Wednesday, January 16, 2013

Caryocrinites ornatus cystoid from the Rochester Shale

I purchased this next specimen from Ebay. It's a Caryocrinites ornatus Cystoid from the Rochester Shale. It is in pretty good shape but could use a little cleaning to bring out some more detail.

This would be the top of the calyx where the arms would have attached.

A slightly different angle of the above view.

The specimen came from the Rochester Shale which is dated to the Sheinwoodian/Homerian stage of the Wenlock epoch of the Silurian.

Here are some specimens from the Yale Peabody Museum of Natural History.

My friend Joe has a very nice intact specimen on his website.

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