Cephalopoda - Ammonitida - Stephanoceratidae
Alternative spelling: Ermoceras (Kosmermoceras)
Full reference: W. J. Arkell. 1952. Jurassic ammonites from Jebel Tuwaiq, central Arabia. Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences 236:241-313
Parent taxon: Stephanoceratidae according to W. J. Arkell et al. 1957
See also Arkell 1952 and Sepkoski 2002
Sister taxa: Cadomitinae, Clydoniceratinae, Dettermanites, Ermoceras, Frebolditinae, Garantianinae, Kumatostephanus, Lupherites, Mollistephaninae, Parkinsoniinae, Riccardiceras, Skolekostephanus, Sohlites, Stemmatoceras, Stephanoceratinae, Telermoceras, Westermannites
Subtaxa: Ermoceras (Kosmermoceras) aulacostephanus Ermoceras (Kosmermoceras) elegans Ermoceras (Kosmermoceras) magnificum Ermoceras (Kosmermoceras) runcinatum Ermoceras (Kosmermoceras) strigatum
Type: Ermoceras (Kosmermoceras) runcinatum
Distribution:
• Jurassic of Egypt (1 collection), Saudi Arabia (18)
Total: 19 collections including 33 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.