Cosmoceras (Gulielmiceras) alaskanum Imlay 1953 (ammonite)

Cephalopoda - Ammonitida - Kosmoceratidae

Full reference: R. W. Imlay. 1953. Callovian (Jurassic) ammonites from the United States and Alaska Part 2. Alaska Peninsula and Cook Inlet regions. United States Geological Survey Professional Paper 249-B:41-108

Belongs to Cosmoceras (Gulielmiceras) according to R. W. Imlay 1953

Sister taxa: none

Type specimen: USNM 108141, a shell. Its type locality is USGS Mesozoic 2920, Iniskin Bay, which is in a Callovian marine siliciclastic in the Chinitna Formation of Alaska.

Ecology: fast-moving nektonic carnivore

Distribution:

• Jurassic of United States (2: Alaska collections)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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