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Anatifopsis styloidea DEHM, 1934
Images:
By oilshale
Taxonomy
Homolazoan
Kingdom: Animalia
Phylum: Echinodermata Klein 1754
Class: Stylophora Gill and Caster 1960
Order: Mitrata Jaekel 1918
Family: Kirkocystidae Caster 1952
Genus: Anatifopsis
Species: Anatifopsis styloidea
Author Citation DEHM, 1934
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
Width: 15 mm
Location
Eschenbach-Bocksberg Quarry
Bundenbach
Rheinland-Pfalz
Germany
- anatifopsis
- bundenbach
- carpoid
- dalejocystis
- devonian
- emsian
- hunsrück slate
- kaub formation
- mitrocystites
- ttf-oilshale-ec2135
Comments
Alternative names: Mitrocystites styloideus or Dalejocystis styloideus.
Taxonomy from Mindat.org.
Description (Südkamp 2017, p. 98): "The theca is roughly semicircular. It consists of two large thin plates on the oral surface, which nearly completely overlap the dorsal surface. The margin in the neighbourhood of the aulacophore is sometimes arcuate and bears medially the slender insertion of the aulacophore. Next to it, on the oral surface, short transverse riblets can be seen, which are directed to the aulacophore. The lateral margins of the dorsal surface bear a row of knots. The elongate aulacophore bears spines, which taper to the end. The anterior large ossicle (stylocone) has the appearance of a buttercup. At the other edge of the body a strong spine is attached, but is missing in most species."
Name derivation: Stylos = pillar.
Identified by oilshale.
References:
Dehm, R. 1934. Untersuchungen an Cystoideen des rheinischen Unterdevons. Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Abteilung der Bayerischen Akademie der Wissenschaften zu München für 1934: 19-43.
Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
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