 | Ctenoceras schmidti Noetling, 1884 |
Taxon description
Kröger & Isakar, 2006
Diagnosis. Ctenoceras with irregularly spaced annulations, with two to four annulations at a length equal to the diameter of the conch. Two or three ridges of the annulations occur between two subsequent suture lines. Apical angle between 2 and 7°. Adult dorsoventral shell diameter about 17 mm.
Type specimen data
MB.C. 9111 ,
Synonymy list
1877
Orthoceras verticillatum v. Hagenow — Krause, pp. 24-25
1880
Cycloceras hisingeri Boll — Schröder, pp. 62
1884
Ctenoceras schmidti sp. nov. — Noetling, pp. 116-122, fig. 16:7,8; 18:3-5a
1931
Ctenoceras schmidti Noetling — Troedsson, pp. 16
1962
Ctenoceras schmidti Noetling — Balashov & Zhuravleva, fig. 11:8
1964
Ctenoceras schmidti Noetling — Sweet, pp. 255, fig. 155:1a-c
1971
Ctenoceras schmidti Noetling — Neben & Krüger, pp. 17, fig. 14-15
1973
Ctenoceras schmidti Noetling — Neben & Krüger, pp. 81, fig. 14-17
1984
Ctenoceras schmidti Noetling — Dzik, pp. 97, 105, fig. 39, 66
2004
Ctenoceras schmidti Noetling, 1884 — Kröger, pp. 63, fig. 11A
2006
Ctenoceras schmidti Noetling, 1884 — Kröger & Isakar, pp. 145, fig. 7A-J, 8F
Selection of related publications
Kröger, B. 2007.
Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia. Acta Palaeontologica Polonica 52,
3, 591-608.
Kröger, B. 2004.
Revision of Middle Ordovician orthoceratacean nautiloids from Baltoscandia. Acta Palaeontologica Polonica 49,
1, 57-74.
References based on distribution