Cephalopoda - Ammonitida - Knemiceratidae
Alternative combination: Sphenodiscus roemeri
Synonyms: Knemiceras azlense Scott 1940, Knemiceras nodosum Scott 1940, Knemiceras trinitense Scott 1940
Belongs to Parengonoceras according to W. J. Kennedy et al. 1998
See also Scott 1940
Sister taxa: Parengonoceras algerianum, Parengonoceras bussoni, Parengonoceras caneroti, Parengonoceras champaraense, Parengonoceras chottensis, Parengonoceras duartei, Parengonoceras ebrayi, Parengonoceras guadaloupaeforme, Parengonoceras haasi, Parengonoceras mahmoudi, Parengonoceras pernodosum, Parengonoceras ziczag
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 68.0
Distribution:
• Cretaceous of United States (2: Texas collections)
Total: 2 collections including 4 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.