PPT-MESOZOIC

ERA EARTH SCIENCE MESOZOIC The  Mesozoic Era  is an interval of geological time from about 250 million years ago to about 65 million years ago It is called the  Age of  Dinosaurs because. ERA PERIOD TIME SCALE ( ) QUATERNARY Holocene 0.01 Pleistocene 1 TERTIARY Pliocene 10 Miocene 25 Oligocene 40 Eocene 60 GEOLOGICAL Paleocene 70 TIME SCALE MESOZOIC Cretacious 135 (SECONDARY) Jurassic Indian Journal of Earth Sciences, Vol-30, No. 1-4, p. 1-28, 2003 evolutionary trends. According to him (Gould, 1988), changes of variance can explain many trends. However, one biotically driven attri Monotremes. Luo. et al. (2002).. Node labeled 1 indicates our (stable) . clade. -based definition of . Mammalia. .. This is the commonly used crown-. clade. definition.. Luo. et al. (2002).. We’ll look first at the . Triassic 250-205. Pangaea. Jurassic 205-140. Laurasia and Gondwana. Cretaceous 140-65. Formation of present day continents. Hot and dry. Polar regions moist . and temperate . Warm and dry. No ice caps at poles. GEOL 2110. The . Mesozoic . Era. Tectonic and Geologic History . In North America. Major Concepts. The geologic history of North America during the Mesozoic Era was dominated by two contrasting tectonic processes :. the emplacement of . massive . plutons. created the Sierra Nevada. Nevadan . orogeny. gold was discovered at Sutter's Mill . on the South Fork of the American River at Coloma, California. On January 24, 1848, James Marshall, . Triassic 250-205. Pangaea. Jurassic 205-140. Laurasia and Gondwana. Cretaceous 140-65. Formation of present day continents. Hot and dry. Polar regions moist . and temperate . Warm and dry. No ice caps at poles. (Age of the reptiles). By Mattie and Hanna. Era:. Mesozoic. Periods:. Cretaceous, Jurassic, and Triassic. Length:. 185.5 Years. About. Triassic. reference.com. Geologic Conditions. At the beginning of this period, the major landmasses of the world were collected into the supercontinent Pangea.. A) is an essential part of the gradualist model of evolution. B) refers to morphological stasis, not molecular stasis. C) suggests strong directional selection. D) is more likely in . dueterostomes. E) none of the above. Chapter 14 Lesson 3. 248 mya to 65 mya. Dinosaurs roam the Earth. Tremendous plate movement occurs breaking Pangaea up. The Mesozoic Era. Beginning of Mesozoic all land was joined as the Supercontinent Pangaea. Organization of . Ch. 21-24. Ch. 21.1 – Describes the geologic time scale. Ch. 22 – Precambrian Earth. . Section 1: Early Earth. . Section 2: Formation of the Crust and Continents. . Section 3: Formation of the Atmosphere and Oceans. Marko Manojlovic . UC Santa Cruz. Brachiopods vs Bivalves. “Every zoologist acknowledges the inferiority of the . Bryozoa. and the Brachiopods when compared with the [Bivalves]….Now if any fact is well established in Paleontology, it is the . Marko Manojlovic. UC Santa Cruz. Brachiopods vs Bivalves. “. Every zoologist acknowledges the inferiority of the . Bryozoa. and the Brachiopods when compared with the . [. B. ivalves. ]….Now if any fact is well established in . (Cu-Au ± Ag-Pt-. Pd. -Mo) in the Canadian Cordillera. James Logan . Mitchell . Mihalynuk. 0.707. 0.705. 0.704. Canadian Cordilleran Porphyry Deposits. Cordilleran terranes. Stikine arc. Quesnel arc.