Definition of ZYGODACTYL
Origin of ZYGODACTYL
Thanks to Merriam-Webster Online Dictionary
shows off her zygodactyl feet
Some paleontologists claim Archaeopteryx as the oldest bird, dating 150 million years ago.
The feathers of Archaeopteryx can clearly be seen in this fossil specimen. There is no dispute that birds lived among dinosaurs, and may be descended from dinosaurs. Parrots, however, are living dinosaurs. No word says living dinosaur like zygodactyl! It is known that parrots are among the oldest of the avians. Fossilized zygodactyl tracks have been found dating to 120-110 million years ago (early Cretaceous period), 50 million years before the first identified zygodactyl fossils.
We have fossil evidence that parrots lived among dinosaurs. Identified by a University of California-Berkeley graduate student, the oldest known fossil of a modern land bird in North America is a jawbone believed to be from a parrot found in eastern Wyoming in 1960, and reported in the British journal Nature in 1998:
Reported by National Geographic in 2008, this find is important because it suggests that parrots evolved in the Northern Hemisphere before branching into widely diverse species in the Southern Tropics.
Scientists speculate what dinosaurs may have sounded like. We have no doubt what dinosaurs sounded like! Anyone who lives with macaws or cockatoos knows exactly what dinosaurs sounded like. The full-throated honking of a Hyacinth macaw would probably scare a Tyrannosaurus rex!