Strobeus primigenius

In doing broader research on three species of Strobeus that occur within the Glenshaw Formation in Western Pennsylvania, I have discovered a number of excellent plates by former authors. These plates are miniature works of art, capturing details of these fossil gastropods that may not be available in photographs. ThisRead More →

An excellent specimen of Trepospira sphaerulata was recovered in late December of 2021. It is a much better example of this species of Paleozoic gastropod, so I am replacing the content of this article with photos of it. This should help future researchers looking for an excellent example of thisRead More →

Fossilized Paleozoic Ammonoids are a rare find in the Glenshaw Formation. When they are recovered, these specimens can be difficult to identify. Specimens have been recovered, but as far as volume goes, Nautaloids rule the available recoverable fauna. The first found example was recovered early, but I was unable toRead More →

Asterophyllites have been a genus of fossil plants that I have been hunting for since I started collecting fossils locally. Today I was able to recover my first specimen of one. These are the branches that come out at the nodes of the genus Calamites. While these are two separateRead More →

Cordaites and Calamites are two familiar plants in the Late Pennsylvanian fossil fauna. The two are similar as fossils, presenting as long horizontal grooves in rocks. Cordaites differs from Calamites as the latter has a termination of the groves with occasional perpendicular grooves coming from the presence of nodes. IRead More →

Timothy Conrad’s description of the Paleozoic gastropod Turbo insectus in 1835 was an open and shut case. In his historic, single sentence description, he described and figured a new species of the genus Turbo. His was the first report of North American marine fossils of the Pennsylvanian age. His wasRead More →

Recently I was able to obtain two nice examples of Lepidodendron from the Pottsville Formation in Alabama. This formation is two formations away from the Glenshaw, having the Allegheny Formation between them. Both specimens are different species, however, species for these could very well just mean they come from aRead More →

Antiquatonia portlockiana

Antiquatonia portlockiana was first described by Norwood and Pratten in 1855 as Producti portlockianus. Much later in 1976, the species was rearranged as Antiquatonia portlockiana by Douglas C. Brew and Stanley S. Beus. Specimens from Armstrong County Brachiopods have been a less-than-common find at the Pine Creek locality. Gastropods, Cephalopods,Read More →

Endelocrinus murrysvillensis

Endelocrinus murrysvillensis is a species of crinoid that was first described in 1967 by John James Burke. Crinoids are a long-lived class of invertebrates that have existed from Ordovician times to the current day. Nicknamed sea lilies, these beautiful sea creatures are often found as small disc-shaped fossils with aRead More →