Full reference: S. Niko and M. Ehiro. 2020. Trematoceras watanabei, a new orthoconic nautiloid species from the Middle Triassic Fukkoshi Formation, Miyagi Prefecture, Northeast Japan. Bulletin of the Tohoku University Museum 19:1-6
Belongs to Trematoceras according to A. Pohle and C. Klug 2024
See also Niko and Ehiro 2020
Sister taxa: Trematoceras boreale, Trematoceras clarum, Trematoceras elegans, Trematoceras hikichii, Trematoceras insperatum, Trematoceras lytosiphon, Trematoceras mangishlakense, Trematoceras osawaense, Trematoceras solidum, Trematoceras subcampanile, Trematoceras vulgare
Type specimen: IGPS 112409, a shell. Its type locality is Fk-1b, Ozashi area, Jusanhama, which is in an Anisian deep-water sandstone/mudstone in the Fukkoshi Formation of Japan.
Ecology: fast-moving nektonic carnivore
Distribution:
• Triassic of Japan (2 collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.