†Arctocephalites alticostus Imlay 1962 (ammonite)
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Cephalopoda - Ammonitida - Cardioceratidae
Full reference: R. W. Imlay. 1962. Jurassic (Bathonian or Early Callovian) Ammonites from Alaska and Montana. Geological Survey Professional Paper 374-C:1-32
Belongs to Arctocephalites according to R. W. Imlay 1962
Sister taxa: Arctocephalites (Cranocephalites), Arctocephalites arcticus, Arctocephalites callomoni, Arctocephalites elegans, Arctocephalites saypoensis
Type specimen: USNM 130757, a shell
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 36.0
Distribution:
• Jurassic of United States (5: Alaska collections)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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