List of phytosaur-bearing stratigraphic units

Last updated

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

Phytosaur family of reptiles

Phytosaurs are an extinct group of large, mostly semiaquatic Late Triassic archosauriform reptiles. Phytosaurs belong to the family Phytosauridae and the order Phytosauria. Phytosauria and Phytosauridae are often considered to be equivalent groupings containing the same species, but some studies have identified non-phytosaurid phytosaurians. Phytosaurs were long-snouted and heavily armoured, bearing a remarkable resemblance to modern crocodilians in size, appearance, and lifestyle, as an example of convergence or parallel evolution. The name "phytosaur" means "plant reptile", as the first fossils of phytosaurs were mistakenly thought to belong to plant eaters. The name is misleading because the sharp teeth in phytosaur jaws clearly show that they were predators.

List of formations

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