Cephalopoda - Ammonitida - Sphaeroceratidae

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 Lilloettia according to R. W. Imlay 1953

Sister taxa: Lilloettia boesei, Lilloettia buckmani, Lilloettia lilloetensis, Lilloettia mertonyarwoodi, Lilloettia stantoni, Lilloettia steinmanni, Lilloettia tipperi

Type specimen: USNM 108027, a shell. Its type locality is USGS Mesozoic 21322, Iniskin Peninsula, which is in a Callovian marine siliciclastic in the Chinitna Formation of Alaska.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 139.9

Distribution: found only at USGS Mesozoic 21322, Iniskin Peninsula

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Specimen images are retrieved through the ePANDDA API.