Above is a diagram of a North African Atrypa reticularis from the Middle Devonian Period.  It is on display at the Museum of Natural Histo...

In early March 2010 I sent a number of samples to ASPEX Corporation to be imaged with a Personal Scanning Electron Microscope (PSEM).  It w...

Atrypa newsomensis brachiopod fossil found in Waldron Shale of Clark County. It existed in the Silurian Period. Unknown holdfast of pr...