The monospecific genus Pennoceras has a limited range, the Brush Creek and Pine Creek limestones in Pennsylvania and Ohio. These curious members of the Goniatitida have a maximum diameter of only 37 mm. Miller and Unklesbay named these from specimens in the Carnegie Museum. My own specimen below is fromRead More →
Finding a fossilized Ammonoid in the Appalachian Basin is a rare occurrence. I’ve managed to find only a handful over a large number of trips. I have recovered a single one from the Brush Creek limestone and four from the Pine Creek limestone in four years of collecting. Mapes etRead More →
Fossilized Paleozoic Ammonoids are a rare find in the Glenshaw Formation. When recovered, these specimens can be challenging to identify. I have recovered a few ammonoids, but as far as volume goes, the nautiloids rule the available fauna. I found my first ammonoid early, but I could not identify itRead More →
Update: Royal Mapes has helped me identify this as Schistoceras. After sketching the suture pattern, this was the best genus in my opinion, but I did not know based on the shell ornamentation and the size. Mapes confirmed my suspicion based on suture pattern, conch width and ornamentation. I haveRead More →
The local limestone stratigraphy gives paleontologists ample opportunity to find specimens from the class Cephalopoda. These layers are all exposed as part of the Glenshaw formation, the dominant formation within Parks Township. The examples below represent a few of the many different cephalopods genera that are available. Found Cephalopod GenusRead More →