Gatunek typowy

Opis

Type species: Carinathilda carinata Gründel, 1997. Bathonian (Mid Jurassic), Kłęby borehole, Poland.
Protoconch hyperstrophic, highly medioaxial to almost coaxial, smooth or, in some species,  with adapical and abapical, axial folds. Teleoconch  broadly  cone−shaped. First teleoconch whorl with two spiral ribs of which abapical one makes distinct angulation of whorls and changing into keel. Number of spiral ribs may increase during ontogeny. Spiral ribs crossed by weaker axial ribs or threads, at rib intersections, with or without weak nodes. Teleoconch surface covered with spiral microornamentation.

Synonimy

Zasięg czasowy

Late Triassic to Late Cretaceous.

Literatura

Gründel, J. 1997a. Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. I. Mathildoidea (Mathil−didae). Berliner Geowissenschaftliche Abhandlungen, Reihe E25, 131–175.

Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183