Arietites

{{Short description|Genus of molluscs (fossil)}} {{Italic title}} {{Use dmy dates|date=July 2020}} {{Automatic_taxobox |fossil_range = Early Jurassic, {{fossil range|Sinemurian|ref=<ref name="Sepkoski Ceph">{{cite web | last = Sepkoski| first = Jack| title= Sepkoski's Online Genus Database|author-link=| year = 2002| url = http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class|access-date= 28 May 2014 }}</ref>}} |image = Arietites bucklandi - Naturhistorisches Museum, Braunschweig, Germany - DSC05169.JPG |image_caption = ''Arietites bucklandi'' |taxon = Arietites |authority = Waagen, 1869 |synonyms = ''Coroniceras''? <small>Arkell, 1947</small><ref name=FWArietites>[ ''Arietites''] at Fossilworks.org</ref> }} thumb|right|''Arietites bucklandi'' fossil at the Geological Museum in Copenhagen

'''''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<ref>{{Cite book |last=Gorsel |first=J.T. Van |url=https://www.vangorselslist.com/pdf/BIG_X_Paleontology_7.pdf |title=BIBLIOGRAPHY OF THE GEOLOGY OF INDONESIA AND SURROUNDING AREAS |date=July 2018 |edition=7th |pages=33 |language=English}}</ref> * ''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 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'' Coroniceras ''.

== References == {{Reflist}}

== Further reading == * Arkell, et al. 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology. Geological Soc. of America and Univ. of Kansas Press.

Category:Jurassic ammonites Category:Ammonites of Asia Category:Ammonites of Europe Category:Ammonites of North America Arietites geometricus Category:Sinemurian life Category:Sinemurian genus first appearances Category:Ammonitida genera Category:Arietitidae