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Neotrigonia
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus ''Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Horia
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus '' Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Bednalli
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus '' Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Uniophora
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...s in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus ''Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Strangei
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus '' Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Lamarckii
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus ''Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Kaiyomaruae
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus '' Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Jacksoni
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus '' Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Gemma
''Neotrigonia'' is a genus of living saltwater clams, marine bivalve mollusks in the family Trigoniidae, which otherwise consists only of fossil genera. For a long time the entire family was thought to be long extinct, but a living species that is now placed in this genus was discovered in 1802. At that time it was assigned to the fossil genus '' Trigonia''. Currently, according to the World Register of Marine Species, 8 species in this genus are recognized. Discovery of the genus Until the beginning of the 19th century, no living species in this superfamily had ever been discovered, although numerous fossil species were known. The superfamily was well known as fossils from the Devonian to the Cretaceous Period. In 1802, however, François Péron discovered a living species in waters off the coast of Tasmania. In 1804, Lamarck named that species ''Trigonia margaritacea'', and Cossmann renamed the genus ''Neotrigonia'' in 1912. Today, eight living species are known to exist, all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotrigonia Margaritacea
''Neotrigonia margaritacea'', common name the pearly brooch-shell, is a species of saltwater clam, a marine bivalve mollusc in the family Trigoniidae. This species is known from sandy substrates in shallow seas in southeastern and southwestern Australia. This species was the first member of the family to be discovered alive; previous to its discovery, trigoniids were only known from fossils. History Jean-Baptiste Lamarck first described ''Neotrigonia margaritacea'' (under the name ''Trigonia margaritacea'') in 1804. It was what is now known as a "living fossil", being the first known living member of the Trigoniidae, a family of bivalve mollusks that was well known from fossils, but that had been thought to have become extinct not long after the end of the Mesozoic Era. In 1912, Cossman renamed the genus '' Neotrigonia'', and this genus now contains several other species discovered subsequently, all from the waters around Australia and Tasmania. Description The shell of '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trigoniidae
Trigoniidae is a taxonomic family of saltwater clams, marine bivalve mollusks in the superfamily Trigonioidea. There is only one living genus, ''Neotrigonia'', but in the geological past this family was well represented, widespread and common. The shells of species in this family are morphologically unusual, with very elaborate hinge teeth, and the exterior of the shell is highly ornamented. Description The most striking feature of the Trigoniidae, which has attracted attention for centuries, is their external ornamentation. This is usually present as ribs or costae, or rows of aligned tubercles. The hinge teeth of the shell are unusually elaborate in structure. The living animal has no siphon. Origin This family originated from the Myophoriidae in the Triassic. The family underwent an explosion of diversity in the Jurassic, reaching a maximum of diversity in the Cretaceous, although most genera became extinct at the end of this period. Although they were abundant in the Mesoz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamarck
Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biological evolution occurred and proceeded in accordance with natural laws. Lamarck fought in the Seven Years' War against Prussia, and was awarded a commission for bravery on the battlefield. Posted to Monaco, Lamarck became interested in natural history and resolved to study medicine. Packard (1901), p. 15. He retired from the army after being injured in 1766, and returned to his medical studies. Lamarck developed a particular interest in botany, and later, after he published the three-volume work ''Flore françoise'' (1778), he gained membership of the French Academy of Sciences in 1779. Lamarck became involved in the Jardin des Plantes and was appointed to the Chair of Botany in 1788. When the French National Assembly founded the Muséum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalvia
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estim ... that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, Cockle (bivalve), cockles, mussels, scallops, and numerous other family (biology), families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into Ctenidium (mollusc), ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
