Pyrite Leptaena rhomboidalis Fossil

The picture above is of a pyrite brachiopod fossil called Leptaena rhomboidalis (Wahlenberg, 1818).  Fossil found in the Waldron Shale of Clark County Indiana USA. It dates to the Silurian Period.

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

Lyriocrinus melissa Crinoid Fossil

A very nicely preserved crinoid fossil called Lyriocrinus melissa (Hall, 1863).  Fossil found in the Waldron Shale of Clark County Indiana USA. It dates to the Silurian Period. 

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

 

Leptaena rhomboidalis Brachiopod Fossil

Today's post is of a brachiopod fossil called Leptaena rhomboidalis (Wahlenberg, 1818).  Fossil found in the Waldron Shale of Clark County Indiana USA. It dates to the Silurian Period.

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