Fossils of Lithornis are known with certainty from the Upper Paleocene through the Middle Eocene, but their fossil record may extend to the late Cretaceous. `Lithornis` is from ancient Greek for `stone bird`, as it is one of the first fossil birds to become widely discussed. Presumably closely related genera are Paracathartes and Pseudocryptur...
Found on
http://en.wikipedia.org/wiki/Lithornis
(from the article `falconiform`) ...falconiforms have been found, and those that have may require reassessment. A generalized raptor is known from 50 to 35 million years ago during ...
Found on
http://www.britannica.com/eb/a-z/l/59
No exact match found.
