Learn how pieces of plants, insects, dinosaurs and other critters become fossils.
Learn about these ancient cephalopods: when they lived, where their fossils are found, their morphology and biology, and why some fossilized specimens still exhibit iridescence.
Learn more about this small freshwater herring from the Eocene Epoch, which is found in great numbers in the limestone strata of the Green River Formation in southwestern Wyoming.
This fearsome apex predator of prehistoric oceans was the largest shark species known to marine paleontologists. Learn more about this amazing "megatoothed" shark.
How thousands of years can make a stone from a tree, and what we can learn from it.
Learn more about this ancient relative of the horseshoe crab, and why it is one of the most useful creatures in the fossil record.
Learn more about how to prepare fossil specimens for display, from rough state to finished piece.
If you're interested in fossils and planning a visit to Wyoming, Ulrich's quarry digs are exciting and rewarding. There is nothing that quite compares with the thrill of uncovering a 60 million year old fossil!
Learn how fossilized sauropod bones became magnetic, and how they provided a key to finding Seismosaurus fossils.
Scientists are now settling in for a comprehensive study of an ancient treasure trove that promises to dramatically expand understanding of Ice Age fauna, flora and ecosystems in the Rocky Mountains.
Tawa hallae, a previously unknown species of carnivorous dinosaur revealed recently in the journal Science, is providing new insight into the early evolution of dinosaurs.
Anchiornis huxleyi, a new species of "profusely feathered" dinosaur discovered recently in northeastern China, is expected to give scientists new insight into the evolution of birds and flight.
Recent investigations by a team of Yale University paleobiologists have revealed color pigmentation in the plumage of the oldest known feathered dinosaur, Anchiornis huxleyi.