Eomarginifera longispinus brachial valve underside

Yet again, I need to reverse the identification of the specimens below. I will be altering the article, but the specimen referenced found in the Brush Creek limestone is not E. longispinus, but Kozlowskia splendens. L. longispinus is found in the late Mississippian of European and U.K. rocks. Eomarginifera longispinusRead More →

Kozlowskia splendens is a species of brachiopod described in the Brachiopods of Ohio book. The species is reported from the Brush Creek limestone. I originally wrote this post about specimen CG-0008, but it turned out to be Eomarginifera longispinus. The difference? The so-called ears of the shell. This is theRead More →

Crinoid Calyx plate with scale

Crinoid Calyx specimens are well known in the world of paleontology. I personally have not found one that I could identify as such. Crinoid columns are very common in local rocks. However, Crinoid Calyx pieces seem to be rare locally. I found several columns just yesterday, when collecting limestone thatRead More →

I was not quite sure about the genus of this small Brachiopod that was found today. It came from the soft punky layer on the top of the limestone. This layer is soft and typically wet. Through water interaction, it has made the typically hard limestone into a soft matrixRead More →

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 larger range, 326.4 to 247.2, or 79.2 million years of time.Read More →

Top view of Neospirifer

I have seen a few specimens of Neospirifer locally, however none this large and in as good as shape. I have settled on this being the genus Neospirifer (Fredricks 1919), or at least something from the Spiriferidae family. The prominent groove down the middle of the shell with two raisedRead More →

The shark tooth, Petalodus ohioensis, is the most common vertebrate fossil found locally. I have collected twelve specimens from the Brush Creek Limestone and one from the Pine Creek Limestone. I have a comprehensive live research article in general on the entire genus, Petalodus, available on this website. Click toRead More →