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.[1] 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.[2] Previously it was included in the Stephanitidae,[1] 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.[2]

References

  1. 1 2 Arkell, et al, 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Soc. of America and Univ. Kansas press
  2. 1 2 Paratirolites-Paleodb
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