Here is a clam called Paracyclas elliptica from the Devonian period. It was found in Clark County, Indiana in the Silver Creek formation.

Here is a large rock with at least two Archimedes bryozoan spirals showing. The rock also contains maybe 3 blastoids and maybe 1-2 stem pi...

I was testing the Canon Powershot Pro1 camera's Super Macro mode by taking some pictures of this gastropod. It looks like the light was ...