{{Short description|Extinct genus of molluscs}} {{Use dmy dates|date=April 2022}} {{Automatic taxobox | fossil_range = {{fossil range|Carnian|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| accessdate = 28 May 2014 }}</ref>}} | image = Trachyceras fossil at NMMNHS.jpg | image_caption = ''Trachyceras'' fossil at the New Mexico Museum of Natural History and Science | taxon = Trachyceras | authority = Laube 1869 | subdivision_ranks = Species | subdivision_ref = <ref name="paleodb">[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=100981 Paleobiology Database - Austrotrachyceras]. 29 May 2014.</ref> | subdivision = }}
'''''Trachyceras''''' is a genus of ammonoid cephalopods belonging to the order Ceratitida. The type species is ''Trachyceras aon'', which was first described by Georg zu Münster in 1834 as a species of ''Ceratites''. The genus includes many species found in Afghanistan, Bosnia and Herzegovina, Canada, China, Germany, Hungary, India, Indonesia, Italy, the Russian Federation, Slovenia, and the United States.
The family to which ''Trachyceras'' belongs, the Trachyceratidae, has more or less involute, highly ornamented shells and ceratitic to ammonitic sutures.
==References== ;Notes {{Reflist}} ;Bibliography * {{cite book| first1=W.J. |last1=Arkell |first2=B. |last2=Kummel |first3=C.W. |last3=Wright |series=Treatise on Invertebrate Paleontology, Part L, Mollusca 4| title=Mesozoic Ammonoidea | publisher=Geological Society of America and University of Kansas Press |location=Lawrence, Kansas|year=1957}}
==External links== {{Commons category-inline|Trachyceras}}
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Category:Trachyceratidae Category:Triassic ammonites Category:Carnian genera Category:Fossils of British Columbia Category:Fossils of China Category:Fossils of Italy Category:Fossils of Germany Category:Fossils of India Category:Fossil taxa described in 1869 Category:Prehistoric cephalopod genera Category:Ceratitida genera
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