During this period, oceans formed as land shifted and broke out of one big supercontinent into smaller ones. 3 min read Continents were on the move in the Cretaceous, busy remodeling the shape and ...

A fossil from one of the largest ... Cretaceous—Eocene rocks and to retrieve a large vertebra belonging to Alamosaurus, a long-necked dinosaur that lived in North America during the Cretaceous ...

It revealed marked seasonal temperature differences and periodic glacial melt events during the Early Cretaceous period (approximately ... patterns resembling tree rings, forming alternating ...