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Geological strata known to contain the fossils of the extinct group of reptiles known as phytosaurs occur predominantly in the United States and Europe.

List of formations

Group or Formation Period Country Notes
Argilliti di Riva di Solto Formation Triassic  Italy
Baldy Hill Formation Triassic  United States
Cenger Formation Triassic  Turkey
Chatham Group/Bull Run Formation Triassic  United States
Chatham Group/New Haven Formation Triassic  United States
Chinle Formation Triassic  United States
Chinle Group/Bluewater Creek Formation Triassic  United States
Chinle Group/Dockum Formation Triassic  United States
Chinle Group/Garita Creek Formation Triassic  United States
Chinle Group/Petrified Forest Formation Triassic  United States
Chinle Group/Redonda Formation Triassic  United States
Chinle Group/San Pedro Arroyo Formation Triassic  United States
Chinle Group/Santa Rosa Formation Triassic  United States
Chinle Group/Sloan Canyon Formation Triassic  United States
Chinle Group/Tecovas Formation Triassic  United States
Chinle Group/Trujillo Formation Triassic  United States
Chugwater Group/Popo Agie Formation Triassic  United States
Dockum Formation Triassic  United States
Dockum Group/Bull Canyon Formation Triassic  United States
Dockum Group/Camp Springs Formation Triassic  United States
Dockum Group/Colorado City Formation Triassic  United States
Dockum Group/Cooper Canyon Formation Triassic  United States
Dockum Group/Santa Rosa Formation Triassic  United States
Dockum Group/Tecovas Formation Triassic  United States
Dockum Group/Trujillo Formation Triassic  United States
Doswell Group/Falling Creek Formation Triassic  United States
Drawno Beds Formation Triassic  Poland
Fleming Fjord Formation Triassic  Greenland
Fundy Group/Blomidon Formation Triassic  Canada
Garita Creek Formation Triassic  United States
Gartra Formation Triassic  United States
Gondwana Group/Lower Maleri Formation Triassic  India
Gondwana Group/Tiki Formation Triassic  India
Gres à Avicula contorta Formation Triassic  France
Huai Hin Lat Formation Triassic  Thailand
Isalo Group/Isalo II or Makay Formation Triassic  Madagascar
Isalo Group/upper Isalo II Formation Triassic  Madagascar
Kuchinari Group/Huai Hin Lat Formation Triassic  Thailand
Lias Group/Blue Lias Formation Jurassic  United Kingdom
Löwenstein Formation Triassic  Germany
Magnesian Conglomerate Formation Triassic  United Kingdom
Middle Buntsandstein Formation Triassic  Germany
Middle Keuper Group/Arnstadt Formation Triassic  Germany
Middle Keuper Group/Hassberge Formation Triassic  Germany
Middle Keuper Group/Knollenmergel Formation Triassic   Switzerland
Middle Keuper Group/Löwenstein Formation Triassic  Germany
Middle Keuper Group/Trossingen Formation Triassic  Germany
Middle Keuper Group/Weser Formation Triassic  Germany
Newark Group/Cumnock Formation Triassic  United States
Newark Group/Lithofacies Association II Formation Triassic  United States
Newark Group/Lockatong Formation Triassic  United States
Newark Group/New Oxford Formation Triassic  United States
Newark Group/Pekin Formation Triassic  United States
Newark Group/Vinita Formation Triassic  United States
Passaic Formation Triassic  United States
Pekin Formation Triassic  United States
Rosario do Sul Group/Caturrita Formation Triassic  Brazil
Santa Rosa Formation Triassic  United States
Sloan Canyon Formation Triassic  United States
Steinmergel Formation Triassic  Luxembourg
Stockton Formation Triassic  United States
Tecovas Formation Triassic  United States
Timezgadiouine Formation Triassic  Morocco
Travesser Formation Triassic  United States
Upper Keuper/Exter Formation Triassic  Germany
Upper Keuper/Burgsandstein Formation Triassic  Germany
Upper Keuper/Feuerletten Formation Triassic  Germany
Zarzaïtine Group/Lower Zarzaïtine Formation Triassic  Algeria
Zorzino Limestone Formation Triassic  Italy


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