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Arkacrinus
Taxonomy
Arkacrinus was named by Knapp (1969) [Sepkoski's age data: C Bash-u]. It is not extant.
It was assigned to Arkacrinidae by Moore and Strimple (1973); and to Cladida by Sepkoski (2002).
It was assigned to Arkacrinidae by Moore and Strimple (1973); and to Cladida by Sepkoski (2002).
Species
Synonymy list
Year | Name and author |
---|---|
1969 | Arkacrinus Knapp p. 357 |
1973 | Arkacrinus Moore and Strimple |
2002 | Arkacrinus 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. †Arkacrinus Knapp 1969
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†Arkacrinus constrictus Moore and Strimple 1973
†Arkacrinus dubius Mather 1915
Diagnosis
No diagnoses are available