Sentences with phrase «most primitive bird»

«The new fossils superbly document the link between modern whales and their land - based forebears,» he concludes, «and should take their place among other famous «intermediates,» such as the most primitive bird, Archaeopteryx, and the early hominid Australopithecus.

With a continuous surface, he says it could generate more lift than the feathers along the tail of the most primitive bird, Archaeopteryx, making it more useful for flight.

All the known fossils of primitive birds (stem avians) could easily fit on a desk and our only look at Mesozoic [250 to 65 million years ago (Ma)-RSB- feathers (except for a few isolated plumes) was Archaeopteryx, a theropod dinosaur considered by most to be the most primitive bird (see the figure).

Whatever the case, R. ostromi is clearly one of the most primitive birds ever discovered.

Not exact matches

«This is borne out by the fact that Hesperonis — discovered by Othniel Charles Marsh of the Yale Peabody Museum of Natural History — which is a near relative of modern birds that still retains teeth and the most primitive stem avian with a modernized beak in the form of fused, elongate premaxillae, also possesses a modern bird palatine bone,» he said.

It is known to be the most primitive dromeosaur, a group of two - legged predatory dinosaurs closely related to birds.

Archaeopteryx has always been considered to be the most primitive as well as the most ancient bird.

It was likely the most primitive of all birds.