Paratirolites

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

Paratirolites is a genus of latest Permian and earliest Triassic ceratites from Armenia, Azerbaijan, Afghanistan, China and Iran with distinct ribs, prominent ventro-lateral tubercles, and a broadly arched venter. The suture is ceratitic with a large ventral saddle.[1][2][3] Ceratites are ammonoid cephalopods that lived during the Late Permian and Triassic.

Paratirolites is included in the Xenodiscoidean family Dzhulfitidae along with Abichites and Dzhulfites.[4] Previously it was included in the Stephanitidae,[1] a family belonging to the Ceratitoidea.

Species of Paratirolites have also been found in the Upper Permian of Azerbaijan, China, Thailand and Japan, and in the Triassic of Azerbaijan and Afghanistan.[4]

References

  1. ^ a b Arkell, et al, 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Soc. of America and Univ. Kansas press
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  4. ^ a b Paratirolites-Paleodb