Encrinaster roemeri Schoendorf 1910

Taxonomy

Brittle star

Kingdom: Animalia
Phylum: Echinodermata Klein 1754
Class: Ophiuroidea Gray 1840
Order: incertae sedis
Family: Encrinasteridae Schuchert 1914
Genus: Encrinaster
Species: Encrinaster roemeri
Author Citation Schoendorf 1910

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: 5 cm

Location

Eschenbach-Bocksberg Quarry
Bundenbach
Rheinland-Pfalz
Germany

• aspidosoma
• bundenbach
• devonian
• encrinaster
• euzonosoma
• kaub formation
• tff-oilshale-ec2876

Comments

Taxonomy from Fossilworks.com.
Alternative combination: Aspidosoma roemeri.

Description from Südkamp, 2017, p. 134: "Encrinaster has many characteristics common with Euzonosoma. The differences are as follows. The elongated arms are strap-like, broadening distally until the disc edge and then tapering evenly as comparatively narrow arms to the arm tips. The interradial disc outline is convex to straight. The marginals are flat overlapping plates. The ambulacrals are more delicate, less rectangular than in Euzonosoma, and more sub-triangular in oral view."
Identified by oilshale using Südkamp 2017.

References:

Schöndorf, F. (1910) Palaeozoische Seesterne Deutschlands. II. Die Aspidosomatiden des deutschen Unterdevon. Palaeontographica 57:1-63.
Lehmann, W.M. (1957) Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung 21:1-160
Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.