Description
EXCEPTIONALLY RARE MUSEUM-GRADE PENTACRINITES FULL CRINOID FOSSIL
An extraordinary and complete specimen of Pentacrinites, this museum-grade fossil is a full crinoid (sea lily) preserved in the world-renowned Posidonia Shale (Posidonienschiefer) of Holzmaden, Swabian Jura, Stuttgart, Germany. Dating back to the Toarcian Stage of the Lower Jurassic (Upper Lias), approximately 182 million years ago, this piece exemplifies the exquisite preservation of echinoderms from this legendary fossil deposit.
Fossil Details:
- Species: Pentacrinites sp.
- Type: Complete crinoid (sea lily)
- Age: Lower Jurassic, Toarcian Stage (Upper Lias)
- Formation: Posidonia Shale (Posidonienschiefer)
- Location: Holzmaden, Swabian Jura, Stuttgart, Germany
- Depositional Environment: Low-oxygen marine basin with fine-grained sediment allowing for exceptional preservation of articulated crinoid stems, calyx, and arms
- Morphological Features: Fully articulated crinoid showing stem, calyx (crown), and feeding arms in life position; five-fold radial symmetry typical of echinoderms
- Notable: Complete preservation with delicate arm structures intact; outstanding example of Holzmaden conservation lagerstätten fossils
- Scale Reference: Scale rule shown in photo; 1cm squares/cube for precise sizing
Geological Context: The Posidonia Shale of Holzmaden is world-famous for its exceptional preservation of marine fauna from the Early Jurassic. The anoxic conditions in the depositional environment created ideal circumstances for conserving crinoids like Pentacrinites in remarkable detail, including articulated stems and crowns.
Additional Information:
- All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity.
- Full mounting plates are included for optional wall hanging display.
- The fossil pictured is the exact specimen you will receive.
Taxonomic Classification:
- Order: Isocrinida
- Family: Pentacrinitidae
- Genus: Pentacrinites
This is a rare opportunity to own a complete Pentacrinites crinoid fossil from one of the most famous fossil beds in the world. Perfect for serious fossil collectors, museums, or as a centerpiece in a natural history display.








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