''Kamerunoceras'' is an extinct cephalopod genus belonging to the ammonite family Acanthoceratidae, found in

Upper Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger 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 ''creta'', th ...

formations ( Cenomanian to

Turonian The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series. It spans the time between 93.9 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago). The Turonian is preceded b ...

age) of Africa, Europe and North and South America.

Description

''Kamerunoceras'', named by R.A. Reyment in 1954, was tentatively included in the acanthoceratid subfamily

Mammitinae Mammitinae comprises a subfamily within the Acanthoceratidae (Ammonoidea) characterized by moderately to very evolute shells with rectangular to squarish whorl sections along with blunt umbilical and prominent inner and outer ventrolateral tuberc ...

in W.J. Arkell, ''et al'' (1957), but has since been combined with '' Euomphaloceras'', previously of the Acanthoceratinae ''ibid'', in the Euomphaloceratinae.Cooper, 1978 ''Kamerunoceras'' is described as being very evolute with a rectangular whorl section and umbilical tubercles only in the middle growth section. Ventrolateral tubercles, found mostly throughout, are spinose. Ribs are irregular, straight at first, becoming denser and sigmoid on the outer whorl.Arkell, 1957

Species

The following species of ''Kamerunoceras'' have been described:''Kamerunoceras'' species
/ref> * ''K. andinum'' Renz, 1982 * ''K. antsaronense'' Collignon, 1965 * ''K. calvertense'' Powell, 1963 * ''K. douvillei'' (Pervinquière, 1907) * ''K. eschii'' (Solger, 1904) * ''K. ganuzai'' Wiedmann, 1960 * ''K. inaequicostatus'' Wiedmann, 1960 * ''K. isovokyense'' Collignon, 1965 * ''K. lecointrei'' Collignon, 1966 * ''K. puebloense'' Cobban & Scott, 1972 * ''K. salmuriensis'' Courtiller, 1867 * ''K. schindewolfi'' Collignon, 1965 * ''K. tinrhertense'' Collignon, 1965 * ''K. turoniense'' D'Orbigny, 1850

Distribution

Fossils of ''Kamerunoceras'' have been found in Austria, Brazil, Cameroon, Colombia ( La Frontera and San Rafael Formations),Patarroyo & Rojas, 2007, pp.92-93Patarroyo, 2016, p.41 Egypt, France, Mexico, Nigeria, Romania, Tunisia, United States (Arizona, New Mexico, Texas, Utah), Venezuela.''Kamerunoceras''
at Fossilworks.org

References

Bibliography

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Description

Species

Distribution

References

Bibliography

Further reading