''Kingoceras'' is a genus of

ammonoid Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ...

s in the order

Ceratitida Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammoni ...

and family

Paraceltitidae Paraceltitidae is a family of Middle and Upper Permian cephalopods, that comprise the earliest of the Ceratitida. Paraceltitidids have variably ribbed, discoidally evolute shells with compressed elliptical whorl sections and simple suture lines. ...

which lived during the

Late Permian Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effect, ...

from about 265 to about 254 million years ago. The shell is thinly lenticular, sutures are goniatitic and have only eight fully distinct lobes. Two species are recognized. The type, ''Kingoceras kingi'' Miller 1944 comes from the Permian of state of Coahuila, Mexico, from concretionary shale and limestone of the La Difunta Formation and from offshore sandstone and mudstone of the La Colorada Formation. A second species, ''Kingoceras achurense'', named by Zakharov 1983, is included, which comes from the Upper Permian Akhura Formation of Azerbaijan.

References

GONIAT -online ''Kingoceras'' entry

The Paleobiology Database ''Kingoceras'' entry
Paraceltitidae Ceratitida genera Permian ammonites Fossils of Mexico {{Ceratitida-stub