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Polycosmites
Taxonomy
Polycosmites is a genus. It is not extant. It is the type genus of Polycosmitida, Polycosmitidae. It was considered unknown by Bernard (1895).
It was assigned to Caryocrinitidae by Bernard (1895); to Polycosmitidae by Beaver et al. (1967); and to Rhombifera by Sepkoski (2002).
It was assigned to Caryocrinitidae by Bernard (1895); to Polycosmitidae by Beaver et al. (1967); and to Rhombifera by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1895 | Polycosmites Bernard |
| 1967 | Polycosmites Beaver et al. p. S227 |
| 2002 | Polycosmites 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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. Bernard 1895 | A genus of Caryocrinitidae with multidisjunct cryptorhombs with a complex arrangement of perpendicular canals forming a rhomb-in-rhomb structure. Primary thecal plates arranged as in the Caryocrinitidae. Oral area unknown. |