Sentences with phrase «tetrapods appeared»
The findings indicate that these stages of ear evolution were set 10 million years before tetrapods appeared, the team reports 19 January in Nature.
http://www.sciencemag.org/ Not exact matches
Lobe - finned ancestors of the lungfishes as well as tetrapods could have evolved hindlimb propulsion and the ability to walk on the substrate at the bottom of a lake or marsh millions of years before limbs with digits and land - dwelling animals appeared.
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.
The first sarcopterygiians, or the lobe - finned fish, appeared whose descendants were the first tetrapods that also evolved before by the Uper Devonian.