Oecoptychius Temporal range:
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Genus: | Oecoptychius
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Oecoptychius is an extinct genus of fossil ammonite cephalopods. The species lived during the Middle Jurassic. [1]
Oecophtychius was named by Neumayr[ who?] in 1878. It is placed into Oecoptychitidae, a family of dwarf ammonites established by Arkell[ who?], 1957, that is a part of the superfamily Stephanoceratoidea.[ citation needed]
Oecoptychius is an eccentrically coiled, dwarf ammonite. Inner whorls smooth, spheroidal; outer whorls with fine biplicate ribbing, ventral groove, and an acute elbow at half a whorl before the aperture; peristome contracted, with outwardly directed lappets.[ citation needed]
Fossils of the Oecophtychius species have been found in Jurassic sediments of France, Germany and Madagascar. [2]
This article includes a list of general
references, but it lacks sufficient corresponding
inline citations. (March 2015) |
Oecoptychius Temporal range:
| |
---|---|
Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
Subclass: | |
Order: | |
Superfamily: | |
Family: | |
Genus: | Oecoptychius
|
Oecoptychius is an extinct genus of fossil ammonite cephalopods. The species lived during the Middle Jurassic. [1]
Oecophtychius was named by Neumayr[ who?] in 1878. It is placed into Oecoptychitidae, a family of dwarf ammonites established by Arkell[ who?], 1957, that is a part of the superfamily Stephanoceratoidea.[ citation needed]
Oecoptychius is an eccentrically coiled, dwarf ammonite. Inner whorls smooth, spheroidal; outer whorls with fine biplicate ribbing, ventral groove, and an acute elbow at half a whorl before the aperture; peristome contracted, with outwardly directed lappets.[ citation needed]
Fossils of the Oecophtychius species have been found in Jurassic sediments of France, Germany and Madagascar. [2]
This article includes a list of general
references, but it lacks sufficient corresponding
inline citations. (March 2015) |