Rodzaj Kazakhoceras Ruzhencev, 1947

Gatunek typowy
Kazakhoceras yanshini Ruzhentsev, 1947

Opis

Shell flat disk shaped; external side sharpened; umbilicus closed in all stages; ornamentation with fine, strongly biconvex and rectiradial growth lines; some species with widely spaced spiral stripes; lobe line with external lobe subdivided into secondary lobes; converging median saddle and a strongly converging ventrolateral saddle.

Synonimy
Neodimorphoceras Schmidt, 1925; Berkhoceras Librovitch, 1957

Zasięg czasowy

Early Carboniferous to Late Carboniferous (Late Mississippian to Late Pennsylvanian).

Literatura

Ruzhencev, V.E. 1957. Verkhnekamennougolnye ammonoidei v Sredney Asii. Doklady Akademii Nauk SSSR 114 (4): 889-892.

Specyfikacja

Królestwo
ANIMALIA 

Typ
MOLLUSCA

Podtyp
CONCHIFERA

Gromada
CEPHALOPODA

Podgromada
AMMONOIDEA

Rząd
Goniatitida

Podrząd
Goniatitina

Rodzina
Berkhoceratidae

Rodzaj
Kazakhoceras


Tags:
Utworzone 2016/07/19 15:17 przez Jerzy Dzik

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