Formation: Rust Formation, Herkimer County, New York
Size: 0.8cms y 0.7 cms, the plaque is about 11×11 cms
2 Ceraurus pleurexanthemus
Fantastic plaque with 2 Ceraurus pleurexanthemus and 2 species of crinoids, a Cincinnaticrinus varibrachialus and an Ectenocrinus simplex. Altogether a very good piece of the Ordovician of New York.
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