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Lavinia Exilicauda
''Lavinia exilicauda'', the hitch, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, Eurasian minnows and related fishes. This species is endemic to central California, and was once very common. The common name may derive from a Pomoan word for this species. It is the only species in the monospecific genus ''Lavinia''. Taxonomy ''Lavinia exilicauda'' was first formally described in 1854 by Spencer Fullerton Baird and Charles Frédéric Girard with its type locality given as the Sacramento River in California. While the hitch is closely related to the California roach (''Hesperoleucus symmetricus''), and the two species can hybridize, leading some authorities to place ''H. symmetricus'' in ''Lavinia'', genomic data appear to support the fishes' separate lineages. This taxon is classified in the subfamily Laviniinae, the "Western chubs", of the family Leuciscidae. Three distinct population segments (DPS) or subspecies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Miocene
The Middle Miocene is a sub-epoch of the Miocene epoch (geology), epoch made up of two Stage (stratigraphy), stages: the Langhian and Serravallian stages. The Middle Miocene is preceded by the Early Miocene. The sub-epoch lasted from 15.97 ± 0.05 Ma (million years ago) to 11.608 ± 0.005 Ma. During this period, a sharp drop in global temperatures took place. This event is known as the Middle Miocene disruption, Middle Miocene Climatic Transition. For the purpose of establishing European land mammal ages, this sub-epoch is equivalent to the Astaracian age. References External links GeoWhen Database - Middle Miocene Miocene, .02 Miocene geochronology, 02 Langhian, * Serravallian, * {{geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Locality (biology)
In biology, a type is a particular wikt:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set (mathematics), set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Miocene
The Late Miocene (also known as Upper Miocene) is a sub-epoch of the Miocene epoch (geology), Epoch made up of two faunal stage, stages. The Tortonian and Messinian stages comprise the Late Miocene sub-epoch, which lasted from 11.63 Ma (million years ago) to 5.333 Ma. The evolution of ''Homo'' The gibbons (family Hylobatidae) and orangutans (genus ''Pongo'') were the first groups to split from the line leading to the hominins, including humans, then gorillas (genus ''Gorilla''), and finally chimpanzees and bonobos (genus ''Pan (genus), Pan''). The splitting date between hominin and chimpanzee lineages is placed by some between 4 and 8 million years ago, that is, during the Late Miocene. References External links GeoWhen Database - Late Miocene Miocene, .03 Miocene geochronology, 03 Messinian, * Tortonian, * {{geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lavinia Stuwilliamsi
In Roman mythology, Lavinia ( ; ) is the daughter of Latinus and Amata, and the last wife of Aeneas. Creation It has been proposed that the character was in part intended to represent Servilia Isaurica, Emperor Augustus's first fiancée. Story Lavinia, the only child of the king and "ripe for marriage", had been courted by many men who hoped to become the king of Latium. Turnus, ruler of the Rutuli, was the most likely of the suitors, having the favor of Queen Amata. In Virgil's account, King Latinus is warned by his father Faunus in a dream oracle that his daughter is not to marry a Latin: Lavinia has what is perhaps her most, or only, memorable moment in Book 7 of the ''Aeneid'', lines 94–104: during a sacrifice at the altars of the gods, Lavinia's hair catches fire, an omen promising glorious days to come for Lavinia and war for all Latins: Not long after the dream oracle and the prophetic moment, Aeneas sends emissaries bearing several gifts for King Latinus. King La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aldrich Station Formation
The Aldrich Station Formation is a geologic formation in Nevada. It preserves fossils dating back to the Neogene period. See also * List of fossiliferous stratigraphic units in Nevada * Paleontology in Nevada Paleontology in Nevada refers to paleontological research occurring within or conducted by people from the United States, U.S. state of Nevada. Nevada has a rich fossil Fossil record, record of plants and animal life spanning the past 650 million ... References Neogene geology of Nevada Geologic formations of Nevada {{Neogene-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lavinia Lugaskii
In Roman mythology, Lavinia ( ; ) is the daughter of Latinus and Amata, and the last wife of Aeneas. Creation It has been proposed that the character was in part intended to represent Servilia Isaurica, Emperor Augustus's first fiancée. Story Lavinia, the only child of the king and "ripe for marriage", had been courted by many men who hoped to become the king of Latium. Turnus, ruler of the Rutuli, was the most likely of the suitors, having the favor of Queen Amata. In Virgil's account, King Latinus is warned by his father Faunus in a dream oracle that his daughter is not to marry a Latini, Latin: Lavinia has what is perhaps her most, or only, memorable moment in Book 7 of the ''Aeneid'', lines 94–104: during a sacrifice at the altars of the gods, Lavinia's hair catches fire, an omen promising glorious days to come for Lavinia and war for all Latins: Not long after the dream oracle and the prophetic moment, Aeneas sends emissaries bearing several gifts for King Latinus. K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interior West
The Mountain states (also known as the Mountain West or the Interior West) form one of the nine geographic divisions of the United States that are officially recognized by the United States Census Bureau. It is a subregion of the Western United States. The Mountain states are considered to include: Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah and Wyoming. The words "Mountain states" generally refer to the U.S. States which encompass the U.S. Rocky Mountains. These are oriented north-south through portions of the states of Montana, Idaho, Wyoming, Colorado, Utah, and New Mexico. Arizona and Nevada, as well as other parts of Utah and New Mexico, have other smaller mountain ranges and scattered mountains located in them as well. Sometimes, the Trans-Pecos area of West Texas is considered part of the region. The land area of the eight states together is some . It is the fastest-growing region in the United States, with Utah, Idaho, Nevada, Colorado, and Arizona r ... [...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''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of '' Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before prin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear Lake Hitch
The Clear Lake hitch (''Lavinia exilicauda chi'') is a freshwater fish and a subspecies of the Hitch (fish), hitch (''Lavinia exilicauda''). It is a Cyprinidae, cyprinid fish that is endemic to Clear Lake, California. They are large minnows that can grow to lengths that exceed Fish measurement, standard length. The fish has a life cycle of four to six years. During the winter and spring, when the rains fill up dry rivers, they migrate up the lake's tributaries to spawn. In 2014, it was listed as Threatened species, threatened by the state of California. Local Pomo Tribes call Clear Lake hitch "chi" and harvested the fish during its spawning runs. Taxonomy The Clear Lake hitch is in the Cyprinidae, Cyprinidae family, which consists of minnows and carp. The genus Lavinia is closely related to another minnow with the genus Hesperoleucus, also known as California roach, California Roach. Due to the close relatedness of the hitch and California roach, there has been debate on if the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distinct Population Segment
{{no footnotes, date=February 2018 A distinct population segment (DPS) is the smallest division of a taxonomic species permitted to be protected under the U.S. Endangered Species Act. ''Species'', as defined in the Act for listing purposes, is a taxonomic species or subspecies of plant or animal, or in the case of vertebrate species, a distinct population segment. Criteria for designation The criteria for designation of a population or group of populations as a DPS was most recently articulated in a 1996 joint USFWS-NMFS The National Marine Fisheries Service (NMFS), informally known as NOAA Fisheries, is a United States federal agency within the U.S. Department of Commerce's National Oceanic and Atmospheric Administration (NOAA) that is responsible for the ste ... policy (61 FR 4722: February 7, 1996): Three elements are considered in a decision regarding the status of a possible DPS as endangered or threatened under the Act. These are applied similarly for addition to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laviniinae
Laviniinae is a subfamily of freshwater ray-finned fishes belonging to the family Leuciscidae, the family which includes the daces, chubs, Eurasian minnows and related fishes. Members of this subfamily are known as western chubs or the western clade (WC) of minnows. As the name suggests, most members of this clade are found in western North America aside from '' Chrosomus'', which is found in eastern North America. One of the largest North American cypriniforms and the largest member of Leuciscidae, the Colorado pikeminnow (''Ptychocheilus lucius''), belongs to this subfamily. Fossil remains of a large minnow presumably related to '' Ptychocheilus'' have been recovered from the Late Eocene or Early Oligocene-aged deposits of the Cypress Hills Formation in Saskatchewan Saskatchewan is a Provinces and territories of Canada, province in Western Canada. It is bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, to the northe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zoological subfamily names with "-inae". Detarioideae is an example of a botanical subfamily. Detarioideae is a subdivision of the family Fabaceae (legumes), containing 84 genera. Stevardiinae is an example of a zoological subfamily. Stevardiinae is a large subdivision of the family Characidae, a diverse clade In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ... of freshwater fish. See also * International Code of Nomenclature for algae, fungi, and plants * International Code of Zoological Nomenclature * Rank (botany) * Rank (zoolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
