Devonian Clam/Brachiopod/Cornulite

Here is a Devonian clam and brachiopod fused together. They were found in the Jeffersonville Limestone in Clark County, Indiana. It looks to be that the clam and the brachiopod did not interact together. Looking at just the brachiopod side we see a Cornulites attached to one of the shell ridges and at the hinge point of the shell a hole. It is possible that a snail bore into the brachiopod shell.

Signs of beekite are on both sides of the brachiopod shell.

Limoptera cancellata: A Devonian Clam

Here are some pictures of fossilized clams from the Devonian period. These pelecypods were called Limoptera cancellata and were found in Clark County, Indiana.

Pelecypod or Clam: Paracyclas lirata

Here are some images of clams or pelecypods from the Devonian period. They were found in Clark County, Indiana at the Jeffersonville Limestone layer. These clams are known as Paracyclas rugosa or Paracyclas lirata as defined by Conrad in 1838.

This website (www.uky.edu/KGS/fossils/nettelroth.htm) can be helpful when trying to identify shell fossils from the Louisville area.