Productus wortheni Brachiopod Fossil

The Mississippian Period brachiopod fossils Productus wortheni found in the Knobstone Formation of Clark County, Indiana, USA. What is nice is the cast and its negative still in the matrix. Note the small divots in the negative marking where spines were.

Thanks for the image Kenny.

Syringothyrus Brachiopod Lophophore Fossil

Here is a fossil I do not think I have seen before. The Mississippian Period brachiopod Syringothyrus texta found in the Knobstone Formation of Clark County, Indiana, USA. What is special about this is the feeding tube (lophophore) is shown.

Nice find Kenny!

Fenestrate Bryozoan Fossil

Images of fenestrate bryozoan fossils found in Knobstone Formation of Clark County, Indiana USA. The fossil dates to the Mississippian Period. Thanks to Kenny for the images.