dinosaur

The speed at which spinosaurid dinosaur teeth were replaced accounts for their overabundance in Cretaceous sites

The speed at which spinosaurid dinosaur teeth were replaced accounts for their overabundance in Cretaceous sites

image: Reconstruction of the skull of a spinosaurid dinosaur. Coloured the place where the fossil should be. Scale: 25 cm. view more  Credit: Erik Isasmendi. UPV/EHU. This has been confirmed in the article ‘New contributions to the skull anatomy of spinosaurid theropods: Baryonychinae maxilla from the Early Cretaceous of Igea (La Rioja, Spain)’ published in the …

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Scientists defend T. rex as only species of mighty Tyrannosaurus

Scientists defend T. rex as only species of mighty Tyrannosaurus

WASHINGTON — T. rex still reigns as the king of dinosaurs, according to scientists who on Monday (July 25) argued against a contentious hypothesis advanced this year that the mighty meat-eater Tyrannosaurus should be recognised as three species and not just one. Seven paleontologists in research published on Monday said a study from March offered …

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