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pterosaur
(Encyclopedia) pterosaurpterosaurtĕrˈəsôrˌ [key] [Gr., = winged lizard], extinct flying reptile (commonly called pterodactyl [Gr., = wing finger]) of the order Pterosauria, common in the late…Mesozoic era
(Encyclopedia) Mesozoic eraMesozoic eramĕzˌəzōˈĭk [key] [Gr.,=middle life], major division of geologic time (see Geologic Timescale, tablegeologic timescale, table) from 65 to 225 million years ago.…reptile
(Encyclopedia) reptile, name for the dry-skinned, usually scaly, cold-blooded vertebrates (see Chordata) of the order Reptilia. Reptiles are found in a variety of habitats throughout the warm and…amber
(Encyclopedia) amber, fossilized tree resin. Amber can vary in color from yellow to red to green and blue. The best commercial amber is transparent, but some varieties are cloudy. To be called amber…Geology of the Grand Canyon: Chapter Iv. The Great Denudation.
CHAPTER III. THE TERRACES.CHAPTER V. THE TOROWEAP AND UINKARET.CHAPTER IV. THE GREAT DENUDATION.Before leaving the terraces we may with advantage pause to contemplate the great lesson in…mass extinction
(Encyclopedia) mass extinction, the extinction of a large percentage of the earth's species, opening ecological niches for other species to fill. There have been at least ten such events. The five…Smelliest Plant
Rafflesia arnoldii Each bloom can be as big as 3 feet wide and can weigh up to 24 pounds. The reddish-brown flower, which emits a revolting odor, is found in Southeast Asia (primarily Borneo and…Dinosaur Fossils (By U.S. State!)
Top of Page Source: iStockMost people are familiar with their state’s official flower and flag, but did you know that almost every state has an official fossil as well? These state symbols are a…Audible Snowflakes and Other Discoveries
More science highlights discovered in 2000 by Otto Johnson More Discoveries IntroductionIce Age Haute CoutureAntisocial Brain Tissue DeficitNew Orleans, the New Atlantis?First…Geology of the Grand Canyon: Chapter Ii. Geography Of The Grand CaÃÂon District.
CHAPTER I. THE PLATEAU PROVINCE.CHAPTER III. THE TERRACES.CHAPTER II. GEOGRAPHY OF THE GRAND CAíON DISTRICT.The Grand Cañon District-the region draining into the Grand and Marble Cañons-is…Trending
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