Flexicalymene granulosa Trilobite from Martinsburg Formation

Description: One of the lesser-known trilobite species found here is Flexicalymene granulosa. Fortunately I was recently able to acquire two from an old collection forty years in the making. This is the smaller one of the two. It is just about perfect. It is comfortably prone on a small piece of shale, showing the classic rust orange color of Swatara Gap fossils.

Swatara Gap is famous for the ornate Cryptolithus and starfish fossils found for decades at this much beloved site. Unfortunately, it has been closed to collecting for a few years now. This specimen came from an old collection, acquired by a well-known collector who worked the local Swatara Gap, Martinsburg Formation, and Lancaster area, Kinzer Formation for decades.