Striacoceras

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In: Cephalopods, Limestone, Nautiloids

Update: Mooreoceras is no longer considered a valid genus. Kröger and Mapes (2005) compared more than 1,000 specimens and found that its type species, M. normale, cannot be separated from Pseudorthoceras knoxense. Specimens I once called Mooreoceras are now catalogued as P. knoxense. More on the Pseudorthoceras page. Pseudorthoceras wasRead More →

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In: Plants, Stream Slate

Huge slabs of weathered shale and slate run down the local stream nearby. Lifting pieces can introduce you to a variety of different fern fossils. There are bits of Lepidophylloides and pieces of Lepidodendron bark. The ferns could be Neuropteris or Pecopteris, and I am leaning towards Pecopteris. Ferns areRead More →

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In: Limestone
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The shell is probably Schizodus. The impression of the Crinoid is well defined. In my opinion this specimen worth keeping. Schizodus was first described by W. King in 1844. It’s interesting to wonder if this impression was left during the burial process, or was the result of compression of theRead More →

Specimen Front

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In: Cephalopods, Collection Pieces, Limestone, Nautiloids

This specimen of Cephalopod, CG-0004, belongs to the genus Metacoceras. I first assumed Tainoceras, yet, that genus does not occur in the Brush Creek Limestone. A good deal of time was spent using an air scribe to take the piece from the first photo in the gallery to get toRead 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 →

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In: Collection Pieces, Mid-Hill Shale

Meekospira peracuta is a high-spired gastropod. This specimen was found next to a concretion in shale. The large outer rim of the concretion is visible as a curved piece on the rock. The tip of the snail was more prominent when first pulled out, and the attempted removal of theRead More →