Kossmaticeras is an extinct ammonoid genus belonging to the desmoceratacean family Kossmaticeratidae. Species in this genus were fast-moving nektonic carnivores. They lived during the Late Cretaceous, from the upper Turonian to the upper Maastrichtian ages.Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda The type species of the genus is K. theobaldianus.
Subgenera and species
Kossmaticeras (Karapadites) Collignon, 1954 Kossmaticeras (Karapadites) besairieri Collignon, 1954 Kossmaticeras (Karapadites) karapadensis Kossmat, 1897 Kossmaticeras (Karapadites) madrasinus Stoliczka, 1865 Kossmaticeras (Karapadites) planissimus Collignon, 1966 Kossmaticeras (Kossmaticeras) de Grossouvre, 1901 Kossmaticeras (Kossmaticeras) inornatum Collignon, 1966 Kossmaticeras (Kossmaticeras) jeletzkyi Collignon, 1965 Kossmaticeras (Kossmaticeras) jonesi Collignon, 1965 Kossmaticeras (Kossmaticeras) kilenensis Alsen, 2018 Kossmaticeras (Kossmaticeras) sakondryense Collignon, 1954 Kossmaticeras (Kossmaticeras) sparsicostatum Kossmat, 1897 Kossmaticeras (Kossmaticeras) theobaldianum Stolickza, 1865 Kossmaticeras (Natalites) Collignon, 1954 Kossmaticeras (Natalites) africanus van Hoepen, 1920 Kossmaticeras (Natalites) elegans Kennedy, 1985 Kossmaticeras (Natalites) similis Spath, 1921 Kossmaticeras (Natalites) canadense McLearn, 1972
Distribution Fossils of species within this genus have been found in the Cretaceous sediments of Antarctica, Australia, Canada, Chile, India, Madagascar, New Zealand and South Africa.
References
Further reading Arkell et al. 1957. Mesozoic Ammonoidea, L374; Treatise on Invertebrate Paleontology Part L (Ammonoidea); Geol Soc of America and Univ Kansas Press.