Inside of Devonian Coral

Here is some sort of Devonian (?) coral that been cut longitudinal with its bubble like chambers.

Favosites Emmonsia eximia

Here is another view of a Devonian coral called Favosites (Emmonsia) eximia found in Louisville, Kentucky.

Cyathophyllum colligatum

Here is a Devonian coral found in Jefferson County, Kentucky in Jeffersonville Limestone. It is a Phillipsastraeidae called Cyathophyllum colligatum.

Still experimenting with elevated glass plates with gradient backgrounds.