Additional fossils are placed in Pelagornis, usually without assignment to species, mainly due to their large size and Miocene age.
Those are mature fields producing medium/heavy oil from La Rosa formation of Miocene age.
All of the productive units are of Miocene age, and the underlying basement rocks date to the Jurassic period.
Fossils of Oligocene to Miocene age in and around Wyoming are another potential source for the myth.
Miocene age opalised teeth, bones, fish, and a snake head have been found.
This Turkish site is of Miocene age and is well known for its pollen studies.
This species is well documented from various locations of generally Miocene age, although usually by much fragmented remains due to the thin and tender bones it had.
The Lompico Sandstone is a sedimentary rock formation of lower to middle Miocene age.
The formation is well known in botanists for its prominent plant fossils of Late Oligocene to Miocene age.
Rock from the upper part of the Bowers Ridge was determined to be of Miocene age.