Monday, December 19, 2022

Waldron Shale Desmograptus Graptolite Fossil


This post is a fossil called Desmograptus sp. (Hopkinson, 1875) graptolite. Fossil found in the Waldron Shale of Clark County Indiana USA. It dates to the Silurian Period. The fossil is black due to carbon-film preservation.

Fossil on display at Falls of the Ohio Interpretative Center Clarksville Indiana USA as of December 2022.