Bundenbach Euzonosoma tischbeinianum
22×12 cm (matrix)
Bundenbach, Eschenbach mine
Euzonosoma – The armored giant from the shale
An extraordinary example of the diversity of echinoderms from the Hunsrück slate.
This genus occupies a special position among the large brittle stars of Bundenbach. While other species impress with their graceful arms, this fossil impresses with its robust, almost geometric appearance. Alongside Loriolaster and Furcaster decheni, it is one of the most impressive forms to be found in the Hunsrück slate.
Why Euzonosoma tischbeinianum is so special:
- Distinctive body disk: The most striking feature is the comparatively large, central body disk. It is covered by a finely granulated skin, which gives the animal a very special texture.
- The “armor” made of edge plates: In contrast to its more “naked” relatives, the disk is bordered by strong, round marginal plates. In fully-grown (adult) specimens, these block-like plates have a beautiful, finely grained structure – a detail that gives this fossil a very vivid and defensive appearance.
- Anatomical precision: Here, too, the oral skeleton is characterized by greatly enlarged first ambulacra and the massive mouth corner pieces. With a bit of luck and masterful preparation, a tiny, characteristically fluted madropore plate can also be recognized.
- The shape of the arms: The arms are widest at the base of the disc and taper very evenly towards the tips. There are usually no visible spines, which further emphasizes the clear lines of this fossil.
A highlight for every Bundenbach fossil collection
Due to the lack of fine spiky rims, this genus often appears very “tidy” and graphic. The combination of the finely granulated skin and the massive rim plates makes it one of the most aesthetically pleasing collector’s items from the Devonian roof slates.
As first-class preserved specimens with a visible madropore plate and intact granulation of the skin are rare, they represent a valuable addition to any Bundenbach collection.
