PPT-FOSSILS- Evidence from Once-living Organisms

Fossils found in SEDIMENTARY ROCKS The lower the sediment layer is the older the fossils of the layer will be Law of Superposition As time elapses more and more sediment layers form to create the layers of sedimentary rocks. Cornell Notes pg. 137. What is a Fossil?. Preserved remains or traces of plants, animals, and other organisms.. Types of Fossils:. mold fossils.  (an impression made in the rock- like a footprint in sand). What are fossils?. FOSSILS. . are. . the . preserved remains or . traces.  of animals, plants, and other organisms . that lived long ago.. When an organism dies, hard parts of the animal (bones, teeth, shells, etc.) can be preserved in rock.. Lauterbach 2016. Paleoclimate Data shows Earth’s Changing History over time:. These notes go in your Journals!. The Earth’s processes we see today including . erosion. , movement of lithospheric plates and changes in . Part II. Types . of Fossils:. Molds. . Casts. Trace fossils. Petrified . fossils. Body. Mold. . fossils. - . a visible empty . space . that was left after an . organism . was . buried in sediment and then . . Fossils are the . preserved remains . or traces of . living. things. Most fossils form when . living. things die and are buried by . sediments. . The . sediments. slowly harden into . rock. Biochemistry. Evidence for Evolution. Darwin Predicted:. Because new species form from existing species, there should be intermediate stages found in the fossil record.. Fossils. Evolution determines . Evidence. Evidence. . of . common ancestry . among species comes from many sources.. . 2. #1 Fossil Evidence. . Fossils. Earth is . Millions. of years old!. Fossils in . older layers . are . more primitive . 2. Fossils provide evidence of organisms that lived in the past. 3. The wing of a bat has bones that are similar to those in the human arm. 4. DNA can tell us how closely related 2 organisms are.. 5. Whales are descended from land dwelling mammals. Can you name any dinosaurs?. Do you know what they looked like or how they moved?. Scientists have been able to tell us many things about organisms (such as dinosaurs) that lived millions of years ago.. 1. Blood . proteins in horses are chemically similar to blood proteins in monkeys. This similarity suggests that horses and . monkeys:.   .  . . a. can interbreed  .  . b. evolved at the same time  . Happy . Winds-day . Pooh!. Today:. Patterns in the Fossil Record – . . R. eview . fossil . formation. Changes in the type and distribution of fossil species. Similarities between fossils. Body Structures and Patterns (in fossils). Evidence. Evidence. . of . common ancestry . among species comes from many sources.. . 2. FIVE PIECES OF EVIDENCE FOR EVOLUTION. G – Geographical . distribution . F – Fossil . evidence (remains of ancient organisms). 8. th. grade. Compare . fossils found in sedimentary rock to determine their relative age. . . http://www.brainpop.com/science/diversityoflife/fossils. /. . Standard for this lesson: . How can we tell what lived when?. ASSISTANT PROFESSOR. Department of Zoology. Nilkantharo. . Shinde. Science and Arts College, . Bhadrawati. Fossils. – . Sir Charles Lyell. Fossil can be defined as . “Any body or traces of body, animal or plant buried and preserved by natural cause”..