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Rhadinocrinus nanus (Roemer, 1862)
Images: 
By oilshale
Taxonomy
Crinoid
Kingdom: Animalia
Phylum: Echinodermata Klein 1754
Class: Crinoidea Miller 1821
Order: incertae sedis
Family: incertae sedis
Genus: Rhadinocrinus
Species: Rhadinocrinus nanus
Author Citation (Roemer, 1862)
Geological Time Scale
Eon: Phanerozoic
Era: Paleozoic
Period: Devonian
Sub Period: None
Epoch: Early
International Age: Emsian (early)
Stratigraphy
Hunsrück Slate Group
Kaub Formation
Provenance
Acquired by: Purchase/Trade
Dimensions
Length: 12 cm
Location
Eschenbach-Bocksberg Quarry
Bundenbach
Rhineland-Palatinate
Germany
Comments
Taxonomy from Mindat.org.
Description of the genus by Südkamp 2017, p. 114: "The small cup has the shape of a truncated cone. The ten, long, slender, widely spaced arms devide above the fourth primibranch in two main heterotomous branches. These bear short and slender, densely branched or widely spaced, armlets. The long and slender anal sack is often (repeatedly) curved. The stem is round."
References:
Roemer, C. F. (1862—1864). Neue Asteriden und Crinoiden aus Devonischem Dachschiefer von Bundenbach. — Palaeontogr., 9: 143—152, Taf. 23—29; Cassel.
Südkamp, W. (2017). Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
Sepkoski, J. J. Jr. (2002). A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560.
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