Cephalopoda - Ammonitida - Sphenodiscidae
Alternative combination: Ammonites siva
Full reference: E. Forbes. 1846. Report on the fossil invertebrata from southern India, collected by Mr. Kaye and Mr. Cunliffe. Transactions of the Geological Society of London, Series 2 7:97-174
Belongs to Sphenodiscus according to W. J. Kennedy and R. A. Henderson 1992
See also Forbes 1846 and Hyatt 1903
Sister taxa: Sphenodiscus aberrans, Sphenodiscus beecheri, Sphenodiscus binkhorsti, Sphenodiscus brasiliensis, Sphenodiscus corroyi, Sphenodiscus intermedius, Sphenodiscus konincki, Sphenodiscus lobatus, Sphenodiscus parahybensis, Sphenodiscus pleurisepta, Sphenodiscus prepleurisepta, Sphenodiscus stantoni, Sphenodiscus ubaghsi
Type specimen: BMNH C51087, a shell
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 64.5
Distribution: found only at Pondicherry (Cretaceous of India)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.