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In: Cephalopods, Clams, Collection Pieces, Gastropods, High-Hill Shale, Limestone, Mid-Hill Shale, Shale

In writing the most recent research article, Aviculopinna, I set up an area to photograph specimens. While having this setup available, I went ahead and re-photographed the first seven specimens in the fossil catalog. Specimen CG-0001 John Harper identified this specimen as possibly being Orthotetes, a brachiopod. The preservation isRead More →

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In: Clams, Collection Pieces, Limestone

The Carboniferous clam species, Astartella concentrica Conrad 1842, has been found in rocks dated from 318.1 million to 298.9 million years ago [1]. This is a range of 20 million years. The genus, Astarella, is found in a much more extensive range, 326.4 to 247.2, or 79.2 million years. TwoRead More →

Wilkingia

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In: Clams, Limestone

Wilsome described the genus Wilkingia in 1959. Hoare named the species W. terminale in 1961. A very common bivalve, I have collected a few dozen specimens of Wilkingia over the past year. I have collected ten different specimens that were complete as far as length goes. Unfortunately, many specimens areRead More →

Wilkingia

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In: Clams, Collection Pieces, Limestone

Described by Hall in 1852, specimens have been found from the Brush Creek Limestone and Ames Limestone of Ohio. I have found a large number of specimens here in Parks Township, and this is one of the best ones to date. Both sides of the specimen are detailed and itRead 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: Clams, Collection Pieces, Mid-Hill Shale

The clam Palaeoneilo is easy to spot on this specimen of shale. But, what I assumed was Lepidophylloides under the Microscope really sold me on adding this to my formal collection. Is it a leaf or a spine? However, after some further discussion with more seasoned fossil experts, the LepidophylloidesRead More →