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Petrified Forest National Park
(Encyclopedia) Petrified Forest National Park, 93,533 acres (37,881 hectares), E Ariz.; est. as a national monument 1906, designated a national park 1962. A part of the Painted Desert, it contains…Table of Geological Periods
It is generally assumed that planets are formed by the accretion of gas and dust in a cosmic cloud, but there is no way of estimating the length of this process. Our Earth acquired its present size…ginkgo
(Encyclopedia) ginkgoginkgogĭngˈkō [key] or maidenhair tree, tall, slender, picturesque deciduous tree (Ginkgo biloba) with fan-shaped leaves. The ginkgo is native to E China, where it was revered by…Geology of the Grand Canyon: The Trias.
THE JURASSIC.THE VERMILION CLIFFS.THE TRIAS.Kanab village is situated under the eaves of the Vermillion Cliffs, in the jaws of the cañon of Kanab Creek. It has for several years been the…Geology of the Grand Canyon: The Temples And Towers Of The Virgen.
THE VERMILION CLIFFS.THE PERMIAN.THE TEMPLES AND TOWERS OF THE VIRGEN.At our feet the surface drops down by cliff and talus 1,200 feet upon a broad and rugged plain cut by narrow cañons. The…Earliest Dinosaur:
Eoraptor lunensisMeaning of Name: “dawn plunderer”Period:Triassic Period (240 to 205 million years ago)Size:1 meter longLocation:Argentina The earliest known dinosaur was Eoraptor lunensis,…Geology of the Grand Canyon: The Permian.
THE TEMPLES AND TOWERS OF THE VIRGEN.THE PERMIAN.The idea of a terrace is not so typically represented in the Permian as it is in the superior formations. In many parts of the great stairway…First Discovered:
IguanodonMeaning of Name:“iguana tooth”Period: Triassic Period (240 to 205 million years ago)Size: 9 - 10 meters longWeight: 4.5 - 5.5 metric tonsLocation:England, Belgium, Germany, Spain,…Geologic Timescale (table)
(Encyclopedia) Geologic Timescale Era Period Epoch Approximate duration (millions of years) Approximate number of years ago (millions of years) Cenozoic Quaternary Holocene 10,000 years ago to…Geology of the Grand Canyon: The Jurassic.
THE CRETACEOUS.THE TRIAS.THE JURASSIC.Beyond the Cretaceous, as we descend the stairway of terraces, the Jurassic comes to daylight. It forms a belt encircling the Cretaceous and outside of…Trending
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