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Ostrea Anomiaeformis
''Ostrea'' is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. Fossil records Although molecular studies suggest that ''Ostrea'' first appeared around the Eocene and originated no earlier than the Cretaceous, paleontologists have historically applied the genus to almost all fossil oysters from the Permian onward, many of which are only superficially similar to extant ''Ostrea''. As a result, the genus ''Ostrea'' includes about 150 extinct species. History At least one species within this genus, ''Ostrea lurida'', has been recovered in archaeological excavations along the Central California coast of the Pacific Ocean, demonstrating it was a marine taxon exploited by the Native American Chumash people as a food source. Species Species in the genus ''Ostrea'' include: * † '' Ostrea albertensis'' Russell & Landes, 1937 * '' Ostrea algoensis'' G. B. Sowerby II, 1871 *'' Ostrea angasi'' G.B. Sowerby II, 1871 * '' Ostrea angelica'' Roche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the sixth and last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the Perm Governorate, region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the Sauropsida, sauropsids (reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central California
Central California is generally thought of as the middle third of the U.S. state of California, north of Southern California (which includes Los Angeles and San Diego) and south of Northern California (which includes San Francisco and San Jose, California, San Jose). It includes the northern portion of the San Joaquin Valley (which itself is the southern portion of the Central Valley (California), Central Valley, beginning at the Sacramento–San Joaquin River Delta), part of the Central Coast (California), Central Coast, the central hills of the California Coast Ranges and the foothills and mountain areas of the Sierra Nevada (U.S.), central Sierra Nevada. Central California is considered to be west of the crest of the Sierra Nevada (U.S.), Sierra Nevada. East of the Sierra is Eastern California. The largest cities in the region (over 50,000 population), from most to least populous, are Sacramento, California, Sacramento, Fresno, California, Fresno, Bakersfield, California, Bak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostrea Arcula
''Ostrea'' is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. Fossil records Although molecular studies suggest that ''Ostrea'' first appeared around the Eocene and originated no earlier than the Cretaceous, paleontologists have historically applied the genus to almost all fossil oysters from the Permian onward, many of which are only superficially similar to extant ''Ostrea''. As a result, the genus ''Ostrea'' includes about 150 extinct species. History At least one species within this genus, ''Ostrea lurida'', has been recovered in archaeological excavations along the Central California coast of the Pacific Ocean, demonstrating it was a marine taxon exploited by the Native American Chumash people as a food source. Species Species in the genus ''Ostrea'' include: * † '' Ostrea albertensis'' Russell & Landes, 1937 * '' Ostrea algoensis'' G. B. Sowerby II, 1871 *'' Ostrea angasi'' G.B. Sowerby II, 1871 * '' Ostrea angelica'' Roche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Von Roemer
Carl Ferdinand von Roemer (5 January 1818 – 14 December 1891), German geologist, had originally been educated for the legal profession at Göttingen, but became interested in geology, and abandoning law in 1840, studied science at the University of Berlin, where he graduated Ph.D. in 1842. Two years later he published his first work, ''Das Rheinische Ubergangsgebirge'' (1844), in which he dealt with the older rocks and fossils. In 1845 he paid a visit to America, and devoted a year and a half to a careful study of the geology of Texas and other Southern states. He published at Bonn in 1849 a general work entitled ''Texas'', while the results of his investigations of the Cretaceous rocks and fossils were published three years later in a treatise, ''Die Kreidebildungen von Texas und ihre organischen Einschlusse'' (1852), which also included a general account of the geology, and gained for him the title Father of the geology of Texas. Subsequently, he published at Breslau ''D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostrea Anomiaeformis
''Ostrea'' is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. Fossil records Although molecular studies suggest that ''Ostrea'' first appeared around the Eocene and originated no earlier than the Cretaceous, paleontologists have historically applied the genus to almost all fossil oysters from the Permian onward, many of which are only superficially similar to extant ''Ostrea''. As a result, the genus ''Ostrea'' includes about 150 extinct species. History At least one species within this genus, ''Ostrea lurida'', has been recovered in archaeological excavations along the Central California coast of the Pacific Ocean, demonstrating it was a marine taxon exploited by the Native American Chumash people as a food source. Species Species in the genus ''Ostrea'' include: * † '' Ostrea albertensis'' Russell & Landes, 1937 * '' Ostrea algoensis'' G. B. Sowerby II, 1871 *'' Ostrea angasi'' G.B. Sowerby II, 1871 * '' Ostrea angelica'' Roche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostrea Angasi
The southern mud oyster, Australian flat oyster, native flat oyster, native mud oyster, or angasi oyster (''Ostrea angasi''), is endemic to southern Australia, ranging from Western Australia to southeast New South Wales and around Tasmania. ''Ostrea angasi'' superficially resembles ''Ostrea edulis'' and both species may be referred to with the name "flat oyster". However, the two species do not occur naturally in the same geographic distribution. Habitat This species is found in sheltered, silty or sand-bottomed estuaries at depths between 1 and 30 metres. Diet Flat oysters, like all other oyster species, are filter feeders, feeding on, and taking in anything small enough to be filtered in their gills. This may include plankton, microalgae or inorganic material. Predators Oyster growers at Coffin Bay, South Australia have observed stingrays eating their experimental commercial stocks of ''Ostrea angasi''. Commercial harvesting Extensive oyster reefs in southern Australia w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostrea Algoensis
''Ostrea'' is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. Fossil records Although molecular studies suggest that ''Ostrea'' first appeared around the Eocene and originated no earlier than the Cretaceous, paleontologists have historically applied the genus to almost all fossil oysters from the Permian onward, many of which are only superficially similar to extant ''Ostrea''. As a result, the genus ''Ostrea'' includes about 150 extinct species. History At least one species within this genus, ''Ostrea lurida'', has been recovered in archaeological excavations along the Central California coast of the Pacific Ocean, demonstrating it was a marine taxon exploited by the Native American Chumash people as a food source. Species Species in the genus ''Ostrea'' include: * † '' Ostrea albertensis'' Russell & Landes, 1937 * '' Ostrea algoensis'' G. B. Sowerby II, 1871 *''Ostrea angasi'' G.B. Sowerby II, 1871 * ''Ostrea angelica'' Rochebr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
