Cephalopoda - Ammonitida - Placenticeratidae
Alternative combination: Placenticeras sanctaemonicae
Full reference: C. A. Waring. 1917. Stratigraphic and faunal relations of the Martinez to the Chico and Tejon of Southern California. Proceedings of the California Academy of Sciences 7(4):41-124
Belongs to Metaplacenticeras according to F. M. Anderson 1958
See also Hoots 1931 and Waring 1917
Sister taxa: Metaplacenticeras bowersi, Metaplacenticeras californicum, Metaplacenticeras pacificum, Metaplacenticeras subtilistriatum
Type specimen: Its type locality is Chico area south of the Santa Monica Mountains (Locality 3 of Waring 1917), which is in a Cretaceous marine sandstone/shale in the Tuna Canyon Formation of California
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of United States (4: California collections)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.