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Geological Time Scale Range Chart Million Era Period Years ago Notable events Historic time Quaternary 0.01 Extinction of many large mammals; modern humans appear 1.80 Early humans emerge (genus Homo) 5 Grasses replace forests in drier areas 23 Rise of several modern mammals Tertiary 35 Earliest whale fossils; first horses 56 First primate fossils Extinction of dinosaurs 65 Cretaceous Angiosperms replace gymnosperms in many habitats 146 First bird fossil (Archaeopteryx) First flowering plants (Angiosperms) Jurassic 200 Triassic First dinosaurs and mammals 251 Permian First mammal-like reptiles 299 First reptiles First gymnosperms Carboniferous 359 First seed-bearing plants Fish-to-tetrapod transition Devonian 416 Silurian Early jawed fishes First fossils of land animals 444 First plant fossils First fungus fossils Ordovician 488 First fossil of chordate (ancestors of vertebrates) Cambrian Explosion Cambrian 542 635 First animal fossils 1,200 First multicellular life 2,000 First eukaryotic fossils 2,400 First substantial oxygen accumulation in atmosphere 3,400 Evidence of abundant bacterial and archaeal life 3,800 Possible evidence of earliest life on Earth 4,600 Earth is formed 2011 Pearson Education, Inc. Fossil #: 2 Page 5 of 17 Precambrian Paleozoic Mesozoic Cenozoic N Batostomella gracilis

Geological Time Scale Range Chart Million Era Period Years ago Notable events Historic time Quaternary 0.01 Extinction of many large mammals; modern humans appear 1.80 Early humans emerge (genus Homo) 5 Grasses replace forests in drier areas 23 Rise of several modern mammals Tertiary 35 Earliest whale fossils; first horses 56 First primate fossils Extinction of dinosaurs 65 Cretaceous Angiosperms replace gymnosperms in many habitats 146 First bird fossil (Archaeopteryx) First flowering plants (Angiosperms) Jurassic 200 Triassic First dinosaurs and mammals 251 Permian First mammal-like reptiles 299 First reptiles First gymnosperms Carboniferous 359 First seed-bearing plants Fish-to-tetrapod transition Devonian 416 Silurian Early jawed fishes First fossils of land animals 444 First plant fossils First fungus fossils Ordovician 488 First fossil of chordate (ancestors of vertebrates) Cambrian Explosion Cambrian 542 635 First animal fossils 1,200 First multicellular life 2,000 First eukaryotic fossils 2,400 First substantial oxygen accumulation in atmosphere 3,400 Evidence of abundant bacterial and archaeal life 3,800 Possible evidence of earliest life on Earth 4,600 Earth is formed 2011 Pearson Education, Inc. Fossil #: 2 Page 5 of 17 Precambrian Paleozoic Mesozoic Cenozoic N Batostomella gracilis

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Shade the geological time range for each fossilized organism, marking the time period where each fossil belongs to in a darker color (see example for fossil #2: Batostomella gracilis ): Fossil #7: Mucrospirifer thedfordensis Fossil #16: Cardioceras species Fossil #17: Dinosaur bone Fossil #21: Otodus species Fossil #23: Dentalium sexangulare Fossil #24: Physa humerosa
Geological Time Scale Range Chart Million Era Period Years ago Notable events Historic time Quaternary 0.01 Extinction of many large mammals; modern humans appear 1.80 Early humans emerge (genus Homo) 5 Grasses replace forests in drier areas 23 Rise of several modern mammals Tertiary 35 Earliest whale fossils; first horses 56 First primate fossils Extinction of dinosaurs 65 Cretaceous Angiosperms replace gymnosperms in many habitats 146 First bird fossil (Archaeopteryx) First flowering plants (Angiosperms) Jurassic 200 Triassic First dinosaurs and mammals 251 Permian First mammal-like reptiles 299 Carboniferous First reptiles First gymnosperms 359 First seed-bearing plants Fish-to-tetrapod transition Devonian 416 Silurian Early jawed fishes First fossils of land animals 444 First plant fossils First fungus fossils Ordovician 488 First fossil of chordate (ancestors of vertebrates) Cambrian Explosion Cambrian 542 635 First animal fossils 1,200 First multicellular life 2,000 First eukaryotic fossils 2,400 First substantial oxygen accumulation in atmosphere 3,400 Evidence of abundant bacterial and archaeal life Possible evidence of earliest life on Earth 3,800 4,600 Earth is formed 2011 Pearson Education, Inc. Fossil #: 2 Page 5 of 17 Precambrian Paleozoic Mesozoic Cenozoic N Batostomella gracilis
Transcribed Image Text:Geological Time Scale Range Chart Million Era Period Years ago Notable events Historic time Quaternary 0.01 Extinction of many large mammals; modern humans appear 1.80 Early humans emerge (genus Homo) 5 Grasses replace forests in drier areas 23 Rise of several modern mammals Tertiary 35 Earliest whale fossils; first horses 56 First primate fossils Extinction of dinosaurs 65 Cretaceous Angiosperms replace gymnosperms in many habitats 146 First bird fossil (Archaeopteryx) First flowering plants (Angiosperms) Jurassic 200 Triassic First dinosaurs and mammals 251 Permian First mammal-like reptiles 299 Carboniferous First reptiles First gymnosperms 359 First seed-bearing plants Fish-to-tetrapod transition Devonian 416 Silurian Early jawed fishes First fossils of land animals 444 First plant fossils First fungus fossils Ordovician 488 First fossil of chordate (ancestors of vertebrates) Cambrian Explosion Cambrian 542 635 First animal fossils 1,200 First multicellular life 2,000 First eukaryotic fossils 2,400 First substantial oxygen accumulation in atmosphere 3,400 Evidence of abundant bacterial and archaeal life Possible evidence of earliest life on Earth 3,800 4,600 Earth is formed 2011 Pearson Education, Inc. Fossil #: 2 Page 5 of 17 Precambrian Paleozoic Mesozoic Cenozoic N Batostomella gracilis
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