Unknown Crinoid from Missouri

This is one of several slabs of articulated crinoids collected
by Joe Devera and myself from the Mississippian St. Louis
Limestone of Missouri and prepared by Carl Cook.

We know one of the crinoids is Platycrinites penicillus, but
the other one (with the long pinnules and anal tube) we have
not yet identified.

Click on Images to Magnify


Top: Unknown
Middle: Platycrinites penicillus
Lower: Unknown

Left: Unknown
Right: Platycrinites penicillus

I would appreciate hearing from those that
can help with identifying the unknown specimens.

John McLeod

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