Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Cephalopoda
Subclassis: † Ammonoidea
Ordo: Prolecanitida
Subordo: Prolecanitina
Superfamilia: Medlicottiaceae
Familia: Darvasiceratidae
Genus: Darvasiceras
Name
Darvasiceras Leonova, 1990
References
The Paleobiology Database Accessed on 12/04/08
Darvasiceras was a prolecanitid ammonoid cephalopod from the Early or Lower Permian Chelamchin Formation of Tajikistan. The genus is included in what is now the superfamily Medlicottioidea. The type species is Darvisciceras minum.
The shell of Darvasiceras is discoidal, moderately involute in adult stages; the venter narrow, smooth, and flat; the umbilicus shallow and small. The external portion of the suture consists of a small ventral and five umbilical lobes (per side). Lobes are weakly developed, are neither deep nor wide, and are separated by extremely wide, rounded saddles. The first two umbilical lobes are bifid, prongs being weakly developed.
References
Notes
"Paleobiology Database - Darvasiceras". Retrieved 2014-05-28.
Web links
Genus Darvaciceras in GONIAT online
Retrieved from "http://en.wikipedia.org/"
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