Taxonomic position
''Oecophtychius'' was named by Neumayr in 1878. It is placed into Oecoptychitidae, a family of dwarf ammonites established by Arkell, 1957, that is a part of the superfamilyDiagnosis
''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.Distribution
Fossils of the ''Oecophtychius'' species have been found in Jurassic sediments of France, Germany and Madagascar.References
* W.J. Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geological Society of America and University of Kansas Press. Ammonitida genera Haploceratoidea Jurassic ammonites Prehistoric animals of Madagascar {{ammonitina-stub