Dzhulfitidae is a small extinct family of Upper

Permian The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the s ...

and Lower

Triassic The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is t ...

ammonoids Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family N ...

from Asia, included in the ceratitid

Xenodiscoidea Xenodiscoidea, formerly Xenodiscaceae, is a superfamily within the ammonoid order Ceratitida. The superfamily was named by Frech in 1902, presently contains ten families, only one of which was included in the original Otocerataceae of Hyatt, 190 ...

and containing only three genera: ''Abachites'', ''Dzhulfites'', and ''Paratirolites''. Dzhulfitidae was named by Shevyrev in 1965 to contain ''Dzhulfites'' and ''Abachites'' also named by him at that time. ''Paratirolites'' was removed from its previous position in the

Ceratitaceae Ceratitoidea, formerly Ceratitaceae, is an ammonite superfamily in order Ceratitida characterized in general by highly ornamented or tuberculate shells with ceratitic sutures that may become goniatitic or ammonitic in some offshoots. (Arkell ' ...

. Species of dzhulfitid genera have been found in Upper Permian and/or Lower Triassic sediments in Armenia, Azerbaijan, Iran, Afghanistan, Thailand, and Japan.

References

Dzhulfitidae-Paleodb
10/26/10 Ceratitida families Xenodiscoidea Lopingian first appearances Early Triassic extinctions {{Ceratitida-stub