MARTIN & HASIOTIS, 1998, MARTIN, HASIOTIS, BONUSO, SHIPMAN, PYLE & ROCCO, 1997
Locality: Petrified Forest National Park, Apache County, Arizona.
Horizon: Newspaper Sandstone Bed, Monitor Butte Member, Chinle Formation.
Biostratigraphy:
Age: Late Triassic.
Material:
Number: Not given: 12 footprints with 4 missing prints.
Note: Point-bar to lateral chute channel deposit.
_____________________________________________________________________________________
Nests?
HASIOTIS & MARTIN, 1999
Locality: Flattops Sandstone, Petrified Forest National Park, Apache County, Arizona.
Horizon: Petrified Forest Member.
Biostratigraphy:
Age: Late Triassic.
Material:
Numbers: Not given: 100 pits.