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Guizhoueocrinus yui ZHAO, PARSLEY & PENG, 2007
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By oilshale (edited)
Taxonomy
Eocrinoid
Kingdom: Animalia
Phylum: Echinodermata
Class: Eocrinoidea Jaekel, 1918
Order: Gogiida Broadhead, 1982
Family: Eocrinidae Jaekel, 1918
Genus: Guizhoueocrinus
Species: Guizhoueocrinus yui
Author Citation ZHAO, PARSLEY & PENG, 2007
Geological Time Scale
Eon: Phanerozoic
Era: Paleozoic
Period: Cambrian
Sub Period: None
Epoch: Series 2 Epoch
Stratigraphy
Balang Formation
Provenance
Acquired by: Purchase/Trade
Dimensions
Length: 2 cm
Location
Xiasi
Kaili City
Guizhou Province
China
Comments
Taxonomy from Zhao et al. 2007.
Diagnosis from Zhao et al. 2007, p. 323: "Gogiid with clavate theca, 11 to 13 irregular circlets of variously polygonal plates. Sutural pores variable in number, more common on upper thecal plates, circular to elliptical, relatively small and with well-defined rims. Stalk conical, long, intercalates commonly form rosettes around older stem plates. Attachment disk, flattened and only slightly wider than distal end of stalk. Mature specimens with ten long paired coiled brachioles in 2-1-2 primary ambulacral split configuration."
References:
Y.-L. Zhao, R. L. Parsley, and J. Peng. 2007. Early Cambrian eocrinoids from Guizhou Province, South China. Palaeogeography, Palaeoclimatology, Palaeoecology 254:317-327
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