Edited by oilshale
- 1
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By oilshale (edited)
Brittle Star
Kingdom: Animalia
Eon: Phanerozoic
Era: Paleozoic
Period: Devonian
Sub Period: None
Epoch: Early
International Age: Emsian (early)
Hunsrück Slate Group
Kaub Formation
Herrenberg Member
Date Collected: 05/01/2018
Acquired by: Purchase/Trade
Diameter: 4 cm
heap pile "Grube Herrenberg"
Bundenbach
Rhineland-Palatinate
Germany
The old name for this very common Ophiuroid is Taeniaster beneckei.
Taxonomy from Fossilworks.org.
Description from Südkamp 2017, p. 135: "The mouth-angle plates are slender and abut to form a characteristic V-shape. The disc is constructed of oval-shaped scale-like plates held together by a reticulated pattern of granular skin. The interradial margin is concave or rounded and lacks marginal plates. The proximal ambulacral furrow is broad. The five arms taper evenly into long whip-like tips. A finely granular skin covers the dorsal surface of the arms. The ambulacrals are alternating, unfused and boot-shaped. The foot is only slightly longer than the top of the boot. The laterals are crescent shaped and ear-like. They bear up to five groove spines and five evenly tapering vertical spines, the oral-most one is the longest. The vertical spines decrease in length distally along the arms.
Identified by oilshale.
References:
Stürtz, B. (1886) Beitrag zur Kenntnis paläozoische Seesterne. Palaeontographica 32:75-98.
Südkamp, W. (2017): Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
Edited by oilshale
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