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Gaudryceras hobetsense Shigeta and Nishimura 2013 (ammonite)

Cephalopoda - Ammonitida - Gaudryceratidae

PaleoDB taxon number: 331589

Full reference: Y. Shigeta and T. Nishimura. 2013. A new species of Gaudryceras (Ammonoidea, Gaudryceratidae) from the lowest Maastrichtian of Hokkaido, Japan and its biostratigraphic implications. Paleontological Research 17:47-57

Belongs to Gaudryceras according to Y. Shigeta and T. Nishimura 2013

Sister taxa: Gaudryceras (Gaudryceras), Gaudryceras aenigma, Gaudryceras beantalyense, Gaudryceras crassicostatum, Gaudryceras izumiense, Gaudryceras kayei, Gaudryceras makarovense, Gaudryceras mite, Gaudryceras numidum, Gaudryceras propemite, Gaudryceras seymouriense, Gaudryceras stefaninii, Gaudryceras striatum, Gaudryceras tenuiliratum, Gaudryceras varagurense, Lytoceras (Gaudryceras) alamedense, Lytoceras (Gaudryceras) aureum, Lytoceras (Gaudryceras) delvallense, Lytoceras (Gaudryceras) denmanense, Lytoceras (Gaudryceras) texanum, Mesogaudryceras leptonema, Vertebrites murdochi, Gaudryceras (Neogaudryceras) pictum

Type specimen: HMG-1573, a shell. Its type locality is Tributary of Tonai-zawa River, which is in a Maastrichtian marine mudstone in the Hakobuchi Formation of Japan.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell width 29.7, shell diameter 84.0