“Oecoptychius”的意思、由来-开放百科全书

词条

Oecoptychius

释义

Taxonomic position
Diagnosis
Distribution
References

{{italic title}}{{Taxobox
|name = Oecoptychius
|fossil_range = {{fossil range|Bajocian|Callovian|ref=^[1]}}
|regnum = Animalia
|phylum = Mollusca
|classis = Cephalopoda
|subclassis = Ammonoidea
|ordo = Ammonitida
|superfamilia = Haploceratoidea
|familia = Strigoceratidae
|genus = Oecoptychius
}}Oecoptychius is an extinct genus of fossil ammonite cephalopods. The species lived during the Middle Jurassic.^[2]

Taxonomic position

Oecophtychius was named by Neumayr{{who|date=March 2015}} in 1878. It is placed into Oecoptychitidae, a family of dwarf ammonites established by Arkell{{who|date=March 2015}}, 1957, that is a part of the superfamily Stephanoceratoidea.{{citation needed|date=March 2015}}

Diagnosis

Oecoptychius is an eccentrically coiled, dwarf ammonite. Inner whorls smooth, spheroidal; outer whorls with fine biplicate rbbing, ventral groove, and an acute elbow at half a whorl before the aperture; peristome contracted, with outwardly directed lappets.{{citation needed|date=March 2015}}

Distribution

Fossils of the Oecophtychius species have been found in Jurassic sediments of France, Germany and Madagascar.^[3]

References

1. ^{{cite web |last= Sepkoski |first= Jack |title=Sepkoski's Online Genus Database |year= 2002 |url= http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class| accessdate = 2014-05-28 }}
2. ^{{cite web |last= Sepkoski |first= Jack |title=Sepkoski's Online Genus Database |year= 2002 |url= http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class| accessdate = 2014-05-28 }}
3. ^{{cite web | title= Fossilworks.org - Oecoptychius |url=http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=15276 |accessdate= 2014-05-28 }}

W.J. Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geological Society of America and University of Kansas Press.

4 : Ammonitida genera|Haploceratoidea|Jurassic ammonites|Prehistoric animals of Madagascar

随便看

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。