Metacoceras

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In: Cephalopods, Collection Pieces, Limestone, Nautiloids

Limestone found in water usually yields better specimens. The water works its way into the cracks and crevices within the rock and specimens often come out easier compared to dry limestone. This specimen of Metacoceras is one of my best ones yet, coming out in once piece and showing aRead More →

Petalodus Tooth

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In: Collection Pieces, Limestone, Petalodus, Teeth

In going back to the area where I typically find Petalodus teeth, I have several pieces of limestone separated out to look for. In searching, I found another tooth. However upon closer inspection I figured out that I had found the other side of tooth no. 6. Petalodus CatalogRead More →

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In: Collection Pieces, Limestone, Trilobites

I found this trilobite tail, also known as a pygidium, embedded in Brush Creek Limestone. By the Carboniferous, trilobites were on the decline, and evolution made them smaller. Only the order Proetida survived into the Carboniferous and died out at the end of the Permian. Two species represent the BrushRead More →

Paleoneilo

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In: Clams, Collection Pieces, Mid-Hill Shale, Shale

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 →

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In: Collection Pieces, Limestone, Petalodus, Teeth

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 →

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In: Cephalopods, Limestone, Nautiloids

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 →