Gatunek typowy
Terebratulites sarcinulatus Von Schlotheim, 1820; Devonian, Germany

Opis

Shell with profile from almost planoconvex to moderately concavoconvex; beak small and narrow; ventral interarea apsacline and dorsal hypercline; pseudodeltidium, chilidium present; spines low angled, orthomorph oblique geniculate and symmetrically arranged; ventral interior with long, narrow median septum; strong laterally elongate hinge teeth obliquely placed; teeth sockets longitudinally striate; dorsal interior with long, narrow median septum supporting cardinal process; short, posteriorly curved inner socket ridges.

Synonimy

Zasięg czasowy

Early Devonian (Pragian to Emsian): Europe

Literatura