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Paratirolites

Paratirolites
Temporal range: Upper Permian–Lower Triassic
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ceratitida
Superfamily: Xenodiscaceae
Family: Dzhulfitidae
Genus: Paratirolites
Stoyanow, 1910

Paratirolites is a genus of Early Triassic ceratites from Armenia and Iran with distinct ribs, prominent ventro-lateral tubercles, and a broadly arched venter. The suture is ceratitic with a large ventral saddle. Ceratites are ammonoid cephalopods that lived during the Late Permian and Triassic.

Paratirolites is included in the Xenodiscacean family Dzhulfitidae along with Abichites and Dzhulfites. Previously it was included in the Stephanitidae, a family belonging to the Ceratitaceae.

Species of Tirolites have also been found in the Upper Permian of Azerbaijan, Thailand and Japan. and in the Triassic of Axerbaijan and Afghanistan.


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Wikipedia

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