PaleoDB taxon number: 331587
Full reference: Y. Shigeta. 2013. A new species of Tanabeceras (Ammonoidea, Gaudryceratidae) from the lowest Cenomanian of Hokkaido, Japan. Paleontological Research 17:312-316
Sister taxa: none
Type specimen: TKD 30051, a shell. Its type locality is Locality 81005, Suribachi-zawa, which is in a Cenomanian marine mudstone in Japan.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell width 14.9, shell diameter 18.7