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Pinna (bivalve)
''Pinna'' is a genus of bivalve molluscs belonging to the family Pinnidae. MolluscaBase eds. (2022). MolluscaBase. Pinna Linnaeus, 1758. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=138352 on 2022-01-16 The type species of the genus is '' Pinna rudis''. The most completely studied species in the genus is '' P. nobilis'', a Mediterranean pen shell which was historically important as the principal source of sea silk. Description These pen shells can reach a length of about . They are characterized by thin, elongated, wedge-shaped, and almost triangular shells with long, toothless edges. The surface of the shells shows radial ribs over their entire length. ''Pinna'' is distinguished from its sibling genus ''Atrina'' by the presence of a sulcus dividing the nacreous region of the valves, and the positioning of the adductor scar on the dorsal side of shells. These bivalves most commonly lie point-first on the sea ... [...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] |
Adductor Muscles (bivalve)
The adductor muscles are the main muscular system in bivalve mollusks (e.g. in clams, scallops, mussels, oysters, etc.). In many parts of the world, when people eat scallops, the adductor muscles are the only part of the animal which is eaten. Adductor muscles leave noticeable scars or marks on the interior of the shell's valves. Those marks (known as adductor muscle scars) are often used by scientists who are in the process of identifying empty shells to determine their correct taxonomic placement. Bivalve mollusks generally have either one or two adductor muscles. The muscles are strong enough to close the valves of the shell when they contract, and they are what enable the animal to close its valves tightly when necessary, such as when the bivalve is exposed to the air by low water levels, or when it is attacked by a predator. Most bivalve species have two adductor muscles, which are located on the anterior and posterior sides of the body. Some families of bivalves have on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinna Attenuata
''Pinna attenuata'' is a species of bivalves belonging to the family Pinnidae. The species is found in Japan, Malesia Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms, and also a phytogeographical floristic region in the Paleotropical Kingdom. It has been given different definitions. The .... References Pinnidae {{Improve categories, date=February 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Brettingham Sowerby I
George Brettingham Sowerby I (12 August 1788 – 26 July 1854) was a British naturalist, illustrator and conchologist. Life He was the second son of James Sowerby. George was educated at home under private tutors, and afterwards assisted his father in the production of illustrated works on natural history. On the latter's death in 1822, he and his brother James De Carle Sowerby continued their father's work on fossil shells, publishing the latter parts of the ''Mineral Conchology of Great Britain''. He published about 50 papers on molluscs and started several comprehensive, illustrated books on the subject, the most important the ''Thesaurus Conchyliorum'', a work that was continued by his son, George Brettingham Sowerby II and his grandson George Brettingham Sowerby III. One of his first works was the cataloguing of the collection of the Earl of Tankerville. He also dealt in shells and natural history objects, his place of business being first in King Street, Covent Garden, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinna Atropurpurea
Pinna may refer to: Biology * Pinna (anatomy), the outer part of the ear - also referred to as the ''auricle'' * ''Pinna'' (bivalve), a genus of bivalve molluscs also known as "pen shells" * Pinna (botany), a primary segment of a compound leaf * Brachypodium retusum, the Maltese name for the plant species. People with the surname * Christophe Pinna (born 1968), French martial artist * Giovanni Pinna, a paleontologist and describer of the Triassic reptile ''Drepanosaurus'' * Mattheus Pinna da Encarnaçao (1687–1764), Brazilian theologian * Nicola Pinna (born 1974), Italian chemist * Paola Pinna (born 1974), Italian politician * Salvatore Pinna (born 1975), Italian soccer player * Sandrine Pinna (born 1987), as 張榕容 (''Chang Jung-jung'' aka ''Zhāng Róngróng'')), Taiwanese actress People with the given name * Pinna Nesbit (1896–1950), Canadian silent film actress Places * Rosh Pinna, a settlement in Israel ** Rosh Pina Airport Other * , a Porpoise-class U.S. Nav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinna Arcuata
Pinna may refer to: Biology * Pinna (anatomy), the outer part of the ear - also referred to as the ''auricle'' * ''Pinna'' (bivalve), a genus of bivalve molluscs also known as "pen shells" * Pinna (botany), a primary segment of a compound leaf * Brachypodium retusum, the Maltese name for the plant species. People with the surname * Christophe Pinna (born 1968), French martial artist * Giovanni Pinna, a paleontologist and describer of the Triassic reptile ''Drepanosaurus'' * Mattheus Pinna da Encarnaçao (1687–1764), Brazilian theologian * Nicola Pinna (born 1974), Italian chemist * Paola Pinna (born 1974), Italian politician * Salvatore Pinna (born 1975), Italian soccer player * Sandrine Pinna (born 1987), as 張榕容 (''Chang Jung-jung'' aka ''Zhāng Róngróng'')), Taiwanese actress People with the given name * Pinna Nesbit (1896–1950), Canadian silent film actress Places * Rosh Pinna, a settlement in Israel ** Rosh Pina Airport Other * , a Porpoise-class U.S. Navy s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Baptiste 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 Naturalism (philosophy), 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, 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 Nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinna Angustana
Pinna may refer to: Biology * Pinna (anatomy), the outer part of the ear - also referred to as the ''auricle'' * ''Pinna'' (bivalve), a genus of bivalve molluscs also known as "pen shells" * Pinna (botany), a primary segment of a compound leaf * Brachypodium retusum, the Maltese name for the plant species. People with the surname * Christophe Pinna (born 1968), French martial artist * Giovanni Pinna, a paleontologist and describer of the Triassic reptile ''Drepanosaurus'' * Mattheus Pinna da Encarnaçao (1687–1764), Brazilian theologian * Nicola Pinna (born 1974), Italian chemist * Paola Pinna (born 1974), Italian politician * Salvatore Pinna (born 1975), Italian soccer player * Sandrine Pinna (born 1987), as 張榕容 (''Chang Jung-jung'' aka ''Zhāng Róngróng'')), Taiwanese actress People with the given name * Pinna Nesbit (1896–1950), Canadian silent film actress Places * Rosh Pinna, a settlement in Israel ** Rosh Pina Airport Other * , a Porpoise-class U.S. Navy s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinna Affinis
Pinna may refer to: Biology * Pinna (anatomy), the outer part of the ear - also referred to as the ''auricle'' * ''Pinna'' (bivalve), a genus of bivalve molluscs also known as "pen shells" * Pinna (botany), a primary segment of a compound leaf * Brachypodium retusum, the Maltese name for the plant species. People with the surname * Christophe Pinna (born 1968), French martial artist * Giovanni Pinna, a paleontologist and describer of the Triassic reptile ''Drepanosaurus'' * Mattheus Pinna da Encarnaçao (1687–1764), Brazilian theologian * Nicola Pinna (born 1974), Italian chemist * Paola Pinna (born 1974), Italian politician * Salvatore Pinna (born 1975), Italian soccer player * Sandrine Pinna (born 1987), as 張榕容 (''Chang Jung-jung'' aka ''Zhāng Róngróng'')), Taiwanese actress People with the given name * Pinna Nesbit (1896–1950), Canadian silent film actress Places * Rosh Pinna, a settlement in Israel ** Rosh Pina Airport Other * , a Porpoise-class U.S. Navy s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now- extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
