Rodzaj Nanoclymenia

Gatunek typowy
Clymenia nana Münster, 1842 probably from the lower part of Platyclymenia Stufe at Schübelhammer near Heinersreuth in Frankenwald.

Opis

Diagnosis. — Suture with rounded flank lobe with gently sinuous dorsal and more steep ventral slope; moderately evolute conch with rounded subtrapezoidal whorl cross section.

Remarks. — This is a connecting link between early clymenias with angular flank lobe and Costaclymenia with distinctly developed semicircular lobe of the suture. It is assumed here that the specimens of N. nana  are juveniles.

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 2006. The Famennian "Golden Age" of conodonts and ammonoids in the Polish part of the Variscan sea. Palaeontologia Polonica 63, 1-359.

Specyfikacja

Królestwo
ANIMALIA 

Typ
MOLLUSCA

Podtyp
CONCHIFERA

Gromada
CEPHALOPODA

Podgromada
AMMONOIDEA

Rząd
Clymeniida

Rodzina
Carinoclymeniidae

Rodzaj
Nanoclymenia


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Utworzone 2015/08/04 13:52 przez Jerzy Dzik

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