Cephalopoda - Ammonitida - Hammatoceratidae
Alternative combinations: Eudmetoceras (Euaptetoceras) amplectens, Hammatoceras amplectens
Synonym: Witchellia aguilonia Imlay 1964
Full reference: S. Buckman. 1889. The descent of Sonninia and Hammatoceras. Quarterly Journal of the Geological Society of London 45:651-663
Belongs to Euaptetoceras according to D. Sadki 1994
See also Westermann 1969 and Westermann and Riccardi 1982
Sister taxa: Eudmetoceras (Euaptetoceras) nucleospinosum, Csernyeiceras verpillierense
Average measurements (in mm): shell diameter 119.8
Distribution:
• Jurassic of Argentina (1 collection), Morocco (1), United States (4: Alaska)
Total: 6 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.