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Calclyra gracilis

Ophiuroidea

Taxonomy
Calclyra gracilis was named by Kozur and Mostler (1989). It is considered to be a form taxon. Its type specimen is Holotype KoMo 1988 1-6/IV-64, Institute of Geology and Paleontology, Innsbruck and is a 3D body fossil. Its type locality is Rupe del Passo di Burgio, Sosio Valley, which is in a Wordian offshore limestone in Italy.

Synonymy list
YearName and author
1989Calclyra gracilis Kozur and Mostler p. 679 figs. pl. 1 fig. 6

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumEleutherozoa
Asterozoa()
classOphiuroidea
genusCalclyra
speciesgracilis

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.

Calclyra gracilis Kozur and Mostler 1989
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Diagnosis
ReferenceDiagnosis
H. Kozur and H. Mostler 1989Shaft circular, of different length. Basal sockel distinct, with excentric opening. Distal part of shaft widened, but flattened. Head with 3 rays that run over most of the distance subparallel. All 3 rays strongly upward-bended from the plane of the shaft in the lower third of the head and then with almost 90° downward-bended so that the whole spine is angular in lateral view. The middle ray reaches about to the middle part of the head, where it is connected as a keel with the thin, but broad, distally widened median part of the head. In continuation of the keel a narrow furrow can be often observed. Distally two very narrow parallel pores are present in the median
part of the head. The upper end of the head is broadly rounded or blunt. The two cavae are long and broadest in their lower part. A second type of cavate spines of the same species has only a very short shaft and a short, broad head of oval to nearly subcircular outline, broadest in the lower third or middle part and in its upper part broadly rounded to blunt.