Collared Lizard on a piece of petrified wood. (pix by jgl)
1) long logs aligned in parallel indicating large flowing water; 2) root bulb on a large petrified tree indicating that it had been uprooted and then buried; 3) petrified matted root and branch matter consistent with a watery deposit; 4) petrified bark curling off the tree supportive of a traumatic rapid burial; 5) petrified log with no bark supportive of a traumatic removal of the bark prior to burial; 6) parallel petrified logs in clayey layered soil consistent a massive muddy burial; 7) limb socket consistent with traumatic removal of the limb; 8) petrified log preserved within a natural cement consistent with a watery burial, 9) a crushed intact petrified log consistent with a rapid burial with a heavy overburdened; 10) volcanic layer over the layered clayey strata consistent with rapid continuous deposition and stratification. (From my book on the Painted Desert Petrified Forest-see some listings below.)
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