Science ❯ Geology

Sedimentary Rocks

Sandstone Amber Deposits Limestone Mineralogy Fossilization Processes Fossilization Gale Crater Bone Beds Chalk Formation Soom Shale Manganese-rich Sandstones Shatter Cones Bonebeds Chemical Processes Fossil Deposits Mudstone and Conglomerate Mudstones Clay-Rich Mudstones Fossil Formation Triassic Period Marine Sediments Volcanic Structures Marine Geology Navajo Sandstone Fluvial Processes Old Red Sandstone Ancient Rocks Meteorite Debris

Two New Triassic Dinosaurs From Argentina Reframe Early Dinosaur Evolution

Peer-reviewed finds refine timelines for key trait emergence, with evidence for a late-Carnian turnover linked to climate.

Perseverance’s ‘Leopard-Spot’ Rock Tagged a Potential Biosignature as Fresh Skepticism Surfaces

Perseverance Maps Repeated Habitable Water Episodes in Jezero, Study Finds

Storms Killed and Preserved Baby Pterosaurs, Study Finds

Study Links Violent Jurassic Storms to Baby Pterosaur Deaths