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Name:
Gennaeocrinus mourantae
Age: Devonian
Formation: Arkona Shale
Location: Arkona, Ontario, Canada
Size: Crinoid is 2.05 inches long, 1.8 inches wide
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This is an absolutely stunning crinoid. It is a very rare Gennaeocrinus mourantae from the Middle Devonian of Ontario, Canada. A small pocket of these crinoids was discovered in the 1970s and quickly dug out. The shale lens that contained the crinoids was very weathered and almost all of the crinoids that were found were free of matrix and lacking stem. Only a handful of specimens were ever discovered that were still embedded in the matrix. This is one of those specimens. This type of crinoid has a heavily ornamented cup composed of stellate plates and biserial arms. These features are beautifully displayed on this 3-dimensional specimen. The long, flowing arms are complete to the very tips. They are extremely well-preserved in a ''splayed'' arrangement, and the fine pinnules of the arms are just incredible. A section of the stem is still attached, and the LONG cirri are wonderfully showcased. The ''sea lily'' has exquisite detail and color and is well centered on the natural plate of shale - simply a museum quality display fossil. This is one of the most spectacular Devonian crinoids that we have ever seen.
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