A mass of broken Crinoid stems lie on top of the calyx of an Upper Silurian Crinoid {Scyphocrinites sp}. A bed containing millions of individuals indicating a mass mortality is found at Jebel Issoumour, Alnif, Morocco.
A mass of broken Crinoid stems lie on top of the calyx of an Upper Silurian Crinoid {Scyphocrinites sp}. A bed containing millions of individuals indicating a mass mortality is found at Jebel Issoumour, Alnif, Morocco.
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