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Product Description
Crinoid Marble Fossil Stone Slab Lapidary Rough Rock Tennessee
This is Crinoid Fossil in a marble or limestone and the stone slab for cabbing is 6.25 inches by 3 inches and 6.5 mm thick.
It weighs .42 lbs. and is shown wet in the first 5 pictures.
It weighs and is shown wet in the first 2 pictures.
It is from an old collection and was coated with some kind of glue on one side-which has yellowed (3rd picture).
This fossil is from the Fort Payne Formation in Pickett County near the Tennessee/Kentucky border and it is from the Lower Mississippian period and about 345 million years old.
Crinoid Marble is the remnant of a sea floor and contains crinoids and other fossils. Crinoids were plantlike invertebrate creatures with long stems that attached them to the sea bottom.
The name Crinoid comes from the Greek word krinon, meaning lily. Though they looked like plants, they were actually sea creatures and are relatives to the sea urchin and starfish. There are actually 100's of different crinoid species, and they lived as long as 490 million years ago.
They were plentiful in the Paleozoic Period, but are now pretty much extinct. They are members of the echinoderms family. They mostly lived in deep water, but could be found in shallow water too.
