In finding marine fossils locally in the Glenshaw Formation, I have noticed three distinct preservation types within limestone. This does not indicate that there are only three, but these are the most common I have identified. All of these involve the preservation of marine creature’s remains in limestone. Limestone is
This tiny late Paleozoic gastropod is most likely identified as Strobeus brevis. Measuring somewhere between four and five millimeters, this snail would be difficult to spot if you were not looking for it. This makes identifying it slightly more difficult, with small morphology to compare. Its spire does have a
Without a doubt, the genus Metacoceras is one of the two most common cephalopod genera found locally. This particular specimen preserves inner chambers. It did split in half while I was recovering it, but to my surprise, everything remained intact. Individual septal wall/suture lines can be seen on close inspection.
In continuing new specimen photography, I have completed the photography for all Wilkingia terminale in the catalog. I have described some specimens in the text below. CG-0012, Wilkingia terminale The specimen is nearly 7 cm in length, from posterior to anterior, and 2 cm between margins. Growth lines are visible
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 is
Eomarginifera longispinus is a species of brachiopod that existed for over 80 million years. This specimen is one of my first ten recorded specimens. It is unique because it is preserved in the soft punky layer that sits below and above the limestone stratum. The specimen became wrinkled after storage,
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 the
Lophophyllidium and Stereostylus are the two known genera of Rugose Corals in the Glenshaw Formation. Locally in the Brush Creek limestone, they are common to find. They are hard to recover from the hard limestone and don’t come out in one piece. The Pine Creek limestone locality, however, is quite