Sandstone Gale Crater Fossilization Navajo Sandstone Fluvial Processes Old Red Sandstone Ancient Rocks Meteorite Debris Mineralogy Limestone Chalk Formation Soom Shale Manganese-rich Sandstones Bone Beds Marine Sediments Marine Geology
The fossil 'Sue,' preserved in an 'inside-out' state, offers a glimpse into ancient marine life during a mass extinction but leaves evolutionary questions unanswered.