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How was the Carboniferous period different from the Devonian period ?
Weegy: Carboniferous tetrapods are four-legged animals that lived during the Carboniferous period, between 359 and 299 million years ago. [ These animals, including amphibians, reptiles, and basal tetrapods, initially evolved about 365 million years ago, at the very end of the Devonian period. They evolved from lobe-finned fish, such as the living coelocanth. At the time, the world was very warm and wet, and covered in shallow, tree-choked swamps. Insect life and foliage was abundant on the land, which the Carboniferous tetrapods could feast on in the essential absence of predators. ] (More)
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Asked 4/8/2013 6:46:39 AM
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How was the Carboniferous period different from the Devonian period ?
Weegy: he Carboniferous Period lasted from about 359.2 to 299 million years ago* during the late Paleozoic Era. The term "Carboniferous" comes from England, in reference to the rich deposits of coal that occur there. [ These deposits of coal occur throughout northern Europe, Asia, and midwestern and eastern North America. The term "Carboniferous" is used throughout the world to describe this period, although in the United States it has been separated into the Mississippian (early Carboniferous) and the Pennsylvanian (late Carboniferous) Subsystems. This division was established to distinguish the coal-bearing layers of the Pennsylvanian from the mostly limestone Mississippian, and is a result of differing stratigraphy on the different continents. The Mississippian and Pennsylvanian, in turn, are subdivided into a number of internationally recognized stages based on evolutionary successions of fossil groups . These stages are (from early to late) Tournaisian, Visean, and Serpukhovian for the Mississippian — and Bashkirian, Moscovian, Kasimovian, and Gzhelian for the Pennsylvanian. Coal swamp The Carboniferous Period is famous for its vast swamp forests, such as the one depicted here. Such swamps produced the coal from which the term Carboniferous, or "carbon-bearing," is derived. In addition to having the ideal conditions for the formation of coal, several major biological, geological, and climatic events occurred during this time. Biologically, we see one of the greatest evolutionary innovations of the Carboniferous: the amniote egg, which allowed for the further exploitation of the land by certain tetrapods. It gave the ancestors of birds, mammals, and reptiles the ability to lay their eggs on land without fear of desiccation. Geologically, the Late Carboniferous collision of Laurasia (present-day Europe, Asia, and North America) into Gondwana (present-day Africa, South America, Antarctica, Australia, and India) produced the Appalachian Mountain belt of eastern ... (More)
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Asked 4/8/2013 6:45:16 AM
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How was the Carboniferous period different from the Devonian period ?
Weegy: The Devonian Period of the Paleozoic Era lasted from 417 million years ago to 354 million years ago. It is named for Devon, England where the old red sandstone of the Devonian was first studied. [ While the Carboniferous Period of the Paleozoic Era began 354 million years ago. It lasted for about 64 million years, until 290 million years ago. The name “Carboniferous” came from the large amounts of carbon-bearing coal that was formed during the period. ] (More)
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Asked 4/8/2013 6:46:35 AM
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Crude oil is separated into useful compounds by: a. Fractional distillation c. Electrolysis b. Differential cooling d. Compression
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Updated 5/8/2013 6:21:47 AM
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Crude oil is separated into useful compounds by Fractional distillation.
Added 5/8/2013 6:21:47 AM
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