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.Arkell, et al, 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Soc. of America and Univ. Kansas press 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.Paratirolites-Paleodb Previously it was included in the Stephanitidae, 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.
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