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).

 


 

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