Katian
General info
Belongs to
Upper Ordovician
Type chronostratigraphy
Rank Stage
Scope global
Status formal standard
Year 2003
Etymon Katy Lake, Oklahoma, USA
Original locality Black Knob Ridge outcrop
Age top (Ma) 445.2
Age base (Ma) 453
Date added 2003-04-02
Date changed 2022-11-04
References (3)Related units (7)Specimens (33591)Samples (10431)
NumberNameLocalityDepth (m)StratigraphyImage
TUG 134-1360 Halysites catenularius Lyckholm Vormsi Stage
TUG 134-1265 Tabulata Pahkla, Raplamaa Pirgu Stage
TUG 134-1069 Echinodermata Rakvere Rakvere Stage
TUG 134-988 Sowerbyella Rakvere Rakvere Stage
TUG 134-971 Brachiopoda Rakvere Rakvere Stage
TUG 134-963 Strophomena Rakvere Rakvere Stage
TUG 134-934 Brachiopoda Rakvere Rakvere Stage
TUG 134-931 Brachiopoda Rakvere Rakvere Stage
TUG 134-890 Platystrophia lynx lynx Omuti, Leningrad Oblast Nabala Stage
TUG 134-880 Platystrophia lynx lynx
Oandu Stage
TUG 134-838 Vellamo verneuilii Sutlepa quarry Pirgu Stage
TUG 47-857 Maclurites neritoides Piirsalu old quarry Pirgu Stage
TUG 39-698
Pirgu Stage
TUG 77-20 Gastropoda
Pirgu Stage
TUG 665-158 Gastropoda Rakvere Rakvere Stage
TUG 665-157 Rakvere Rakvere Stage
TUG 665-156 Gastropoda Rakvere Rakvere Stage
TUG 665-155 Gastropoda Rakvere Rakvere Stage
TUG 665-154 Gastropoda Rakvere Rakvere Stage
TUG 665-153 Gastropoda Rakvere Rakvere Stage
TUG 665-152 Gastropoda Rakvere Rakvere Stage
TUG 665-151 Gastropoda Rakvere Rakvere Stage
TUG 665-150 Pararaphistoma Rakvere Rakvere Stage
TUG 665-149 Liospira wesenbergense Rakvere Rakvere Stage
TUG 665-148 Gastropoda Rakvere Rakvere Stage
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