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Some sharks got faster and bigger after lava-induced global warming in the Cretaceous.
An almost complete skeleton of a Cretaceous shark has been uncovered in Mexico. The find sheds light on what the prehistoric relative of the great white looked like.
An illustration showing sharks living at the time of the end-Cretaceous extinction event. This mass extinction event resulted in the disappearance of around 59 percent of shark species.
Their results indicate that when the ocean got very hot approximately 122 million years ago during the Cretaceous period, some sharks abandoned their habitat on the seafloor and moved up into the ...
In Minnesota, Cotter travels with his college students to Cretaceous sites in the state’s Iron Range of ore-rich areas that host Cretaceous sediment where shark teeth can be found.
An almost complete skeleton of a Cretaceous shark has been uncovered in Mexico. The find sheds light on what the prehistoric relative of the great white looked like.
An almost complete skeleton of a Cretaceous shark has been uncovered in Mexico. The find sheds light on what the prehistoric relative of the great white looked like.
An almost complete skeleton of a Cretaceous shark has been uncovered in Mexico. The find sheds light on what the prehistoric relative of the great white looked like.
By Taylor Nicioli, CNN (CNN) — During the Cretaceous Period, a genus of sharks roamed the sea with rows of unusual teeth. Mostly large and rounded, these chompers were not meant to slice through ...