paleontology study of ancient life (not humans) smithsonian
TRANSCRIPT
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PALEONTOLOGYPALEONTOLOGY
STUDY OF ANCIENT LIFE(Not humans)
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SmithsonianSmithsonian
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What is a fossil?What is a fossil?
Evidence of life preserved in rock
Age?
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What becomes a fossil?What becomes a fossil?
Hard parts!– Shells, bones, teeth, wood
Buried quickly– Sea life– floods
Replaced by rock (petrified)– Atom by atom replacement RARE
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Type of fossilsType of fossils
Cast- replacement of living organism Most common
Mold- imprint of organism
Resins- petrified sap (amber)
tar
may preserve actual critter
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Cast and moldsCast and molds
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Mold; castMold; cast
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Cast or mold?Cast or mold?
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ammonitesammonites
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amberamber
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Trace fossilsTrace fossils
Indirect evidence (not actual organism)– Tracks– Burrows– Coprolite– gastrolith
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Where to look for fossils?Where to look for fossils?
Fine sediment
Time period?
Dino fossils in Wyoming
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Making of a museum displayMaking of a museum display
Make latex mold out of actual fossil
Pour plaster into mold to replicate fossil
Paint it
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Fake!Fake!
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Dinosaur Bones to ModelDinosaur Bones to Model
Many bones are usually found together
Who’s bones are who’s?
Not entire dino is found
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Fossil pileFossil pile
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Brontosaurus storyBrontosaurus story
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Lot of unknownsLot of unknowns
Color of skin? Didn’t drag tails! Muscle structure? Sounds?
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Apatosaurus- goof by US postal Apatosaurus- goof by US postal serviceservice
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Jurassic Park problemsJurassic Park problems
No blood inside amber insects ever found
No dino DNA ever found DNA deteriorates over
time- only partial most meals are extinct
too Most dinos portrayed
were Cretaceous
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TT--REXREX SUE SUE
The most famous dinosaur ever!
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First glimpse, with discoverer First glimpse, with discoverer Sue HendricksonSue Hendrickson
August, 1990August, 1990
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All volunteers furiously dig All volunteers furiously dig Sue outSue out
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The skull is found intactThe skull is found intactAug. 22, 1990Aug. 22, 1990
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Every bone is incased in Every bone is incased in plasterplaster
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Preparing the skull by the Preparing the skull by the Black Hills Institute, 1991Black Hills Institute, 1991
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Finished SkullFinished Skull
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TeethTeeth
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Artist renditionArtist rendition
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Other bones were found with Other bones were found with SueSue
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Forearm; only two ever found Forearm; only two ever found from a T-Rexfrom a T-Rex
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Sue’s wishboneSue’s wishbonefirst one ever found in a T-Rexfirst one ever found in a T-Rex
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Bones are seizedBones are seizedMay14, 1992May14, 1992
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On display at the Chicago On display at the Chicago Field MuseumField MuseumMay 17, 2000May 17, 2000
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Only bones not found, seen in Only bones not found, seen in blackblack
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Working paleontologist at the Working paleontologist at the McDonalds Lab in the Field McDonalds Lab in the Field
MuseumMuseum
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Petrified ForestPetrified Forest
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La Brea Tar pitsLa Brea Tar pits
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MASTADONS &MASTADONS &MAMMOTHSMAMMOTHS
NOT RELATED TO THE DINOSAURS
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MastodonsMastodons
Lived during Quaternary Period
Pleistocene Epoch Ice ages Lived in Michigan MI’s state fossil
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Attracted to salt deposits
Lived along with humans
Over 259 found in MI
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Found in Rush Twshp, MI 1944Found in Rush Twshp, MI 1944on display at U of Mon display at U of M
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Found in 2001 near Flint, MIFound in 2001 near Flint, MI
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Skull and teethSkull and teeth
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Fossil classificationFossil classification
Kingdom -AnimaliaPhylum -ChordataClass-MammaliaOrder -PrimatesFamily-HominidaeGenus -HomoSpecies -Homo Sapiens
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BOUDA’S RULE OF FUNKY BOUDA’S RULE OF FUNKY FOSSILSFOSSILS
As time progresses; organisms become more complex
ANDOrganisms are more diverse
Simplest?Complexest?
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Funky fossil #1Funky fossil #1
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Funky fossil #2Funky fossil #2
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Funky fossils #3Funky fossils #3
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Funky fossils #4Funky fossils #4
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Funky fossils #4 cont.Funky fossils #4 cont.
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