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Hauturua Laevella
''Hauturua'' is an extinct genus of sea snails, marine gastropod mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=578104 on 2016-10-10 Distribution These extinct species were found in Miocene strata of New Zealand, age range: 12.7 to 11.608 Ma. Species Species within the genus ''Hauturua'' include: * † ''Hauturua bijuga'' (Marwick, 1931) * † ''Hauturua exiguescens ''Hauturua'' is an extinct genus of sea snails, marine gastropod mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespec ...'' (Marwick, 1931) * † '' Hauturua laevella'' (Marwick, 1931) * † '' Hauturua vellai'' (Beu, 1970) References * Marwick, John. ''The Tertiary Mollusca of the Gisborne District''. Department of S ... [...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] |
Sea Snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible 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 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'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large group of animals and a very diverse one. 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 when they can move around in the air. These air-breathing species includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda 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 Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 estimated between 60,000 and 100,000 additional species. 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. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. 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 invertebrate species. The gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') 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". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drilliidae
The Drilliidae are a Taxonomy (biology), taxonomic family (biology), family of small predatory sea snails with high-spired shells. They are classified as marine (ocean), marine gastropod mollusks in the superfamily Conoidea. This family has no subfamilies. It consists of about 30 genera and approximately 500 Recent species. Description The shell is claviform with a tall spire, or squatly conical to biconical. In many species, the siphonal canal is truncated. The aperture (mollusc), aperture is U-shaped with a parietal callus pad. The sculpture of the shell shows prominent axial ribs with a polished surface. Most species have a dorsal varix (mollusc), varix (transverse elevation), except in the genera ''Cymatosyrinx'', ''Elaeocyma'' and ''Splendrillia''. The protoconch can be smooth or very carinate. The ovate operculum (gastropod), operculum has a terminal nucleus. The radula of the species in this family have characteristically five teeth in each row (formula : 1 + 1 + 1 + 1 + ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first 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 is preceded by the Oligocene and is followed by 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 a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hauturua Bijuga
''Hauturua'' is an extinct genus of sea snails, marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ... mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=578104 on 2016-10-10 Distribution These extinct species were found in Miocene strata of New Zealand, age range: 12.7 to 11.608 Ma. Species Species within the genus ''Hauturua'' include: * † '' Hauturua bijuga'' (Marwick, 1931) * † '' Hauturua exiguescens'' (Marwick, 1931) * † '' Hauturua laevella'' (Marwick, 1931) * † '' Hauturua vellai'' (Beu, 1970) References * Marwick, John. ''The Tertiary Mollusca of the Gisborne District''. Department of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hauturua Exiguescens
''Hauturua'' is an extinct genus of sea snails, marine gastropod mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=578104 on 2016-10-10 Distribution These extinct species were found in Miocene strata of New Zealand, age range: 12.7 to 11.608 Ma. Species Species within the genus ''Hauturua'' include: * † ''Hauturua bijuga ''Hauturua'' is an extinct genus of sea snails, marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprise ...'' (Marwick, 1931) * † '' Hauturua exiguescens'' (Marwick, 1931) * † '' Hauturua laevella'' (Marwick, 1931) * † '' Hauturua vellai'' (Beu, 1970) References * Marwick, John. ''The Tertiary Mollusca of the Gisborne District''. Department of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hauturua Laevella
''Hauturua'' is an extinct genus of sea snails, marine gastropod mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=578104 on 2016-10-10 Distribution These extinct species were found in Miocene strata of New Zealand, age range: 12.7 to 11.608 Ma. Species Species within the genus ''Hauturua'' include: * † ''Hauturua bijuga'' (Marwick, 1931) * † ''Hauturua exiguescens ''Hauturua'' is an extinct genus of sea snails, marine gastropod mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespec ...'' (Marwick, 1931) * † '' Hauturua laevella'' (Marwick, 1931) * † '' Hauturua vellai'' (Beu, 1970) References * Marwick, John. ''The Tertiary Mollusca of the Gisborne District''. Department of S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hauturua Vellai
''Hauturua'' is an extinct genus of sea snails, marine gastropod mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=578104 on 2016-10-10 Distribution These extinct species were found in Miocene strata of New Zealand, age range: 12.7 to 11.608 Ma. Species Species within the genus ''Hauturua'' include: * † ''Hauturua bijuga'' (Marwick, 1931) * † ''Hauturua exiguescens'' (Marwick, 1931) * † ''Hauturua laevella ''Hauturua'' is an extinct genus of sea snails, marine gastropod mollusks in the family Drilliidae.Bouchet, P. (2015). Hauturua Powell, 1942. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespec ...'' (Marwick, 1931) * † '' Hauturua vellai'' (Beu, 1970) References * Marwick, John. ''The Tertiary Mollusca of the Gisborne District''. Department of Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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