Najash is a early genus of snake that lived during the late
Cretaceous period,
about 90 million years ago.
Its
fossils
were found in a terrestrial deposit in the Rio Negro province of
Patagonia in Argentina.
The fact that it was found in a terrestrial deposit, is often cited as evidence
against
Edward D. Cope's
hypothesis that snakes share a common origin with
Mosasaurs
(although a marine origin for snakes seems suggested by other
early snakes that have been discovered:
Eupodophis,
Haasiophis and
Pachyrhachis)
Najash was about 5 feet (1.5 meters) long, and is believed to have
been a burrowing animal. It had two hind legs that seem to be
adapted for burrowing, and also retained its pelvic bones.
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