Early Cambrian Epoch
(Lower Cambrian, Caerfai, Waucoban, Georgian)
From 542 +/- 0.3 To 513 +/- 2 Ma
Start Defined By: Trace fossil, lowest occurrence of Treptichnus (Phycodes)
pedum. Near base of negative carbon-isotope excursion.
Start Based On: Amthor et. al., "Extinction of Cloudinia and Namacalathus at
the Precambrian-Cambrian boundary in Oman", _Geology_, v. 31, p. 431-434,
2003.
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
Global Stratotype Section and Point: Chapel Island Formation, Fortune Head,
Burin Peninsula, southeast Newfoundland, Canada
-- Overlaps With --
Australian Stage: Ordian (520 - 510)
North American Stage: Dyeran (524.5 - 512)
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Paleozoic (542 - 251)
Period: Cambrian (542 - 488.3)
-- Preceeded By --
Time: Precambrian (4567.17 - 542)
Eon: Proterozoic (2500 - 542)
Era: Neoproterozoic (1000 - 542)
Period: Ediacaran (630 - 542)
Australian Stage: Adelaidean (1300 - 542)
Chinese Stage: Sinian (800 - 542)
General Stage: Vendian (650 - 542)
General Stage: Poundian (570 - 542)
North American Stage: Hadrynian (850 - 542)
South African Stage: Namibian (900 - 542)
-- Followed By --
Epoch: Middle Cambrian (513 - 501)
Chinese Stage: Maozhangian (513 - 509)
Russian-Kazakhian Stage: Amgan (513 - 502)
-- Contains the Following Stages --
Chinese Stage: Meishuchuan (542 - 532)
Chinese Stage: Qungzusian (532 - 523)
Chinese Stage: Changlangpuan (523 - 518)
Chinese Stage: Longwangmioan (518 - 513)
North American Stage: Montezuman (529.5 - 524.5)
Regional Stage: Lenian (524 - 513)
Russian-Kazakhian Stage: Nemakit-Daldynian (542 - 534)
Russian-Kazakhian Stage: Tommotian (534 - 530)
Russian-Kazakhian Stage: Atdabanian (530 - 524)
Russian-Kazakhian Stage: Botomian (524 - 518.5)
Russian-Kazakhian Stage: Toyonian (518.5 - 513)
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