Today we spent the day fossil hunting at a site known for its Ammonite fossils. At this site I just happened upon this wonderful specimen of an Inoceramus. Inoceramids are an extinct genus of marine clams that lived from the early Jurassic to the late Cretaceous period. These ancient clams resemble modern specimens of winged clams of the genus Pteria. I just happened upon this specimen, which had apparently only recently weathered out of the surrounding outcrop of Pierre Shale, while everyone was looking for Ammonite and Baculites fossils. I can’t wait to see what new kinds of discoveries we’ll make in the coming weeks. If this type of specimen is indicative of the kind we’ll find on site, I’m sure those few weeks will be exciting ones.