�y��vlog

Dr Dave Unwin, from the University of Leicester, said: "Abfab, our nickname for the Abingdon pterosaur, shows that pterodactyloids, advanced pterosaurs that completely dominated the Cretaceous, achieved spectacularly large sizes almost immediately after they first appeared in the Middle Jurassic right about the time the dinosaurian ancestors of birds were taking to the air."

Taken a step further, these data may inform the conversation among scientists about the origins of dinosaurian flight.

The network made the decision in part because of fears of "lobbying groups that are desperately hanging on to their dinosaurian ways," one source familiar with the choice told The Guardian.

They reveal, he says, “a thriving dinosaurian community.”

“The dinosaur trackways at Tanis do represent a rich and taxonomically diverse dinosaurian assemblage which immediately precedes the impact,” Wehr said in his talk.