{{Short description|Genus of extinct molluscs}} {{Automatic taxobox | fossil_range = {{Fossilrange|93.9|66.043|Late Cretaceous}}<ref name=fa>[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=15086 The Paleobiology Database]</ref> Late Turonian to Late Maastrichtian | image = Kossmaticeratidae - Kossmaticeras species.JPG | image_caption = ''Kossmaticeras'' species from Madagascar | taxon = Kossmaticeras | authority = de Grossouvre, 1901 | synonyms = * ''Kossmaticeras (Madrasites)'' <small>Kilian and Reboul, 1909</small> * ''Madrasites'' <small>Kilian and Reboul, 1909</small> }}
'''''Kossmaticeras''''' is an extinct ammonoid genus belonging to the desmoceratacean family Kossmaticeratidae. Species in this genus were fast-moving nektonic carnivores.<ref name=fa/> They lived during the Late Cretaceous, from the upper Turonian to the upper Maastrichtian ages.<ref name=fb>Sepkoski, Jack [http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class Sepkoski's Online Genus Database – Cephalopoda]</ref> The type species of the genus is ''K. theobaldianus''.<ref name=fa/>
== Subgenera and species == <ref name=fa/> * ''Kossmaticeras (Karapadites)'' <small>Collignon, 1954</small> ** ''Kossmaticeras (Karapadites) besairieri'' <small>Collignon, 1954</small> ** ''Kossmaticeras (Karapadites) karapadensis'' <small>Kossmat, 1897</small> ** ''Kossmaticeras (Karapadites) madrasinus'' <small>Stoliczka, 1865</small> ** ''Kossmaticeras (Karapadites) planissimus'' <small> Collignon, 1966</small> * ''Kossmaticeras (Kossmaticeras)'' <small>de Grossouvre, 1901</small> ** ''Kossmaticeras (Kossmaticeras) inornatum'' <small>Collignon, 1966</small> ** ''Kossmaticeras (Kossmaticeras) jeletzkyi'' <small>Collignon, 1965</small> ** ''Kossmaticeras (Kossmaticeras) jonesi'' <small>Collignon, 1965</small> ** ''Kossmaticeras (Kossmaticeras) kilenensis'' <small>Alsen, 2018</small> ** ''Kossmaticeras (Kossmaticeras) sakondryense'' <small>Collignon, 1954</small> ** ''Kossmaticeras (Kossmaticeras) sparsicostatum'' <small>Kossmat, 1897</small> ** ''Kossmaticeras (Kossmaticeras) theobaldianum'' <small>Stolickza, 1865</small> * ''Kossmaticeras (Natalites)'' <small>Collignon, 1954</small> ** ''Kossmaticeras (Natalites) africanus'' <small>van Hoepen, 1920</small> ** ''Kossmaticeras (Natalites) elegans'' <small>Kennedy, 1985</small> ** ''Kossmaticeras (Natalites) similis'' <small>Spath, 1921</small> ** ''Kossmaticeras (Natalites) canadense'' <small>McLearn, 1972</small>
== 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 == {{Reflist}}
== Further reading == * Arkell ''et al.'' 1957. Mesozoic Ammonoidea, L374; Treatise on Invertebrate Paleontology Part L (Ammonoidea); Geol Soc of America and Univ Kansas Press.
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Category:Desmoceratoidea Category:Ammonitida genera Category:Cretaceous ammonites Category:Ammonites of Australia Category:Ammonites of South America Category:Cretaceous Africa Category:Cretaceous Asia Category:Cretaceous animals of Australia Category:Cretaceous Canada Category:Cretaceous Chile
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