Cephalopoda - Ammonitida - Perisphinctidae
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 Procerites according to R. W. Imlay 1953
Sister taxa: Procerites (Procerites), Procerites gallus, Procerites hodsoni, Procerites imitator, Procerites laeviplex, Procerites pseudoperspicuus, Procerites pseudorjazanensis, Procerites quercinus, Procerites tmetolobus, Procerites verciacensis, Gracilisphinctes lemoinei, Gracilisphinctes arkelli, Gracilisphinctes andranomantsyensis, Gracilisphinctes (Gracilisphinctes), Gracilisphinctes (Prevalia)
Type specimen: USNM 108146, a shell. Its type locality is USGS Mesozoic 21273, Chisik Island, which is in a Callovian marine siliciclastic in the Chinitna Formation of Alaska.
Ecology: fast-moving nektonic carnivore
Distribution: found only at USGS Mesozoic 21273, Chisik Island
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.