''Yezoites'' is an extinct genus of

ammonites 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 ...

placed in the family

Scaphitidae Scaphitidae is a family of extinct cephalopods belonging to the family of heteromorph ammonites (suborder Ancyloceratina). There is a possible fossil record of them being the last ammonites with fossils dating to the Danian of the Paleocene in D ...

. The genus is known lived during the

Upper Cretaceous The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''cret ...

and was first described in 1910.Fossilworks ''Yezoites'' entry 26 Nov 2017
/ref> The genus contains five species, ''Y. bladenensis'', ''Y. orbignyi'', ''Y. planus'', ''Y. puerculus'', and ''Y. subevolutus''. ''Yezoites'' was first discovered in the Upper Cretaceous

Yezo Group The Yezo Group is a stratigraphic group in Hokkaido, Japan and Sakhalin, Russia which is primarily Late Cretaceous in age (Aptian to Earliest Paleocene). It is exposed as roughly north–south trending belt extending 1,500 kilometres through centr ...

Hokkaido is the list of islands of Japan by area, second-largest island of Japan and comprises the largest and northernmost prefectures of Japan, prefecture, making up its own list of regions of Japan, region. The Tsugaru Strait separates Hokkaidō fr ...

, Japan and has since been identified in Antarctica, Denmark, France, Madagascar, and the United States. The shell has wide spaced ribbing.

References

Ammonitida genera Scaphitidae Cretaceous animals of Africa Coniacian genus first appearances Santonian genus extinctions {{Ammonitida-stub