Tremadocian
General info
Belongs to
Lower Ordovician
Type chronostratigraphy
Rank Stage
Scope global
Status formal standard
Author Sedgwick
Year 1847
Etymon Tremadoc, village in Wales
Age top (Ma) 477.7
Age base (Ma) 485.4
Date added 2003-04-02
Date changed 2022-11-04
Stratotypes
LocalityTypeFrom (m)1To (m)2ReferenceRemarks
Green Point Section, western Newfoundland
boundary stratotype
101.8 Cooper et al., 2001
References (3)Related units (3)Specimens (5832)Samples (3108)
IDSample No.LocalityDepth / thickness (m)StratigraphyCollectorDate collectedImage
204226 204226 Aseri cliff Pakerort Stage Popov
204224 204224 Ülgase outcrop Pakerort Stage Popov
204222 204222 Toolse outcrop Pakerort Stage Popov
204219 204219 Toolse outcrop Tremadocian Popov
204217 204217 Valkla outcrop Pakerort Stage Popov
204027 GS-to be added Pakerort Stage Graul, Sophie
204026 GS-2021-189 Toolse PH011B borehole 22.1 Pakerort Stage Graul, Sophie
204025 GS-2021-187-188 Toolse PH011B borehole 21.9 Pakerort Stage Graul, Sophie
204024 GS-2021-185-186 Toolse PH011B borehole 21.7 Pakerort Stage Graul, Sophie
204023 GS-2021-183-184 Toolse PH011B borehole 21.5 Pakerort Stage Graul, Sophie
204022 GS-2021-181-182 Toolse PH011B borehole 21.3 Pakerort Stage Graul, Sophie
204021 GS-2021-178-179 Toolse PH011B borehole 20.8 Pakerort Stage Graul, Sophie
204020 GS-2021-176-177 Toolse PH011B borehole 20.6 Pakerort Stage Graul, Sophie
204019 GS-2021-174-175 Toolse PH011B borehole 20.4 Pakerort Stage Graul, Sophie
204018 GS-2021-157-158 Toolse PH010B borehole 26.8 Pakerort Stage Graul, Sophie
204017 GS-2021-155-156 Toolse PH010B borehole 26.6 Pakerort Stage Graul, Sophie
204016 GS-2021-153-154 Toolse PH010B borehole 26.4 Pakerort Stage Graul, Sophie
204015 GS-2021-151-152 Toolse PH010B borehole 26.2 Pakerort Stage Graul, Sophie
204014 GS-2021-149-150 Toolse PH010B borehole 26 Pakerort Stage Graul, Sophie
204013 GS-2021-147-148 Toolse PH010B borehole 25.8 Pakerort Stage Graul, Sophie
204012 GS-2021-145-146 Toolse PH010B borehole 25.6 Pakerort Stage Graul, Sophie
204011 GS-2021-143-144 Toolse PH010B borehole 25.4 Pakerort Stage Graul, Sophie
204010 GS-2021-141-142 Toolse PH010B borehole 25.2 Pakerort Stage Graul, Sophie
204009 GS-2021-139-140 Toolse PH010B borehole 25 Pakerort Stage Graul, Sophie
204008 GS-2021-137-138 Toolse PH010B borehole 24.8 Pakerort Stage Graul, Sophie
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