†family Oecoptychiidae Arkell 1957 (ammonite)
Cephalopoda - Ammonitida - Oecoptychiidae
Full reference: W. J. Arkell. 1957. Taxonomic names. Treatise on Invertebrate Paleontology, Part L, Mollusca 4, Cephalopoda - Ammonoidea 1-490
Parent taxon: Stephanocerataceae according to W. J. Arkell et al. 1957
Sister taxa: Cardioceratidae, Macrocephalitidae, Otoitidae, Sphaeroceratidae, Stephanoceratidae, Tulitidae
Subtaxa: Oecoptychius Protophites
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of France (8 collections), Germany (2), Madagascar (4)
Total: 14 collections each including a single occurrence