PETRIFIED FOREST NATIONAL PARK
Stratigraphy of the Petrified Forest & Painted Desert area, northern Arizona, USA.
Badlands topography - interbedded sandstones and shales of the Chinle Formation (Upper Triassic). A permineralized fossil log is weathering out from a sandstone interbed at lower left.
Badlands topography - interbedded sandstones and shales of the Chinle Formation (Upper Triassic). A permineralized fossil log is weathering out from a sandstone interbed at top.
Petrified Forest - abundant permineralized fossil logs of Araucarioxylon weathered from the Chinle Formation (Upper Triassic).
Petrified Forest - abundant permineralized fossil logs of Araucarioxylon weathered from the Chinle Formation (Upper Triassic).
Petrified Forest - abundant permineralized fossil logs of Araucarioxylon weathered from the Chinle Formation (Upper Triassic).
Petrified Forest - permineralized fossil log of Araucarioxylon weathered from the Chinle Formation (Upper Triassic).
Petrified Forest - permineralized fossil log of Araucarioxylon weathered from the Chinle Formation (Upper Triassic).
Petrified Forest - permineralized fossil log of Araucarioxylon weathered from the Chinle Formation (Upper Triassic).
Petrified Forest - permineralized fossil log of Araucarioxylon weathered from the Chinle Formation (Upper Triassic).
Placerias - skeleton of a therapsid (mammal-like reptile).