Spectacular Bundenbach Brittlestar Fossil Eospondylus
from the famous Hunsrück Slate Lagerstatt

Name: Eospondylus primigenius (Ophiuroid or brittlestar fossil)

Phylum Echninodermata; Class Ophiuroidea; Order Ophiurida

Geological Time: Lower Devonian Seigenian/Emsian Stage

Size (25.4 mm = 1 inch): 78 mm across, 55 mm wide as displayed ( longest arm is 80 mm if straightened) on a 168 by 160 mm matrix

Fossil Site: Hunsruck Slate, Bundenbach Germany

Code: RS81

Price: $695.00 - sold

Eospondylus primigenius BundenbachDescription: Well-preserved and exceptionally large example of an Ophuroid (brittlestars) known as Eospondylus primigenius . The Hunsruck slate is famous for its fossils, many of which have pyritization present. Rapid burial and pyritization was what led to the many wonderful examples of early Devonian life from the region. The chemistry of the silt was such that low organic content and high levels of iron and sulfur allowed the pyrite to diffuse into the tissues rather than be deposited in the sediment. The pyritization of this one makes for an esthetic display piece. The mudstones were metamorphosed into slate during the Carboniferous. The slate was quarried for roofing tiles, and the quarrymen would save the fossils for later sale. Now that the quarries are no longer open, future supplies of these wonderfully-preserved benthic organisms will only come from existing collections.

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