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Gervillia Hagenowi
''Gervillia'' is an extinct genus of prehistoric bivalves belonging to the family Bakevelliidae. Fossil records This genus is known in the fossil record from the Carboniferous period to the Eocene period (from about 313.8 to 37.2 million years ago). Fossils of species within this genus have been found in marine sediments all over the world. Species Species within this genus include: * † ''Gervillia alaeformis'' Sowerby 1819 * † ''Gervillia alatior'' Imlay 1940 * † ''Gervillia angulata'' Münster 1841 * † ''Gervillia angusta'' Munster 1838 * † ''Gervillia cholla'' Stoyanow 1949 * † ''Gervillia dissita'' White 1887 * † ''Gervillia galcazzi'' Stoppani 1863 * † ''Gervillia heinemani'' Stoyanow 1949 * † ''Gervillia inflata'' Schafhautl * † ''Gervillia iraonensis'' Newton 1895 * † ''Gervillia lanpingensis'' Chen 1976 * † ''Gervillia longa'' Geinitz 1867 * † ''Gervillia metaforbesian''a Amano and Matsumoto 1956 * † ''Gervillia quadrata'' Chen 1976 * † ''Ger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' ("coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
