The genus Edmondia was first described by de Koninck in 1841. The book is Description des animaux fossiles qui se trouvent dans le terrain carbonifére de Belgique, written in the French language. The genus occurs from 252.3 to 457.5 million years ago. It died out during the Permian–Triassic extinction event.Read More →
While sorting through the endless piles of fossil pieces I have set near the lab microscope, I found another piece of a Petalodus Tooth. This is the most incomplete of the teeth I’ve found to date, with only a microscopic tooth chip left behind. However, this helps with microscopic viewsRead More →
This speicmen is one of the best of the genus Metacoceras that I currently have. Metacoceras is one of the two most common species of cephalopod found in the Brush Creek Limestone. I have difficulty assigning a species. Even in the Treatise on Invertebrate Paleontology, there is a belief thatRead More →
I often find the body chambers of these cephalopods embedded in limestone. They come out as one piece but rarely are attached to the body. A specimen I freed today had two suture lines on it. Having a collapsed area on the chamber is another common feature, one that leavesRead More →