I went back to where I found the first Petalodus tooth, and the first rock I split open held another Pennsylvanian Petalodus tooth. This specimen is longer than the first one. It measures 1.5mm more narrow, however this is due to a chipped left corner. The limestone is a bitRead More →

Finding a possible Petalodus tooth is one of the gateway fossils that lead to my love of fossil hunting. My first find was a bust, but finally I have found the real thing. This piece came from the huge shelf rocks that outcropped inches from the creek bed locally. WeRead More →

Shansiella, a Gastropod

Shansiella was first described by Yin in 1932. It can be identified as such by viewing it’s bands and a distinctive selenizone on the aperture opening. There are large numbers of Gastropod samples to be found in Limestone and shale, but I rarely do I find ones that are asRead More →


Catalog Number: CG-0012 My first Wilkingia find was in soft eroded matrix. I found this specimen while exploring a new locale. A 6 foot by 2 1/2 foot by 7 inch thick slab of limestone that was only 6 inches from the stream bed. With help, I slowly removed soilRead More →


While I have many sources of limestone locally, this specimen of Fenestella was one of my first finds in a new source. Just across the valley floor to the other side, a ridge of limestone cropped out just above the stream. While I’ve likely encountered many bryozoans in limestone, thisRead More →

Cephalopod found in Pennsylvanian Limestone

This specimen is a Sea Pen. Originally, I was classifying local Sea Pen fossils as Pteronites, however over the past 50 years, the naming has started to change. The type species Pteronites was originally named for species found in England (McCoy 1842). In 1978, a new branch named Meekopinna (YanceyRead More →

Lepidodendron fossil in sandstone.

My daughter found this Lepidodendron specimen during a quick expedition to explore exposed shale along a steep roadside hill. It was lying along side the road on a raised dirt pile on top of the soil. Logically, I believe this piece was unearthed while PennDot was making road repairs. ThisRead More →

Euphemites, maybe

Update: This may be Euphemites. Examples from the Pennsylvanian Atlas of Life. Euphemites is a genus of the Bellerophontidae family. It is firmly within the Mollusca Phylum, but exact taxonomy is not universally agreed upon. I will likely have a lot of unidentified pieces. This includes many brachiopods, as theyRead More →


Macroneuropteris is a seed plant that has a temporal range only in the Carboniferous. I found this specimen in the talus near the lab. Most specimens I find are of small leaves, or large pieces of bark. This was more certainly a large leaf. I wanted to show the leafRead More →