Mike (Crew 118 Journalist) and I went to Skyline Rim which sits up North of the Hab, and is Cretaceous (145.5 to 65.5 mya (million years ago)). At that time, MDRS area was on the edge of a sea. So we went looking for marine fossils. We took some photos and noted some nice 'rippled' pattern sandstone (like someone had made it out of clay). Mike found a nice piece of selenite (clear gypsum), and I found what may be coral (will load photos for our friendly Australian Geologist to take a look at).