Paratirolites is an Early Triassic ceratite

Ceratitida

The Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammonites....

 from Armenia

Armenia

Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...

 and Iran

Iran

Iran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...

 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 presently included in the Xenodiscacean family Dzhulfitidae

Dzhulfitidae

Dzhulfitidae is a small extinct family of Upper Permian and Lower Triassic ammonoids from Asia, included in the ceratitid Xenodiscaceae and containing only three genera: Abachites, Dzhulfites, and Paratirolites....

 along with Abichites

Abichites

Abichites is Ceratitid genus, assigned to the family Dzhulfitidae. from the Upper Permian of Armenia, Azerbaijan, and Iran with three species recognized: A. abichi, A. mojsisovicsi, and A. stoyanowi ....

and Dzhulfites

Dzhulfites

Dzhulfites is a xenodiscacean ceratitid ammonoid named by Shevyrev, 1965, for species found in the Upper Permian Julfa Formation of Azerbaijan and type genus for the Dzhulfitidae. The type species, Dzhulfites spinosus Shevyrev 1965 is based on Paratirolites spinosus...

. Previously it was included in the Stephanitidae

Stephanitidae

Stephanitidae is an extinct family of cephalopod belonging to the Ammonite superfamily Noritaceae.- References :*...

, a family belonging to the Ceratitaceae

Ceratitaceae

The Ceratitaceae is a superfamily in the ammonoid cephalopod order Ceratitida characterised in general by highly ornamented or tuberculate shells with ceratitic sutures that may become goniatitic or ammonitic s some offshoots....

.

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