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Kosmermoceras
Taxonomy
Kosmermoceras was named by Arkell (1952) [Sepkoski's age data: J Bajo-u]. Its type is Ermoceras (Kosmermoceras) runcinatum.
It was reranked as Ermoceras (Kosmermoceras) by Arkell (1952).
It was assigned to Ermoceras by Arkell (1952); to Stephanoceratidae by Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).
It was reranked as Ermoceras (Kosmermoceras) by Arkell (1952).
It was assigned to Ermoceras by Arkell (1952); to Stephanoceratidae by Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).
Synonymy list
Year | Name and author |
---|---|
1952 | Ermoceras (Kosmermoceras) Arkell p. 273 |
1952 | Kosmermoceras Arkell p. 273 |
1957 | Kosmermoceras Arkell et al. p. 290 |
2002 | Kosmermoceras Sepkoski |
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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. †Kosmermoceras Arkell 1952
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†Ermoceras (Kosmermoceras) aulacostephanus Arkell 1952
†Ermoceras (Kosmermoceras) elegans Douvillé 1916
†Ermoceras (Kosmermoceras) magnificum Arkell 1952
†Ermoceras (Kosmermoceras) runcinatum Arkell 1952
†Ermoceras (Kosmermoceras) strigatum Arkell 1952
Diagnosis
No diagnoses are available