A new study by the University of Minnesota challenges previous classifications paleontologists use to determine how the ...

Tenontosaurus fossils found in West Texas, the southernmost record of the dinosaur and a key to the Early Cretaceous.

Fossils from baby dinosaurs, some no bigger than a fingernail, point to the possibility that certain species lived and nested ...

The research provides new clues for understanding animal extinction and environmental changes. The paper was recently published in Paleobiology, a peer reviewed journal.

The three fossil specimens (from left to right), Avisaurus darwini, Avisaurus sp., and Magnusavis ekalakaensis, all of which are represented by a tarsometatarsus. They are all shown to scale with one ...

Getting your Trinity Audio player ready... Two scientists spent months debunking a long-standing dinosaur classification. Then, they used dinosaur bones discovered in Colorado, previously ...

The lower-middle Hetang Formation (Cambrian Stage 2–3) deposited in slope-basinal facies in South China is well known for its preservation of the earliest articulated sponge fossils, providing an ...

"The first edition of this book was published in 1982. This ed. has been completely revised and updated."--T.p. verso. Edition statement from preface (p. 5). "The purpose of this fourth edition of ...