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Jimbacrinus bostocki, crinoid mortality plate

This is a superb crinoid mortality plate replica with 17 specimens of Jimbacrinus Bostocki from the Cundlego formation Gaskoyne Junction Western Australia.

Dating to the Late Artinskian of the Permian period-circa 284-275 Million Years Ago. Few collectors can afford a real specimens like this because they sell for hundreds of dollars.

Crinoids are assigned to the phylum Echinodermata, a group of radially symmetrical marine animals, such as the starfish, sea urchins, and brittle stars. Crinoids are commonly referred to as "sea lilies".

These flower-like marine invertebrate animals are beautifully colored and live as solitary individuals. This species is characterized by a globular body enclosed by a small calyx, from which freely moving arms extended upward to gather food. At the bottom of the jointed, flexible stem, was a root-like structure by which it was attached to the sea bottom.