The Paleozoic gastropod (snail) Shansiella carbonaria (Yin 1932) is a common find in the Pine Creek limestone locality I search in Armstrong County. Specimens are easy to come by, and each is unique and visually pleasing to examine. Norwood & Pratten described this medium-sized snail more than 160 years agoRead More →
The extinct cephalopod Metacoceras clinocostatum is a species commonly found in Brush Creek limestone. Compared to other examples of the genus Metacoceras, it is very small in size. I was apprehensive about identifying these. In the past, I believed they were the inner whorls of larger specimens. But, these areRead More →
In finding marine fossils in the Glenshaw Formation, I have noticed three distinct preservation types within the limestone. This observation does not say that there are only three, but these are the most common I have identified. All these involve the preservation of marine creatures’ remains in limestone. Marine limestoneRead More →