original preservation natural mummification by drying
Post on 29-Jan-2016
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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?
Petrification
• Petrified wood from the Petrified Forest National Park in Arizona
Replacement
• Silica replacement of carbonate shell
• What kind of animal is this?
Replacement
• Note new mineral that has replaced carbonate shell
• What kind of fossil animal is shown?
Carbonization
• Common in plants and animal soft parts
Molds and Casts
• What kind of animal is shown by this fossil?
Molds/Impressions
• What animals are shown by the impressions?
Trace Fossils
• Burrows
• Indicate movement, activity of organism
Trace Fossils
• Coprolites
Trace Fossils
• Footprints, trackways• Note molds and casts
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