''Arietites'' is a genus of massive, giant evolute, psiloceratacean ammonites in the family Arietitidae in which whorls are subquadrate and transversely ribbed and low keels in triplicate, separated by a pair of longitudinal grooves, run along the venter. Fossils are known world wide from the lower Sinemurian stage of the Lower Jurassic. Safari Ltd made an ''Arietites bucklandi'' figurine in 2014. Similar genera include '' Megarietites'' in which the keels are reduced and '' Epammonites'' in which the ribs are more closely spaced.

Species

* '' Arietites ablongaris'' * '' Arietites alcinoe'' Reynès, 1879 * '' Arietites anastreptoptychus'' Franz Wähner, 1891 (possibly a synonym of '' Paracaloceras subsalinarium''; Wähner) * '' Arietites bisulcatus'' * '' Arietites bonnardii'' Alcide Dessalines d’Orbigny, 1879 * '' Arietites brookei'' * '' Arietites bucklandi'' George Brettingham Sowerby, 1816 * '' Arietites crossi'' * '' Arietites gaudryi'' Reynès * '' Arietites geometricus'' Albert Oppe, 1856 * '' Arietites hettangiensis'' * '' Arietites isis'' * '' Arietites longicellus'' Friedrich August Quenstedt, 1858 * '' Arietites meigeni'', (possibly a synonym of '' Leptechioceras meigeni'') * '' Arietites meridionalis'' Reynès * '' Arietites obesulus'' J. F. Blake, 1876 * '' Arietites obtusus'' * '' Arietites pinguis'' * '' Arietites planaries'' Reynès, 1879 * '' Arietites quadratus'' E. Donovan, 1952 * '' Arietites radiatus'' C. T. Simpson, 1843 * '' Arietites retroversicostatus'' Canavari * '' Arietites rotiformis'' Sowerby * '' Arietites scunthorpense'' * '' Arietites semicostatus'' A. T. Young & Bird, 1828 * '' Arietites spiratissimus'' * '' Arietites subsalinarius'' Wähner, 1891, (possibly a synonym of '' Paracaloceras subsalinarium''; Wähner) * '' Arietites tenellus'' C. T. Simpson, 1855 * '' Arietites turneri'' * '' Arieties westfalicus'' Lange (possibly a synonym of ''

Coroniceras ''Coroniceras'' is a genus in the Arietitidae, a family in the ammonitid superfamily Psiloceratoidea, from the lower Sinermurian stage in the Lower Jurassic. It is a sub zone ammonite of the '' Arnioceras semicostatum'' Zone. ''Coroniceras'' ha ...

westfalicum'' Lange, 1925) * '' Arietites wichmanni'' August Rothpletz, 1892 Note: '' Arietites '' now only represents a purely morphological term. A revision of the genus is still pending, its representatives are therefore initially classified as '' Coroniceras (Arietites) '' under ''

''.

Species

References

Further reading