Lab 5 Exercise 8 and 12 Answer Sheet

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Purdue University *

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112

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Anthropology

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Apr 3, 2024

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NAME____________________________LAB MEETING DAY/TIME______________ EAPS 11200 FALL 2023 LAB 5 FOSSILS For the first part of Lab 5, you will be identifying a set of fossils. These are placed around the lab room, and you need to identify 10 fossils. You should use Exercise 8 pre-reading materials AND pages 174-188 of Exercise 12 when working on your identifications. FOSSIL SAMPLES You are provided samples of fossils around the lab classroom; choose 10 of these to identify Examine each sample carefully, make a rough sketch of the fossil, record its distinguishing characteristics, and then decide on a fossilization mode, name, and likely phylum of the fossil. NOTE: these fossils are all from Kingdom Animalia. # Sketch and Description Fossilization Mode Name Phylum

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LAB 5, INDEX FOSSILS For the second part of Lab 5, we will work through parts of Exercise 12, where you will be examining a suite of fossils (pictures) from a hypothetical field area. Your goal is to determine the geologic age of each rock group, based on the fossils present. We will skip the sections on depositional sequence, for now. EXERCISE 12 , PART A This is a cross-sectional drawing of your hypothetical study area. The colors represent different rock formations and the numbers pointing to each represent the groups of fauna found on pages 189-196 of the lab manual. You will come back to this drawing after completing later parts of the exercise. Using the drawings and information on fossils on pages 174-188 of your lab manual, identify the fossils of each of the fauna groups on pages 189-196 and their ages. Fill out the tables by 1. listing the taxa of the fossils on the right side of the figure 2. shading in the age range of each fossil on the left side of the figure 3. recording the age of the formation by choosing the geologic time period in common with all the fossils Your goal is to use the index fossils to find an age range for each rock group in the cross section above.

FAUNA 1 (pg 189) FAUNA 2 (pg 190)

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