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Glossary entry

Stratigraphic time

Millions years ago: 470 ±1.4 – 458.4 ±0.9

Ordovician

EdCaCaCaCaOrOrOrSiSiSiSiDeDeDeCarCarPePePeTrTrTrJuJuJuCreCrePalEoOlMiPliPleHol


Eon Era System Period Series Epoch Stage Millions
years ago
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Upper Ordovician Hirnantian 443.8±1.5
Katian 445.2±1.4
Sandbian 453±0.7
Middle Ordovician Darriwilian 458.4±0.9
Dapingian 467.3±1.1
Lower Ordovician Floian 470±1.4
Tremadocian 477.7±1.4


Preceded by
Followed by

Lithostratigraphy

Morocco: Ouine-Inirne formation, Tachilla formation, Guezzart formation, Taddrist formation, Bou-Zeroual formation, Imfout formation, Russia: Badaranovo formation, Ancherikovo formation, Tareevo formation, Volkhov formation, Portugal: Valongo formation, Czechia: Dobrotiv formation, Šárka formation, Klabava formation, Spain: Castillejo formation, Navas de Estena formation, Norway: Huk formation, Tøyen shale, Elnes formation, Valhalfonna formation, Estonia: Kandle formation, Pakri formation, Toila formation, France: Traveusot formation, Le Pissot formation, Pierre Melière formation, Moitiers d’Allone formation, Andouillé formation, Postolonnec formation, Poland: Mójcza formation, United Kingdom: Llanfallteg formation, Llanfawr mudstone formation, Porth Llauog formation, Hope shale, Mytton Flags formation, Weston Flags formation, Betton shale, Meadowtown formation, Rorrington shale, Camnant mudstone, Gilwern volcanic formation, Newmead sandstone formation, Cwm-Amliw tuff formation, Llandrindod tuff formation, Builth Volcanic formation, Pontyfenni formation, Sweden: Andersö shale, Seby Limestone formation, Komstad limestone, Almelund shale, Killeröd formation, Tøyen shale, Gullhögen formation, Holen limestone, United States of America: Copenhagen formation, Glenwood formation, Winneshiek shale, Chazy formation, Day Point formation, Lenoir limestone, Douglas Lake member, Antelope Valley formation, El Paso formation, Canada: Table Head formation, Chazy formation, Lévis formation, Shallow Bay formation, Green Point formation, Lower Head formation, Laval formation, Broken Skull formation, Bolivia: San Lucas Ocuri formation, Pircancha formation, Peru: San José formation, Argentina: Portezuelo del Tontal formation, Los Sombreros formation, Las Vacas formation, Gualcamayo formation, San Juan formation, Kazakhstan: Karakan formation, Beke formation, Akzhal formation, Shundy formation, Itmurundy formation, Kazyk formation, Turetai formation, Kusheke formation, Zorievka formation, China: Zitai formation, Klimoli formation, Majiagou formation, Kuniutan formation, Sandaokan formation, Zhuozishan formation, Shihtien formation, Laojianshan formation, Siliangssu formation, Dawan formation, Iran: Lashkarak formation, Shirgesht formation, South Korea: Jigunsan formation, Tuwibong formation, Makgol formation, Australia: Goldwyer formation, Stairway sandstone, Rowena formation

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