109_06_MidKey_pt_I - most nearly c Earliest known predatory vertebrates most nearly d Earliest known terrestrial vertebrates most nearly e Earliest

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Quaternary Neogene Cretaceous Jurassic Triassic Permian Devonian Silurian Ordovician Cambrian Age (Ma) Era Period 200 Paleogene 100 0 Age (Ga) Eon 0 1 3 2 4 300 Missis- sippian Pennsyl- vanian pre-Hadean 1 Ma = 1 million years 1 Ga = 1 billion years 13,700 4570 4000 2500 543 505 405 285 251 202 144 65 0 0 543 EAS 109 MIDTERM 2006 (Please circle which day this is (not necessarily your normal lecture day) Part I . Please answer your choice of five of the following, indicating the most nearly appropriate time using the boldface numbers 0-13,700 on the time scale, as in the example below. (10 points, two for each). Ample allowance will be made where close calls are a possibility. No indications to the contrary, the first five you answer will be the ones counted. x. Cretaceous-Tertiary boundary most nearly ______ a. Earliest known forests most nearly ______ b. Earliest known vertebrates
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Unformatted text preview: most nearly ______ c. Earliest known predatory vertebrates most nearly ______ d. Earliest known terrestrial vertebrates most nearly ______ e. Earliest known sauropsids ( ≈ reptiles) most nearly ______ f. Earliest known saurischians most nearly ______ g. Earliest known ornithischians most nearly ______ h. Earliest known sauropods most nearly ______ i. Earliest known birds most nearly ______---------------------------------- Limit for Wednesday (a–i) ---- ----j. The “Big Bang” most nearly ______ k. Earliest known evidence of life most nearly ______--------------------------------- Limit for Thursday (a–k) ---- ----l. Earliest known chordates most nearly ______ m. Earth’s formation most nearly ______ 358...
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This note was uploaded on 06/16/2008 for the course EAS 1109 taught by Professor Cisne during the Fall '07 term at Cornell University (Engineering School).

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