-40%
Fossil Crinoid Superb Pyritized Arthroacantha Carpenteri Devonian Sylvania Ohio
$ 105.57
- Description
- Size Guide
Description
Here is a splendid pyritized fossil crinoid, Arthroacantha Carpenteri, from the Silica Formation by Sylvania, Ohio. It is from the Devonian, which lasted from 419 to 359 million years ago, long before the first dinosaurs.It is a very nice thing to see a good crinoid fossil. It is also very nice to see something pyritized. But, together? That is getting pretty awesome, a crinoid over one-third of a billion years old, beautifully pyritized with soft sparkly pyrite. No gold paint or other restoration has been added.
This crinoid measures about 2.5 inches in length, and weighs 3.9 oz.
Crinoids are sometimes known as "Sea Lilies", but they are animals, not plants. Some species have managed to survive until today. Back in the Devonian, they attached themselves to the sea floor with a "holdfaast". Their flower-like appendages would open and capture food going by. Today, most crinoids have the ability to move across the ocean floor.
A wonderful addition to an advanced collection.
We are happy to enclose a COA (Certificate of Authenticity). Some words of caution about COA’s: Do not let them become a substitute for learning about the fossils. We have been working with fossils for many years, and we have seen hundreds of very nice-looking COA’s, some that are wrong, mis-describing a specimen. In addition, the person selling the item is often the one who writes the COA (potential conflict of interest). Finally, a COA without a photo of the exact item described, tied to that COA, is worthless, as it can later be placed next to any fish fossil. We suggest that instead of relying on a COA, that people read and study the subject.
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