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Latest Arizonasaurus Stories

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2011-05-20 12:37:24

A fossil unearthed in China in the 1970s turns out to have come from the crocodile family tree after it had already split from the bird family tree.


Latest Arizonasaurus Reference Libraries

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2009-08-04 18:00:09

Arizonasaurus was a genus of dinosaur from the Mesozoic Era of the Middle Triassic Period about 240 million years ago. It was first found in the Moenkopi Formation of northern Arizona. In 2002, a nearly complete skeleton was discovered by Sterling Nesbitt. The type species, A. babbitti, was named by Samuel Paul in 1947. One characteristic of Arizonasaurus was that it had a large sail on its back formed by elongated spines of the vertebrae. Photo Copyright and Credit

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Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.