Crinoid Fossil Plate - SOLD 7.830" sponge subsisting mainly on grasses and

subsisting mainly on grasses and sedges along with willows

Standing seven feet tall with two blunt horns

sliced down the middle to view the crystals inside

polished slab measures 12

On darker colors

Crinoid Fossil Plate - SOLD 7.830" sponge subsisting mainly on grasses andCrinoids are an incredible group of aquatic animals that attach themselves to the seafloor and filter feeds with beautiful feathered arms. These creatures are echinoids, an ancient and varied group of life. Crinoids emerged in the fossil record over 541,000,000 years ago and some species still exist to this day. This specimen is a 7. 830" crinoid fossil plate that dates to about 380,000,000 years old. The fossil shows the animal's stem, calyx, and