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Original Preservation - PowerPoint PPT Presentation


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Original Preservation. Natural mummification by drying. Unaltered Preservation. Amber Deposits. Unaltered Preservation. Bison and Woolly Mammoth Skin and Hair. Permineralization/Petrification. Common preservation in wood and bone Which image is the altered/permineralized bone?.

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original preservation
Original Preservation
  • Natural mummification by drying
unaltered preservation3
Unaltered Preservation
  • Bison and Woolly Mammoth Skin and Hair
permineralization petrification
Permineralization/Petrification
  • Common preservation in wood and bone
  • Which image is the altered/permineralized bone?
petrification
Petrification
  • Petrified wood from the Petrified Forest National Park in Arizona
replacement
Replacement
  • Silica replacement of carbonate shell
  • What kind of animal is this?
replacement7
Replacement
  • Note new mineral that has replaced carbonate shell
  • What kind of fossil animal is shown?
carbonization
Carbonization
  • Common in plants and animal soft parts
molds and casts
Molds and Casts
  • What kind of animal is shown by this fossil?
molds impressions
Molds/Impressions
  • What animals are shown by the impressions?
trace fossils
Trace Fossils
  • Burrows
  • Indicate movement, activity of organism
trace fossils12
Trace Fossils
  • Coprolites
trace fossils13
Trace Fossils
  • Footprints, trackways
  • Note molds and casts