Sentences with phrase «terrestrial tetrapod»

Fossil finds from this transitional period are too few to explain why or how it occurred, or exactly when the first fully terrestrial tetrapods evolved.

Fast forward to after the gap, and we see a diverse assortment of terrestrial tetrapods.

Researchers have yet to find the species that can link early fishapods with fully terrestrial tetrapods.

Not exact matches

On the far side of the gap, named after Alfred Romer, the Harvard University researcher who first noticed it, tetrapods are rare and ill - adapted for terrestrial living.

While some invertebrates had transitioned from marine to terrestrial environments millions of years earlier, even more came ashore during this period, along with the tetrapods.

Around 385 million years ago, aquatic tetrapods colonized terrestrial environments.

«Based on the phylogenetic relationships and the presence of tetrachromacy in recent tetrapods it is most likely that the stem species - of all terrestrial vertebrates had photo receptors to detect blue, green, red and uv,» says Dr. Christian Fischer of the University of Göttingen.

In stem tetrapods, the neck ultimately separated the head from the body and is seen in today's terrestrial animals.

Research conducted by Sandy Kawano and Richard Blob at Clemson University compared terrestrial locomotion in tiger salamanders and mudskipper fish, which have similar characteristics to early tetrapod ancestors.

Tetrapod footprints and skeletal material from more than 70 localities in eastern North America indicate that large theropod dinosaurs appeared less than 10,000 years after the Triassic - Jurassic boundary and less than 30,000 years after the last Triassic taxa, in synch with a terrestrial mass extinction.