Erinaceaster tenuispinosus Lehmann, 1957

By oilshale

• January 10, 2022

Taxonomy

Kingdom: Animalia
Phylum: Echinodermata Klein, 1754
Class: Asterozoa von Zittel, 1895
Order: Stenurida (Spencer, 1951)
Family: Pradesuridae Spencer, 1951
Genus: Erinaceaster
Species: Erinaceaster tenuispinosus
Author Citation Lehmann, 1957

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

Diameter: 20.5 cm

Location

Eschenbach-Bocksberg Quarry
Bundenbach
Rheinland-Pfalz
Germany

• bundenbach
• emsian
• erinaceaster
• eriniceaster
• hunsrück slate group
• kaub formation
• tff-oilshale-ec1828

Comments

Eriniceaster tenuispinosus Lehmann 1957 is a homotypic synonym of Erinaceaster tenuispinosus Lehmann 1957

Taxonomy from GBIF.org

From Südcamp 2017, p. 127: "The disc and arms on the dorsal surface are covered with a distended, granular, spine bearing skin. The spines are elongate and needle-like. The high domed body has been transformed into a fringe around the five  lancet-shaped arms by later flattening. The mouth frame is large and stellate and the mouth-angle plates are triangular. The small madreporite has an oral position. The ambulacrals are either opposite or alternating and smooth L-shaped. Together with the sickle-shaped laterals they have the outline of a low W. They bear a row of nodules each bearing an elongate slender spine. The ambulacral groove is wide."

Identified by oilshale using Südcamp 2017.

References:

Lehmann, W. M. (1957) Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung, 21, 160 p.

Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.