Some species of ornithomimosaurs that lived in what is now Mississippi, the United States, some 85 million years ago were among the world’s largest at...
About 66 million years ago, a massive asteroid crashed into Earth near the site of the small town of Chicxulub in what is now Mexico. This impact coincides...
About 66 million years ago, a massive asteroid crashed into Earth near the site of the small town of Chicxulub in what is now Mexico. The impact eradicated...
Unlike most plesiosaurs, Serpentisuchops pfisterae had both a long neck and large, elongated jaws.
Serpentisuchops pfisterae used both its neck and snout...
A new genus and species of abelisaurid theropod dinosaur has been described from the fossils found in Patagonia, Argentina.
An artist’s reconstruction...
Paleontologists have used a micro-CT scanner and 3D printing to reconstruct a herbivorous hypsilophodont dinosaur that lived in Australia during the Early...
Thalassotitan atrox, a species of mosasaur that swam in the Cretaceous oceans 66 million years ago, shows that these specialized marine creatures evolved...
A new genus and species of chasmosaurine ceratopsid dinosaur has been identified from a fossilized skull held in U.S. museums for several decades. The...
Members of Jeholornis, a genus of early birds that lived in what is now China some 120 million years ago (Early Cretaceous epoch), are the earliest-known...
Atractosteus grandei lived less than 1,500-2,500 years after the Chicxulub asteroid impact, an event that is widely accepted as a major cause behind the...
Paleontologists in Argentina have unveiled a new genus and species of armored thyreophoran dinosaur from the Cretaceous period.
Life reconstruction of...
A fossilized true bug preserved in Burmese amber dates back approximately 100 million years (mid-Cretaceous period), according to Oregon State University...
Paleontologists have found several fossilized bones of plesiosaurs — traditionally thought to be sea creatures — in the Kem Kem beds, a 100-million-year-old...
In March 2022, College of Charleston’s Professor Scott Persons and colleagues suggested that Tyrannosaurus rex should be reclassified as three species:...
Meraxes gigas, a huge meat-eating dinosaur that lived in Argentina some 94 million years ago, had short arms like Tyrannosaurus rex.
Meraxes gigas. Image...
In egg-laying amniotes (reptiles, birds and monotremes), the developing embryo is tethered to a number of the extraembryonic membranes that deliver oxygen...
