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Amphithalamus Immigrus
''Amphithalamus immigrus'' is an extinct species of minute sea snails, marine gastropod mollusks or micromollusks in the family Anabathridae. Distribution Fossils of this species were found in Aquitaine Aquitaine (, ; ; ; ; Poitevin-Saintongeais: ''Aguiéne''), archaic Guyenne or Guienne (), is a historical region of southwestern France and a former Regions of France, administrative region. Since 1 January 2016 it has been part of the administ ..., France. References * Lozouet P. (1998). Nouvelles espèces de gastéropodes (Mollusca: Gastropoda) de l'Oligocène et du Miocène inférieur de l'Aquitaine (Sud-Ouest de la France). Cossmanniana. 5(3-4): 61-102. immigrus Gastropods described in 1998 {{paleo-gastropod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible Gastropod shell, shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain Neritidae, neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example, species in the genus ''Truncatella (gastropod), Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large and diverse group of animals. Most snails that live in salt water respire using a gill or gills; a few species, though, have a lung, are intertidal, and are active only at low tide w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean is the body of salt water that covers approximately 70.8% of Earth. The ocean is conventionally divided into large bodies of water, which are also referred to as ''oceans'' (the Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic Ocean),"Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, https://www.merriam-webster.com/dictionary/ocean . Accessed March 14, 2021. and are themselves mostly divided into seas, gulfs and subsequent bodies of water. The ocean contains 97% of [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and sea slug, slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca. It contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Furongian, Late Cambrian. , 721 family (taxonomy), families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently neontology, extant living fossil, with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and the proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater and even terrestrial species. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known extant i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micromollusk
A micromollusc is a shelled mollusc which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine molluscs, although in addition, numerous species of land snails and freshwater molluscs also reach adult size at very small dimensions. These tiny molluscs or their tiny shells are easy to overlook, as many of them are not very noticeable to the naked eye, and thus many people are not aware that they even exist. Nonetheless there are large numbers of families and vast numbers of mollusc species, in particular marine gastropods or sea snails, which are minute enough to be considered micromolluscs. Considerable numbers of marine gastropod species are only about 5 or 6 mm in adult size; many others are only about 2 or 3 mm in adult size; and a few have adult shells which are as small as one millimeter or even smaller still. Micromolluscs are known to have adult shells as small as 600 μm.Geiger et al 2007, Pg. 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anabathridae
Anabathridae is a family of sea snails, marine gastropod molluscs in the order Littorinimorpha. Genera * Genus '' Afriscrobs'' W.F. Ponder, 1983 **'' Afriscrobs adjacens'' ( E. A. Smith, 1910) **'' Afriscrobs africanus'' (Bartsch, 1915) **'' Afriscrobs minutissimus'' (Turton, 1932) **'' Afriscrobs muiri'' (Barnard, 1963) **'' Afriscrobs quantilla'' (Turton, 1932) **'' Afriscrobs saldadinensis'' (Hornung & Mermod, 1928) **'' Afriscrobs turtoni'' (Bartsch, 1915) *Genus '' Amphithalamus'' Carpenter Carpentry is a skilled trade and a craft in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, ships, timber bridges, concrete formwork, etc. Carpenter ..., 1864 * Genus '' Anabathron'' G.R. von Frauenfeld, 1867 ** sometimes there are recognized subgenera ''Anabathron'' G.R. von Frauenfeld, 1867 and ''Scrobs'' Watson, 1886 **'' Anabathron angulatum'' ( Powell, 1927) **'' Anabathron ascensum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquitaine
Aquitaine (, ; ; ; ; Poitevin-Saintongeais: ''Aguiéne''), archaic Guyenne or Guienne (), is a historical region of southwestern France and a former Regions of France, administrative region. Since 1 January 2016 it has been part of the administrative region of Nouvelle-Aquitaine. It is situated in the southwest corner of metropolitan France, along the Atlantic Ocean and the Pyrenees mountain range on the border with Spain; for most of its Recorded history, written history Bordeaux has been a vital port and administrative centre. It is composed of the five Departments of France, departments of Dordogne, Lot-et-Garonne, Pyrénées-Atlantiques, Landes (department), Landes and Gironde. Gallia Aquitania was established by the Romans in ancient times and in the Middle Ages, Duchy of Aquitaine, Aquitaine was a kingdom and a duchy, whose boundaries fluctuated considerably. History Ancient history There are traces of human settlement by prehistoric peoples, especially in the Périgord, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphithalamus
''Amphitalhamus'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Anabathridae. Species Species within the genus ''Amphithalamus'' include: * '' Amphithalamus albus'' Rolán, 1991 * '' Amphithalamus erosus'' (Odhner, 1924) * '' Amphithalamus falsestea'' (Ponder, 1968) * ''Amphithalamus fulcira ''Amphithalamus fulcira'' is a species of minute sea snails, marine gastropod mollusks or micromollusks in the family Anabathridae. Description The length of the shell attains 1.56 mm, its diameter 0.91 mm. Distribution This species is endemi ...'' (Laseron, 1956) * '' Amphithalamus glabrus'' Simone, 1996 * † '' Amphithalamus immigrus'' Lozouet, 1998 * '' Amphithalamus incidatus'' (Frauenfeld, 1867) * '' Amphithalamus inclusus'' Carpenter, 1864 * '' Amphithalamus jacksoni'' (Brazier, 1895) * '' Amphithalamus latisulcus'' (Ponder, 1968) * '' Amphithalamus liratus'' Thiele, 1930 * '' Amphithalamus maoria'' (Ponder, 1968) * '' Amphithalamus n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
