Gaudryceras is an ammonite genus belonging to the family Gaudryceratidae.
These cephalopods were fast-moving nektonic carnivores. They lived in the Cretaceous period, from Albian to Maastrichtian stages (105.3 to 66.043 Ma).FossilworksSepkoski, Jack Sepkoski's Online Genus Database – Cephalopodes
Subgenera and species
Subg. Gaudryceras (Gaudryceras) de Grossouvre, 1894 Gaudryceras (Gaudryceras) alamedense (Smith, 1889) Gaudryceras (Gaudryceras) aureum (Anderson, 1958) Gaudryceras (Gaudryceras) cassisianum d'Orbigny, 1850 Gaudryceras (Gaudryceras) delvallense (Anderson, 1958) Gaudryceras (Gaudryceras) denmanense (Whiteaves, 1903) Gaudryceras (Gaudryceras) mitis Hauer, 1866 Gaudryceras (Gaudryceras) strictum Kennedy et al., 2007 Gaudryceras (Gaudryceras) texanum (Anderson, 1958) Subg. Gaudryceras (Mesogaudryceras) Spath, 1927 Gaudryceras (Mesogaudryceras) leptonema Sharpe, 1855 Subg. Gaudryceras (Neogaudryceras) Shimizu, 1935 Gaudryceras (Neogaudryceras) pictum Yabe, 1903 Gaudryceras (Neogaudryceras) beantalyense Collignon, 1956 Gaudryceras (Neogaudryceras) denseplicatum Jimbo, 1894 Gaudryceras (Neogaudryceras) kayei Forbes, 1846 Gaudryceras (Neogaudryceras) makarovense Shigeta and Maeda, 2005 Gaudryceras (Neogaudryceras) seymouriense Macellari, 1986 Gaudryceras (Neogaudryceras) stefaninii Venzo, 1936 Gaudryceras (Neogaudryceras) tenuiliratum Yabe, 1903 Gaudryceras (Neogaudryceras) varagurense Kossmat, 1895 Gaudryceras (Neogaudryceras) varagurense patagonicum (, 1907) Gaudryceras (Neogaudryceras) varicostatum van Hoepen, 1921
Distribution Fossils of species within this genus have been found in the Cretaceous sediments of Angola, Antarctica, Australia, Austria, Brazil, Chile, France, Germany, India, Japan, Madagascar, Mexico, New Zealand, Nigeria, Russia, South Africa, Spain and United States.
References