Oecoptychius
Template:Short description Template:Italic title Template:Taxobox/core Oecoptychius is an extinct genus of fossil ammonite cephalopods. The species lived during the Middle Jurassic.[1]
Taxonomic position
Oecophtychius was named by NeumayrScript error: No such module "Unsubst". in 1878. It is placed into Oecoptychitidae, a family of dwarf ammonites established by ArkellScript error: No such module "Unsubst"., 1957, that is a part of the superfamily Stephanoceratoidea.Script error: No such module "Unsubst".
Diagnosis
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.Script error: No such module "Unsubst".
Distribution
Fossils of the Oecophtychius species have been found in Jurassic sediments of France, Germany and Madagascar.[2]
References
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- W.J. Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geological Society of America and University of Kansas Press.