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Arachnocrinus

Crinoidea - Cyathocrinida - Crotalocrinitidae

Taxonomy
Arachnocrinus was named by Meek and Worthen (1866) [Sepkoski's age data: D Eife]. It is not extant.

It was assigned to Crotalocrinitidae by Ubaghs et al. (1978); and to Cladida by Sepkoski (2002).

Synonymy list
YearName and author
1866Arachnocrinus Meek and Worthen
1978Arachnocrinus Ubaghs et al. p. T591
2002Arachnocrinus Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumBlastozoa
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
RankNameAuthor
infraclassInadunata(Wachsmuth and Springer 1897)
Cladida(Moore and Laudon 1943)
Eucladida
superorderCyathoformes
orderCyathocrinida(Bather 1899)
superfamilyGasterocomoidea(Roemer 1854)
familyCrotalocrinitidaeBassler 1938
genusArachnocrinusMeek and Worthen 1866

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. †Arachnocrinus Meek and Worthen 1866
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Diagnosis
No diagnoses are available