Productus wortheni Brachiopod Fossil with Spines!

Wow, another special image similar to a posting 2 days ago. The Mississippian Period brachiopod fossil Productus wortheni found in the Knobstone Formation of Clark County, Indiana, USA shown in image. The special item about this image is the spines preserved in the sandstone matrix. They are so delicate yet survived the fossilization process and here they are hundreds of millions a years later.

Kenny, thanks for the image of this very sweet find.

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.