†Stemmatoceras arcicostum Imlay 1967 (ammonite)
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Cephalopoda - Ammonitida - Stephanoceratidae
Full reference: R. W. Imlay. 1967. Twin Creek Limestone (Jurassic) in the Western Interior of the United States. United States Geological Survey Professional Paper 540:1-105
Belongs to Stemmatoceras according to R. W. Imlay 1967
Sister taxa: Stephanoceras (Stemmatoceras) subcoronatum, Stephanoceras (Stemmatoceras) triptolemus
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of United States (4: Montana, Utah collections)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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