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Orthogonocrinus
Taxonomy
Orthogonocrinus was named by Peck (1943) [Sepkoski's age data: K Albi K Coni]. Its type is Orthogonocrinus apertus.
It was assigned to Roveacrinida by Sepkoski (2002); and to Roveacrinidae by Rasmussen (1961), Hess and Messing (2011) and Gale and Matrion (2021).
It was assigned to Roveacrinida by Sepkoski (2002); and to Roveacrinidae by Rasmussen (1961), Hess and Messing (2011) and Gale and Matrion (2021).
Species
O. apertus (type species), O. janeti (syn. O. excavatus)
Synonymy list
Year | Name and author |
---|---|
1943 | Orthogonocrinus Peck p. 464 |
1961 | Orthogonocrinus Rasmussen p. 385 |
2002 | Orthogonocrinus Sepkoski |
2011 | Orthogonocrinus Hess and Messing p. 209 |
2021 | Orthogonocrinus Gale and Matrion p. 9 |
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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. †Orthogonocrinus Peck 1943
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†Orthogonocrinus apertus Peck 1943
†Orthogonocrinus janeti Valette 1917
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Invalid names: Orthogonocrinus excavatus Peck 1955 [synonym]
Diagnosis
No diagnoses are available