'Trace fossils' diaporamas de présentation

LIFE on EARTH: What Do Fossils Reveal?

LIFE on EARTH: What Do Fossils Reveal?. CHAPTERS 3 and 7. Fossils. Fossils are the remains or traces of prehistoric organisms which have been preserved by natural causes in the Earth's crust. Evidence of past life. Most common in sedimentary rocks.

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Fossils

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Warm Up 11/9

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Insect Evolution

Insect Evolution. 500 400 300 200 100 0. Silurian. Devonian. Carboniferous. Permian. Triassic. Jurassic. Cretaceous. Entognatha. Archaeognatha. Hexapoda. Zygentoma. Ephemeroptera.

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Fossils

Fossils. Remains of Ancient Plants And Animals, Evidence of Life . Commonly Preserved:. Hard Parts of Organisms: Bones Shells Hard Parts of Insects Woody Material . Rarely Preserved. Soft or Easily Decayed Parts of Organisms: Internal Organs Skin Hair Feathers. Types of Fossils.

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Academic Raceway Fossils

Academic Raceway Fossils. Grade 6. Fossils. Remains or evidence of a once living thing. Examples of fossils. bones, shells, pollen grains, seeds, and imprints of an organism. What do fossils tell us?. Appearance and activities of extinct organisms

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Academic Raceway Fossils

Academic Raceway Fossils. Grade 6. Fossils. Remains or evidence of a once living thing. Examples of fossils. bones, shells, pollen grains, seeds, and imprints of an organism. What do fossils tell us?. Appearance and activities of extinct organisms

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Ch. 21 Sec. 4

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HISTORICAL GEOLOGY LECTURE 3. THE FOSSIL RECORD.

HISTORICAL GEOLOGY LECTURE 3. THE FOSSIL RECORD. . Paleontology: "The study of the remains or traces of ancient life" - or fossils . Where are fossils found?. Mold of a tree trunk in a lava flow (igneous rock) marine fossils in marble (metamorphic rock).

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HISTORICAL GEOLOGY LECTURE 3. THE FOSSIL RECORD.

HISTORICAL GEOLOGY LECTURE 3. THE FOSSIL RECORD. . Paleontology: "The study of the remains or traces of ancient life" - or fossils . Where are fossils found?. Mold of a tree trunk in a lava flow (igneous rock) marine fossils in marble (metamorphic rock).

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Fossils Chapter 21.4

Fossils Chapter 21.4. fossil : remains or evidence of living things. (1) original remains : the actual, unchanged remains of the organism are preserved. (a) frozen in ice. (b) preserved in amber(tree sap that has hardened. (c) mummification.

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Original Preservation

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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Sci. 3-4 Looking at Fossils Page 68-72

Sci. 3-4 Looking at Fossils Page 68-72. A. Fossil - any naturally preserved evidence of life. 1) Fossils in rock- usually the hard parts are preserved. 2) Mineral replacement- minerals filled in the pores of an organisms tissue.

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Fossilization

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Precambrian Time: Vast and Puzzling

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Rebecca - Fossil types

Rebecca - Fossil types

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Mummification/ Whole Organism

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Notes

SPI 0807.5.5 Fossils. Notes. DEC 2012. What Are Fossils? The preserved physical remains of deceased organisms that are at least 10,000 years old NOTE : Most organisms do not become fossils when they die NOTE : The formation of fossils is a rare event How Are Fossils Formed?

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Introducing Evolution

Introducing Evolution. Objectives: SOL BIO.8a-d. TSW investigate and understand how populations change through time, including: Examining fossil records. Fossils. Any evidence of an organism that lived long ago. Types of Fossils. Cast Mold Trace fossils Imprints Petrified fossils

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Trace Fossils

Trace Fossils. Environmental Science Animal Forensics Unit. Trace Fossils. Temporary animal signs (anything that only lasts a short time, but is a clue the animal was there Footprints Blood trail Nests Scat/spoor/droppings Cut vegetation Burrows Fur left behind Scratches on trees.

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