Antiquatonia portlockiana was first described by Norwood and Pratten in 1855. The genus Antiquatonia includes eight distinct species. It has a surprisingly short age range of about 20 million years. The species has yet to be found outside of the Carboniferous Period. When I first found this brachiopod, I wasn’tRead More →
Update:This specimen is Allopinna godleskya Yancey 2024.-Clint August 2024 After finding a great Sea Pen example, I also found this one that had been set aside. The specimen passes through the rock, showing itself on the other side. A Crinoid stem impression can be seen on the opposite side. TheRead More →
Composita was a genus of brachiopod from the Late Devonian up until the Late Permian. There are a few pieces of the original shell attached to the fossilized inside. This form of fossil is also known as a Steinkern. This species is very common in the local marine zones. ThisRead More →
By far the largest Crinoid Stem I’ve found so far. This was in a thin triangle of Limestone and was easy to get out. I count six columns stuck together here. Crinoids are very common locally, however larger ones are more rare. I still would like to find a CrownRead More →
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 →
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 →
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 →
Not sure what this is. I feel like it is common. What was interesting is the original shell material and the fact that it was two shells stacked. The first assumption I’ve heard is that it is Linoproductus.Read More →
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 →
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 →