Sunday, April 13, 2014

Sphaerocrinus geometricus

Another crinoid calyx to show you from Germany. It's a Sphaerocrinus geometricus from the Loogh formation (Devonian, Givetian stage) near Üxheim, Germany. This calyx reminds me a little of the Dolatocrinus sp. calyx, that are found in the Devonian rocks of Michigan, in terms of the plate ornamentation.

Dorsal surface
Oral surface

The next three photos are the calyx rotated approximate 90 degree between photos.

Thanks to Nils for the fossil!

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