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Acila Granulata
''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis ''Acila'' is a genus of marine Bivalvia, bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Mega-annum, Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' H ...'' Hinds, 1843 *'' Acila divaricata'' Hinds, 1843 *'' Acila fultoni'' E. A. Smith, 1892 *'' Acila granulata'' E. A. Smith, 1906 *'' Acila insignis'' Gould, 1861 *'' Acila jucunda'' Thiele, 1931 *'' Acila minutoides'' Kuroda & Habe in Habe, 1958 *'' Acila mirabilis'' A. Adams & Reeve, 1850 *'' Acila vigilia'' Schenck, 1936 References {{Taxonbar, from=Q9138917 Nuculidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albian
The Albian is both an age of the geologic timescale and a stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early/Lower Cretaceous Epoch/Series. Its approximate time range is 113.0 ± 1.0 Ma to 100.5 ± 0.9 Ma (million years ago). The Albian is preceded by the Aptian and followed by the Cenomanian. Stratigraphic definitions The Albian Stage was first proposed in 1842 by Alcide d'Orbigny. It was named after Alba, the Latin name for River Aube in France. A Global Boundary Stratotype Section and Point (GSSP), ratified by the IUGS in 2016, defines the base of the Albian as the first occurrence of the planktonic foraminiferan '' Microhedbergella renilaevis'' at the Col de Pré-Guittard section, Arnayon, Drôme, France. The top of the Albian Stage (the base of the Cenomanian Stage and Upper Cretaceous Series) is defined as the place where the foram species '' Rotalipora globotruncanoides'' first appears in the stratigraphic column. The Albia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene has been identified with the current warm period, known as MIS 1. It is considered by some to be an interglacial period within the Pleistocene Epoch, called the Flandrian interglacial.Oxford University Press – Why Geography Matters: More Than Ever (book) – "Holocene Humanity" section https://books.google.com/books?id=7P0_sWIcBNsC The Holocene corresponds with the rapid proliferation, growth and impacts of the human species worldwide, including all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...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] |
Nuculidae
Nuculidae is a family of small saltwater clams in the order Nuculida. Species in this family are commonly known as nut clams. The nomenclature of the Western European species in this family is still uncertain. Their systematics has been based mainly on their feces.WoRMS (2011). Nuculidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=204 on 2011-05-04 Genera * ''Acila'' H. Adams and A. Adams, 1858 * '' Adrana'' Adams and Adams, 1858 * '' Austronucula'' Powell, 1939 * '' Brevinucula'' Thiele, 1934 * '' Condylonucula'' D.R. Moore, 1977 * '' Ennucula'' Iredale, 1931 *'' Lamellinucula'' Schenck, 1944 * '' Leionucula'' Quenstedt, 1930 † * '' Linucula'' Marwick, 1931 * '' Neonucula'' Lan & Lee, 2001 * ''Nucula'' 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 so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mega-annum
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the mean ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acila Castrensis
''Acila'' is a genus of marine Bivalvia, bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Mega-annum, Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' Hinds, 1843 *''Acila divaricata'' Hinds, 1843 *''Acila fultoni'' E. A. Smith, 1892 *''Acila granulata'' E. A. Smith, 1906 *''Acila insignis'' Gould, 1861 *''Acila jucunda'' Thiele, 1931 *''Acila minutoides'' Kuroda & Habe in Habe, 1958 *''Acila mirabilis'' A. Adams & Reeve, 1850 *''Acila vigilia'' Schenck, 1936 References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acila Divaricata
''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' Hinds, 1843 *'' Acila divaricata'' Hinds, 1843 *'' Acila fultoni'' E. A. Smith, 1892 *''Acila granulata ''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis ''Acila'' is a genu ...'' E. A. Smith, 1906 *'' Acila insignis'' Gould, 1861 *'' Acila jucunda'' Thiele, 1931 *'' Acila minutoides'' Kuroda & Habe in Habe, 1958 *'' Acila mirabilis'' A. Adams & Reeve, 1850 *'' Acila vigilia'' Schenck, 1936 References {{Taxonbar, from=Q9138917 Nuculidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acila Fultoni
''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' Hinds, 1843 *''Acila divaricata'' Hinds, 1843 *'' Acila fultoni'' E. A. Smith, 1892 *''Acila granulata ''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis ''Acila'' is a genu ...'' E. A. Smith, 1906 *'' Acila insignis'' Gould, 1861 *'' Acila jucunda'' Thiele, 1931 *'' Acila minutoides'' Kuroda & Habe in Habe, 1958 *'' Acila mirabilis'' A. Adams & Reeve, 1850 *'' Acila vigilia'' Schenck, 1936 References {{Taxonbar, from=Q9138917 Nuculidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acila Granulata
''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis ''Acila'' is a genus of marine Bivalvia, bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Mega-annum, Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' H ...'' Hinds, 1843 *'' Acila divaricata'' Hinds, 1843 *'' Acila fultoni'' E. A. Smith, 1892 *'' Acila granulata'' E. A. Smith, 1906 *'' Acila insignis'' Gould, 1861 *'' Acila jucunda'' Thiele, 1931 *'' Acila minutoides'' Kuroda & Habe in Habe, 1958 *'' Acila mirabilis'' A. Adams & Reeve, 1850 *'' Acila vigilia'' Schenck, 1936 References {{Taxonbar, from=Q9138917 Nuculidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acila Insignis
''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' Hinds, 1843 *''Acila divaricata'' Hinds, 1843 *''Acila fultoni'' E. A. Smith, 1892 *''Acila granulata ''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis ''Acila'' is a genu ...'' E. A. Smith, 1906 *'' Acila insignis'' Gould, 1861 *'' Acila jucunda'' Thiele, 1931 *'' Acila minutoides'' Kuroda & Habe in Habe, 1958 *'' Acila mirabilis'' A. Adams & Reeve, 1850 *'' Acila vigilia'' Schenck, 1936 References {{Taxonbar, from=Q9138917 Nuculidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acila Jucunda
''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' Hinds, 1843 *''Acila divaricata'' Hinds, 1843 *''Acila fultoni'' E. A. Smith, 1892 *''Acila granulata'' E. A. Smith, 1906 *''Acila insignis ''Acila'' is a genus of marine bivalves in the family Nuculidae. ''Acila'' fossils have been found dating back to 113.0 Ma ago. Species As of March, 2021, the genus contains the following species: *''Acila castrensis'' Hinds, 1843 *''Acila ...'' Gould, 1861 *'' Acila jucunda'' Thiele, 1931 *'' Acila minutoides'' Kuroda & Habe in Habe, 1958 *'' Acila mirabilis'' A. Adams & Reeve, 1850 *'' Acila vigilia'' Schenck, 1936 References {{Taxonbar, from=Q9138917 Nuculidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
