|
Circomphalus Disjectus
''Circomphalus'' is a genus of saltwater clams, marine (ocean), marine bivalve molluscs in the family (biology), family Veneridae, the venus clams. Fossil records The genus ''Circomphalus'' is known from the Miocene to the Holocene, Recent periods (age range: from 15.97 to 0.0 million years ago). Species Species within this genus, according to ITIS, include: * ''Circomphalus callimorphus'' (Dall, 1902) * ''Circomphalus casina'' (Linnaeus, 1758) * ''Circomphalus fordi'' (Yates, 1890) * ''Circomphalus strigillinus'' (Dall, 1902) According to the World Register of Marine Species, the species are: * ''Circomphalus disjectus'' (Perry, 1811) * ''Circomphalus foliaceolamellosus'' (Dillwyn, 1817) * ''Circomphalus hiraseanus'' (Kuroda, 1930) * ''Circomphalus yatei'' (Gray, 1835) References Veneridae Bivalve genera {{Veneridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circomphalus Foliaceolamellosus
''Circomphalus foliaceolamellosus'' is a species of saltwater clam, a marine (ocean), marine bivalve mollusc in the family (biology), family Veneridae, the venus clams. Right and left valve of the same specimen: File:Circomphalus foliaceolamellosus 01.jpg, Right valve File:Circomphalus foliaceolamellosus 02.jpg, Left valve Fossil records The genus ''Circomphalus'' is known from the Miocene to the Holocene, Recent periods (age range: from 15.97 to 0.0 million years ago). Description Valves of ''Circomphalus foliaceolamellosus'' can reach a size of about . Distribution This species can be found on the coasts of Senegal and surroundings. References External links AnimalbaseEncyclopedia of life Veneridae Bivalves described in 1817 {{Veneridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ITIS
The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagency group within the US federal government, involving several US federal agencies, and has now become an international body, with Canadian and Mexican government agencies participating. The database draws from a large community of taxonomic experts. Primary content staff are housed at the Smithsonian National Museum of Natural History and IT services are provided by a US Geological Survey facility in Denver. The primary focus of ITIS is North American species, but many biological groups exist worldwide and ITIS collaborates with other agencies to increase its global coverage. Reference database ITIS provides an automated reference database of scientific and common names for species. it contains over 839,000 scientific names, synonyms, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circomphalus Hiraseanus
''Circomphalus'' is a genus of saltwater clams, marine bivalve molluscs in the family Veneridae, the venus clams. Fossil records The genus ''Circomphalus'' is known from the Miocene to the Recent periods (age range: from 15.97 to 0.0 million years ago). Species Species within this genus, according to ITIS, include: * '' Circomphalus callimorphus'' (Dall, 1902) * '' Circomphalus casina'' (Linnaeus, 1758) * '' Circomphalus fordi'' (Yates, 1890) * '' Circomphalus strigillinus'' (Dall, 1902) According to the World Register of Marine Species, the species are: * ''Circomphalus disjectus'' (Perry, 1811) * ''Circomphalus foliaceolamellosus ''Circomphalus foliaceolamellosus'' is a species of saltwater clam, a marine (ocean), marine bivalve mollusc in the family (biology), family Veneridae, the venus clams. Right and left valve of the same specimen: File:Circomphalus foliaceolame ...'' (Dillwyn, 1817) * '' Circomphalus hiraseanus'' (Kuroda, 1930) * '' Circomphalus yatei'' (Gray, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circomphalus Disjectus
''Circomphalus'' is a genus of saltwater clams, marine (ocean), marine bivalve molluscs in the family (biology), family Veneridae, the venus clams. Fossil records The genus ''Circomphalus'' is known from the Miocene to the Holocene, Recent periods (age range: from 15.97 to 0.0 million years ago). Species Species within this genus, according to ITIS, include: * ''Circomphalus callimorphus'' (Dall, 1902) * ''Circomphalus casina'' (Linnaeus, 1758) * ''Circomphalus fordi'' (Yates, 1890) * ''Circomphalus strigillinus'' (Dall, 1902) According to the World Register of Marine Species, the species are: * ''Circomphalus disjectus'' (Perry, 1811) * ''Circomphalus foliaceolamellosus'' (Dillwyn, 1817) * ''Circomphalus hiraseanus'' (Kuroda, 1930) * ''Circomphalus yatei'' (Gray, 1835) References Veneridae Bivalve genera {{Veneridae-stub ... [...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 catalogue and 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 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circomphalus Strigillinus
''Circomphalus'' is a genus of saltwater clams, marine bivalve molluscs in the family Veneridae, the venus clams. Fossil records The genus ''Circomphalus'' is known from the Miocene to the Recent periods (age range: from 15.97 to 0.0 million years ago). Species Species within this genus, according to ITIS, include: * '' Circomphalus callimorphus'' (Dall, 1902) * '' Circomphalus casina'' (Linnaeus, 1758) * '' Circomphalus fordi'' (Yates, 1890) * '' Circomphalus strigillinus'' (Dall, 1902) According to the World Register of Marine Species, the species are: * ''Circomphalus disjectus'' (Perry, 1811) * ''Circomphalus foliaceolamellosus'' (Dillwyn, 1817) * ''Circomphalus hiraseanus ''Circomphalus'' is a genus of saltwater clams, marine bivalve molluscs in the family Veneridae, the venus clams. Fossil records The genus ''Circomphalus'' is known from the Miocene to the Recent periods (age range: from 15.97 to 0.0 million ye ...'' (Kuroda, 1930) * '' Circomphalus yatei'' (Gray, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene is an interglacial period within the ongoing Ice age, glacial cycles of the Quaternary, and is equivalent to Marine isotope stages, Marine Isotope Stage 1. The Holocene correlates with the last maximum axial tilt towards the Sun of the Earth#Axial tilt and seasons, Earth's obliquity. The Holocene corresponds with the rapid proliferation, growth, and impacts of the human species worldwide, including Recorded history, all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban culture, urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global significance for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene followed the Oligocene and preceded the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by distinct global events but by regionally defined transitions from the warmer Oligocene to the cooler Pliocene Epoch. During the Early Miocene, Afro-Arabia collided with Eurasia, severing the connection between the Mediterranean and Indian Oceans, and allowing the interchange of fauna between Eurasia and Africa, including the dispersal of proboscideans and Ape, hominoids into Eurasia. During the late Miocene, the conn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veneridae
The Veneridae or venerids, common name: Venus (mythology), Venus clams, are a very large family of minute to large, saltwater clams, marine bivalve molluscs. Over 500 living species of venerid bivalves are known, most of which are edible, and many of which are exploited as food sources. Many of the most important edible species are commonly known (in the USA) simply as "clams". Venerids make up a significant proportion of the world fishery of edible bivalves. The family includes some species that are important commercially, such as (in the USA) the hard clam or quahog, ''Mercenaria mercenaria''. Taxonomy The classification within the family Veneridae has been controversial at least since the 1930s. Molecular approaches show that much of this traditional classification is unnatural. Some common species have been moved between genera (including genera in different subfamilies) because of repeated attempts to bring a more valid organization to the classification or Taxonomy (biol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
