The Ptychitidae is a family of ceratitidammonites (ammonites sensu lato). They are combined with the Eosagenitidae and Sturiidae in the superfamily Ptychitoidea.
Ptychitid genera have compressed, involute shells in which the inner whorls are covered by the outermost, that may be ribbed or smooth, and ammonitic sutures with secondary elements.
Arkell, et al., 1957. Mesozoic Ammonoidea, in theTreatise on Invertebrate Paleontology, Part L . R. C.Moore (ed). Geological Society of America and Univ of Kansas press.
Ptychitidae-Paleodb
classification of E.T. Tozer, 1994
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ptychitidae, family, ceratitid, ammonites, ammonites, sensu, lato, they, combined, with, eosagenitidae, sturiidae, superfamily, ptychitoidea, temporal, range, triassicfossil, ptychites, studeri, from, bosnia, display, galerie, paléontologie, anatomie, comparée. The Ptychitidae is a family of ceratitid ammonites ammonites sensu lato They are combined with the Eosagenitidae and Sturiidae in the superfamily Ptychitoidea PtychitidaeTemporal range M U TriassicFossil of Ptychites studeri from Bosnia on display at Galerie de paleontologie et d anatomie comparee in ParisScientific classificationDomain EukaryotaKingdom AnimaliaPhylum MolluscaClass CephalopodaSubclass AmmonoideaOrder CeratitidaSuperfamily PtychitoideaFamily PtychitidaeMojsisovics 1882Ptychitid genera have compressed involute shells in which the inner whorls are covered by the outermost that may be ribbed or smooth and ammonitic sutures with secondary elements Genera editArctoptychites Aristoptychites Eosturia Flexoptychites Istreites Lanceoptychites Malletoptychites PtychitesReferences editArkell et al 1957 Mesozoic Ammonoidea in the Treatise on Invertebrate Paleontology Part L R C Moore ed Geological Society of America and Univ of Kansas press Ptychitidae Paleodb classification of E T Tozer 1994 nbsp This Ceratitida related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Ptychitidae amp oldid 1166000030, wikipedia, wiki, book, books, library,
