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Arkacrinidae
Taxonomy
Arkacrinidae was named by Knapp (1969). It is not extant.
It was assigned to Erisocrinacea by Moore and Strimple (1973).
It was assigned to Erisocrinacea by Moore and Strimple (1973).
Subtaxa
Synonymy list
Year | Name and author |
---|---|
1969 | Arkacrinidae Knapp p. 356 |
1973 | Arkacrinidae Moore and Strimple |
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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.
Fm. †Arkacrinidae Knapp 1969
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G. †Arkacrinus Knapp 1969
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†Arkacrinus constrictus Moore and Strimple 1973
†Arkacrinus dubius Mather 1915
Diagnosis
No diagnoses are available