Kossmaticeratidae is an extinct

ammonoid Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family N ...

family belonging to the order

Ammonitida Ammonitida, or true ammonites, are an order of Ammonoidea, ammonoid cephalopods that lived from the Jurassic through Paleocene time periods, commonly with intricate ammonitic sutures. Ammonitida is divided into four suborders, the Phylloceratina ...

Subfamilies and genera

Kossmaticeratidae includes two subfamilies and eight genera: * Kossmaticeratinae

Spath Spath is a small village located north of Uttoxeter, Staffordshire, England. The village is on the River Tean and is separated from Uttoxeter by the A50 road. History In UK railway history, Spath was on the now disused Churnet Valley Lin ...

, 1922 ** '' Grossouvrites''

Kilian Killian or Kilian, as a given name, is an English language, Anglicized version of the Irish language, Irish name . The name was borne by several early Irish saints including missionaries to Artois (France) and Franconia (Germany) and the author ...

and Reboul, 1909 ** '' Gunnarites'' Kilian and Reboul, 1909 ** '' Kossmaticeras'' de Grossouvre, 1901 ** '' Maorites'' Marshall, 1926 ** '' Pseudokossmaticeras'' Spath, 1922 * Marshallitinae Matsumoto, 1955 ** '' Eomarshallites'' Medina and Rinaldi, 1986 ** '' Marshallites'' Matsumoto, 1955 ** '' Yokoyamaoceras'' Wright and Matsumoto, 1954

Distribution

Fossils of members within this family have been found in the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...

sediments of Antarctica, Argentina, Australia, Austria, Belgium, Canada, Chile, France, India, Japan, Madagascar, New Zealand, South Africa, United States as well as in the

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...

of the United Kingdom.

References

* Arkell ''et al.'', 1957. Mesozoic Ammonoidea, L374;

Treatise on Invertebrate Paleontology The ''Treatise on Invertebrate Paleontology,'' published from 1953–2007 by the Geological Society of America and the University of Kansas, then 2009–present by the University of Kansas Paleontological Institute, is a definitive multi-authore ...

Part L (Ammonoidea); Geol Soc of America and Univ Kansas Press. Ammonitida families Oxfordian first appearances Maastrichtian extinctions Desmoceratoidea {{Ammonitina-stub