Cymoceras MCCALEB , 1964

Dernov, Vitaly, 2022, Late Bashkirian Ammonoids From The Mospyne Formation Of The Donets Basin, Ukraine, Fossil Imprint 78 (2), pp. 489-512 : 497

publication ID	https://doi.org/ 10.37520/fi.2022.021
DOI	https://doi.org/10.5281/zenodo.7545227
persistent identifier	https://treatment.plazi.org/id/03925E10-FFC1-425B-F287-D98EFA84FA68
treatment provided by	Felipe
scientific name	Cymoceras MCCALEB , 1964
status

Treatment

Genus Cymoceras MCCALEB, 1964 View in CoL

T y p e s p e c i e s. Cymoceras miseri MCCALEB, 1964 ; by original designation.

D i a g n o s i s. Genus of the family Neodimorphoceratidae with extremely discoidal conch; umbilicus is closed. Ornamented with broad dichotomous biconvex transverse ribs, which form a ventral sinus and lateral projection. Suture line has a very wide ventral lobe with asymmetrical branches; flanks of median saddle curved (after McCaleb 1964).

S p e c i e s i n c l u d e d. C. miseri MCCALEB, 1964 , Arkansas ( USA); C. otai NISHIDA et KYUMA, 1982 , Akiyoshi ( Japan).

S t r a t i g r a p h i c r a n g e. Late Bashkirian.