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Hemicosmorthoceras
Taxonomy
Hemicosmorthoceras was named by Ristedt (1968) [Sepkoski's age data: S Ludl-l Sepkoski's reference number: 524]. It is not extant.
It was assigned to Sphaerorthoceratidae by Kröger (2008).
It was assigned to Sphaerorthoceratidae by Kröger (2008).
Species
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1968 | Hemicosmorthoceras Ristedt |
2008 | Hemicosmorthoceras Kröger |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Hemicosmorthoceras Ristedt 1968
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†Hemicosmorthoceras aichae Kröger 2008
†Hemicosmorthoceras dimidiatum Sowerby in Murchinson 1839
†Hemicosmorthoceras laterculum Ristedt 1968
†Hemicosmorthoceras semimbricatum Gnoli 1982
Diagnosis
No diagnoses are available