Species

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.

Synonyymit
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
Aiheeseen liittyvät julkaisut
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.
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Luokittelu
Organism groupBiota
KingdomAnimalia
PhylumMollusca
ClassCephalopoda
SubclassOrthoceratia
OrderOrthocerida
SuborderOrthoceratina
FamilyOrthoceratidae
SubfamilyOrthoceratinae
GenusCtenoceras
Speciesschmidti
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