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Ajacicyathus
Taxonomy
Ajacicyathus was named by Bedford and Bedford (1939) [Sepkoski's age data: Cm Atda-l Cm Tojo-l Sepkoski's reference number: 1243].
It was assigned to Ajacicyathida by Sepkoski (2002); and to Ajacicyathidae by Kerner et al. (2011).
It was assigned to Ajacicyathida by Sepkoski (2002); and to Ajacicyathidae by Kerner et al. (2011).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1939 | Ajacicyathus Bedford and Bedford |
| 2002 | Ajacicyathus Sepkoski |
| 2011 | Ajacicyathus Kerner et al. p. http://archaeocyatha.infosyslab.fr/gener |
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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. †Ajacicyathus Bedford and Bedford 1939
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†Ajacicyathus crassus Debrenne 1961
†Ajacicyathus nevadensis Okulitch 1943
†Ajacicyathus yukonensis Kawase and Okulitch 1957
Diagnosis
No diagnoses are available