.ac.uk/id/Geochronology/Division/QC http://data.bgs.ac.uk/id/Geochronology/Division/BC
Sub-divisions within the Tarantian Age
http://data.bgs.ac.uk/id/Geochronology/Division/QD http://data.bgs.ac.uk/id/Geochronology/Division/BD http://data.bgs.ac.uk/id/Geochronology/Division/QI http://data.bgs.ac.uk/id/Geochronology/Division/BI
Sub-divisions within the Anglian Age
Sub-divisions within the Beestonian Age
Sub-divisions within the Cromerian Age
http://data.bgs.ac.uk/id/Geochronology/Division/QMIS013 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS014 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS015 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS016 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS017 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS018 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS019 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS020 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS021
Sub-divisions within the Devensian Age
http://data.bgs.ac.uk/id/Geochronology/Division/QMIS001 http://data.bgs.ac.uk/id/Geochronology/Division/QDL http://data.bgs.ac.uk/id/Geochronology/Division/QDW http://data.bgs.ac.uk/id/Geochronology/Division/QMIS002 http://data.bgs.ac.uk/id/Geochronology/Division/QDD http://data.bgs.ac.uk/id/Geochronology/Division/QMIS003 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS004 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS005A http://data.bgs.ac.uk/id/Geochronology/Division/QMIS005B http://data.bgs.ac.uk/id/Geochronology/Division/QMIS005C http://data.bgs.ac.uk/id/Geochronology/Division/QMIS005D
Sub-divisions within the Dimlington Stadial
Sub-divisions within the Loch Lomond Stadial (Younger Dryas)
Sub-divisions within the Windermere Interstadial
Sub-divisions within the Baventian Age
Sub-divisions within the Flandrian Age
Sub-divisions within the Holocene Epoch
Sub-divisions within the Ipswichian Age
Sub-divisions within the Ludhamian Age
Sub-divisions within the Marine Isotope Stage 1
Sub-divisions within the Marine Isotope Stage 2
Sub-divisions within the Marine Isotope Stage 3
Sub-divisions within the Marine Isotope Stage 4
Sub-divisions within the Marine Isotope Stage 5a
Sub-divisions within the Marine Isotope Stage 5b
Sub-divisions within the Marine Isotope Stage 5c
Sub-divisions within the Marine Isotope Stage 5d
Sub-divisions within the Marine Isotope Stage 5e
Sub-divisions within the Marine Isotope Stage 6
Sub-divisions within the Marine Isotope Stage 7
Sub-divisions within the Marine Isotope Stage 8
Sub-divisions within the Marine Isotope Stage 9
Sub-divisions within the Marine Isotope Stage 10
Sub-divisions within the Marine Isotope Stage 11
Sub-divisions within the Marine Isotope Stage 12
Sub-divisions within the Marine Isotope Stage 13
Sub-divisions within the Marine Isotope Stage 14
Sub-divisions within the Marine Isotope Stage 15
Sub-divisions within the Marine Isotope Stage 16
Sub-divisions within the Marine Isotope Stage 17
Sub-divisions within the Marine Isotope Stage 18
Sub-divisions within the Marine Isotope Stage 19
Sub-divisions within the Marine Isotope Stage 20
Sub-divisions within the Marine Isotope Stage 21
Sub-divisions within the Marine Isotope Stage 22
Sub-divisions within the Marine Isotope Stage 23
Sub-divisions within the Marine Isotope Stage 24
Sub-divisions within the Marine Isotope Stage 25
Sub-divisions within the Marine Isotope Stage 26
Sub-divisions within the Marine Isotope Stage 27
Sub-divisions within the Marine Isotope Stage 28
Sub-divisions within the Marine Isotope Stage 29
Sub-divisions within the Marine Isotope Stage 30
Sub-divisions within the Marine Isotope Stage 31
Sub-divisions within the Marine Isotope Stage 32
Sub-divisions within the Marine Isotope Stage 33
Sub-divisions within the Marine Isotope Stage 34
Sub-divisions within the Marine Isotope Stage 35
Sub-divisions within the Marine Isotope Stage 36
Sub-divisions within the Marine Isotope Stage 37
Sub-divisions within the Marine Isotope Stage 38
Sub-divisions within the Marine Isotope Stage 39
Sub-divisions within the Marine Isotope Stage 40
Sub-divisions within the Marine Isotope Stage 41
Sub-divisions within the Marine Isotope Stage 42
Sub-divisions within the Marine Isotope Stage 43
Sub-divisions within the Marine Isotope Stage 44
Sub-divisions within the Marine Isotope Stage 45
Sub-divisions within the Marine Isotope Stage 46
Sub-divisions within the Marine Isotope Stage 47
Sub-divisions within the Marine Isotope Stage 48
Sub-divisions within the Marine Isotope Stage 49
Sub-divisions within the Marine Isotope Stage 50
Sub-divisions within the Marine Isotope Stage 51
Sub-divisions within the Marine Isotope Stage 52
Sub-divisions within the Marine Isotope Stage 53
Sub-divisions within the Marine Isotope Stage 54
Sub-divisions within the Marine Isotope Stage 55
Sub-divisions within the Marine Isotope Stage 56
Sub-divisions within the Marine Isotope Stage 57
Sub-divisions within the Marine Isotope Stage 58
Sub-divisions within the Marine Isotope Stage 59
Sub-divisions within the Marine Isotope Stage 60
Sub-divisions within the Marine Isotope Stage 61
Sub-divisions within the Marine Isotope Stage 62
Sub-divisions within the Marine Isotope Stage 63
Sub-divisions within the Marine Isotope Stage 64
Sub-divisions within the Marine Isotope Stage 65
Sub-divisions within the Marine Isotope Stage 66
Sub-divisions within the Marine Isotope Stage 67
Sub-divisions within the Marine Isotope Stage 68
Sub-divisions within the Marine Isotope Stage 69
Sub-divisions within the Marine Isotope Stage 70
Sub-divisions within the Marine Isotope Stage 71
Sub-divisions within the Marine Isotope Stage 72
Sub-divisions within the Marine Isotope Stage 73
Sub-divisions within the Marine Isotope Stage 74
Sub-divisions within the Marine Isotope Stage 75
Sub-divisions within the Marine Isotope Stage 76
Sub-divisions within the Marine Isotope Stage 77
Sub-divisions within the Marine Isotope Stage 78
Sub-divisions within the Marine Isotope Stage 79
Sub-divisions within the Marine Isotope Stage 80
Sub-divisions within the Marine Isotope Stage 81
Sub-divisions within the Marine Isotope Stage 82
Sub-divisions within the Marine Isotope Stage 83
Sub-divisions within the Marine Isotope Stage 84
Sub-divisions within the Marine Isotope Stage 85
Sub-divisions within the Marine Isotope Stage 86
Sub-divisions within the Marine Isotope Stage 87
Sub-divisions within the Marine Isotope Stage 88
Sub-divisions within the Marine Isotope Stage 89
Sub-divisions within the Marine Isotope Stage 90
Sub-divisions within the Marine Isotope Stage 91
Sub-divisions within the Marine Isotope Stage 92
Sub-divisions within the Marine Isotope Stage 93
Sub-divisions within the Marine Isotope Stage 94
Sub-divisions within the Marine Isotope Stage 95
Sub-divisions within the Marine Isotope Stage 96
Sub-divisions within the Marine Isotope Stage 97
Sub-divisions within the Marine Isotope Stage 98
Sub-divisions within the Marine Isotope Stage 99
Sub-divisions within the Marine Isotope Stage 100
Sub-divisions within the Marine Isotope Stage 101
Sub-divisions within the Marine Isotope Stage 102
Sub-divisions within the Marine Isotope Stage 103
Sub-divisions within the Antian/Bramertonian Age
Sub-divisions within the Wolstonian Age
http://data.bgs.ac.uk/id/Geochronology/Division/QMIS006 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS007 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS008 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS009 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS010
Sub-divisions within the Pleistocene Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/Q2T http://data.bgs.ac.uk/id/Geochronology/Division/Q2I http://data.bgs.ac.uk/id/Geochronology/Division/Q2C http://data.bgs.ac.uk/id/Geochronology/Division/Q2G
Sub-divisions within the Pre-Ludhamian Age
http://data.bgs.ac.uk/id/Geochronology/Division/QMIS096 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS097 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS098 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS099 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS100 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS101 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS102 http://data.bgs.ac.uk/id/Geochronology/Division/QMIS103
Sub-divisions within the Pastonian Age
Sub-divisions within the Thurnian Age
Sub-divisions within the Pre-Pastonian Age
Sub-divisions within the Hoxnian Age
Sub-divisions within the Early Palaeozoic Sub-era
http://data.bgs.ac.uk/id/Geochronology/Division/S http://data.bgs.ac.uk/id/Geochronology/Division/O http://data.bgs.ac.uk/id/Geochronology/Division/E
Sub-divisions within the Late Palaeozoic Sub-era
http://data.bgs.ac.uk/id/Geochronology/Division/P http://data.bgs.ac.uk/id/Geochronology/Division/C http://data.bgs.ac.uk/id/Geochronology/Division/D
Sub-divisions within the Palaeozoic Era
http://data.bgs.ac.uk/id/Geochronology/Division/RL http://data.bgs.ac.uk/id/Geochronology/Division/RE
Sub-divisions within the Silurian Period
http://data.bgs.ac.uk/id/Geochronology/Division/SO http://data.bgs.ac.uk/id/Geochronology/Division/SU http://data.bgs.ac.uk/id/Geochronology/Division/SW http://data.bgs.ac.uk/id/Geochronology/Division/SL
Sub-divisions within the Aeronian Age
Sub-divisions within the Ludfordian Age
Sub-divisions within the Gorstian Age
Sub-divisions within the Homerian Age
Sub-divisions within the Llandovery Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/ST http://data.bgs.ac.uk/id/Geochronology/Division/SA http://data.bgs.ac.uk/id/Geochronology/Division/SR
Sub-divisions within the Pridoli Epoch
Sub-divisions within the Rhuddanian Age
Sub-divisions within the Sheinwoodian Age
Sub-divisions within the Telychian Age
Sub-divisions within the Ludlow Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/SD http://data.bgs.ac.uk/id/Geochronology/Division/SG
Sub-divisions within the Wenlock Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/SH http://data.bgs.ac.uk/id/Geochronology/Division/SS
Sub-divisions within the Triassic Period
http://data.bgs.ac.uk/id/Geochronology/Division/TU http://data.bgs.ac.uk/id/Geochronology/Division/TM http://data.bgs.ac.uk/id/Geochronology/Division/TE
Sub-divisions within the Anisian Age
Sub-divisions within the Carnian Age
Sub-divisions within the Ladinian Age
Sub-divisions within the Early Triassic Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/TO http://data.bgs.ac.uk/id/Geochronology/Division/TI
Sub-divisions within the Induan Age
Sub-divisions within the Scythian Age [Obsolete age term]
Sub-divisions within the Mid Triassic Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/TD http://data.bgs.ac.uk/id/Geochronology/Division/TA
Sub-divisions within the Norian Age
Sub-divisions within the Olenekian Age
Sub-divisions within the Rhaetian Age
Sub-divisions within the Late Triassic Epoch
http://data.bgs.ac.uk/id/Geochronology/Division/TR http://data.bgs.ac.uk/id/Geochronology/Division/TN http://data.bgs.ac.uk/id/Geochronology/Division/TC
Sub-divisions within the Geological Time
http://data.bgs.ac.uk/id/Geochronology/Division/FH http://data.bgs.ac.uk/id/Geochronology/Division/AP http://data.bgs.ac.uk/id/Geochronology/Division/AR http://data.bgs.ac.uk/id/Geochronology/Division/A1