Vinlandostrophia Brachiopod Fossil with Friends

Here is an image of three fossils in one place. First is the Vinlandostrophia (Platystrophia) sp. brachiopod with an unidentified inarticulate brachiopod attached. On the inarticulate brachiopod is a Cornulites corrugatus worm tube fossil. These fossils date to the Ordovician Period. They might be from the McMillan/Grant Lake Formation and were found in eastern Jefferson County, Kentucky, USA.

Thanks to Kenny for image.

Crinoid Holdfast on Dead Crinoid Stem

This pictures show a crinoid holdfast growing on the side of a fallen crinoid stem. The fossils were found in the New Providence Formation of Scott County, Indiana USA. The fossils date to the Mississippian Period. Thanks to Kenny for the images.

Divaricella quadrisulcata Sea Shell

These pictures are not of fossils but of a modern day bivalve. It is a cross-hatched lucine (Divaricella quadrisulcata Orbigny 1842). I am posting it because of the unique pattern of its shell. It reminds me of a Waldron Shale brachiopod fossil Dictyonella reticulata not that they have similar patterns but that they have such distinct patterns. Once you see a shell like this, you know what it is because of its unique pattern.

This shell was found on Folly Beach South Carolina USA in August 2017.  See this site for help with shell identifications:

https://www.mitchellspublications.com/guides/shells/articles/pictorial/