Grypoceratoidea Hyatt, 1900

Korn, Dieter & Hairapetian, Vachik, 2025, Late Permian nautiloids from Baghuk Mountain (Central Iran), European Journal of Taxonomy 1019, pp. 1-76 : 6

publication ID

https://doi.org/10.5852/ejt.2025.1019.3071

publication LSID

lsid:zoobank.org:pub:E24EBF4A-9FE2-47E4-A656-E1698F88BB41

DOI

https://doi.org/10.5281/zenodo.17227665

persistent identifier

https://treatment.plazi.org/id/03E487D4-FFDE-4905-FDDD-5DA186EAF96A

treatment provided by

Plazi

scientific name

Grypoceratoidea Hyatt, 1900
status

 

Superfamily Grypoceratoidea Hyatt, 1900

Diagnosis

Superfamily of the suborder Domatoceratina with a discoidal, subinvolute to evolute conch. Whorl profile usually inverted trapezoidal with a distinct ventrolateral shoulder and a distinct umbilical margin. Derived species show a variation of modifications including a concave venter, a skid-like ventrolateral shoulder and an angular umbilical margin. Whorl overlap extremely small to moderate. Sculpture in most species lacking, in some species with short lateral ribs or ventrolateral nodes. Septa simply domed; suture line strongly dependent on the whorl profile, usually with broadly rounded lobes and narrowly rounded or subangular saddles (from Korn 2025).

Included families

Grypoceratidae Hyatt, 1900 ; Domatoceratidae Miller & Youngquist, 1949 ; Ocunautilidae fam. nov.

Remarks

A discussion of the Grypoceratoidea has been given by Korn (2025).

Kingdom

Animalia

Phylum

Mollusca

Class

Cephalopoda

SubClass

Nautiloidea

Order

Nautilida

SubOrder

Domatoceratina

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