“Austrotrachyceras”的意思、由来-开放百科全书

词条

Austrotrachyceras

释义

References

{{Italic title}}{{Taxobox
| fossil_range = {{fossil range|Carnian|ref=^[1]}}
| image =
| image_caption =
| regnum = Animalia
| phylum = Mollusca
| classis = Cephalopoda
| subclassis = Ammonoidea
| ordo = Ceratitida
| superfamilia = Clydonitaceae
| familia = Trachyceratidae
| genus = Austrotrachyceras
| genus_authority = Krystyn, 1978
| subdivision_ranks = Species ^[2]
| subdivision =

A. obesum

}}

Austrotrachyceras is a genus belonging to the extinct subclass of cephalopods known as ammonites. Specifically it belongs in the order Ceratitida.

The family to which Austrotrachyceras belongs, the Trachyceratidae, has more or less involute, highly ornamented shells and ceratitic to ammonitic sutures.

References

Notes

1. ^{{cite web | last = Sepkoski| first = Jack| title= Sepkoski's Online Genus Database|authorlink =| coauthors =| year = 2002| url = http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class| accessdate = 2014-05-28 }}
2. ^Paleobiology Database - Austrotrachyceras. 2014-05-29.

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}}

4 : Trachyceratidae|Triassic ammonites|Fossils of British Columbia|Carnian life

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