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Bathylagus Niger
''Bathylagus'' is a genus of deep-sea smelts, some species of which are noted for having stylophthalmine larvae. Species The seven recognized, extant species in this genus are: * '' Bathylagus andriashevi'' Kobyliansky, 1986 * '' Bathylagus antarcticus'' Günther, 1878 (Antarctic deepsea smelt) * '' Bathylagus euryops'' Goode & T. H. Bean, 1896 (goiter blacksmelt) * '' Bathylagus gracilis'' Lönnberg, 1905 * '' Bathylagus niger'' Kobyliansky, 2006 * ''Bathylagus pacificus'' C. H. Gilbert, 1890 (slender blacksmelt) * ''Bathylagus tenuis'' Kobyliansky, 1986 The oldest fossil species in this genus known from skeletal remains are from the Miocene. These include '' Bathylagus angelensis'', whose remains are widespread across Southern California (Monterey Formation and Modelo Formation), as well as '' B. sencta'', '' B. obesa'', and '' B. toyohamaensis'' from Japan. These specimens are all known from formations that were formerly deposited in deep-sea environments, before being d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Günther
Albert Karl Ludwig Gotthilf Günther , also Albert Charles Lewis Gotthilf Günther (3October 18301February 1914), was a German-born British zoologist, ichthyologist, and herpetologist. Günther is ranked the second-most productive reptile taxonomist (after George Albert Boulenger) with more than 340 reptile species described. Early life and career Günther was born in Esslingen in Swabia ( Württemberg). His father was a ''Stiftungs-Commissar'' in Esslingen and his mother was Eleonora Nagel. He initially schooled at the Stuttgart Gymnasium. His family wished him to train for the ministry of the Lutheran Church for which he moved to the University of Tübingen. A brother shifted from theology to medicine, and he, too, turned to science and medicine at Tübingen in 1852. His first work was "''Ueber den Puppenzustand eines Distoma''" (On the pupal state of ''Distoma''). He graduated in medicine with an M.D. from Tübingen in 1858, the same year in which he published a handbook ... [...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] |
Bathylagus
''Bathylagus'' is a genus of deep-sea smelts, some species of which are noted for having stylophthalmine larvae. Species The seven recognized, extant species in this genus are: * '' Bathylagus andriashevi'' Kobyliansky, 1986 * '' Bathylagus antarcticus'' Günther, 1878 (Antarctic deepsea smelt) * '' Bathylagus euryops'' Goode & T. H. Bean, 1896 (goiter blacksmelt) * '' Bathylagus gracilis'' Lönnberg, 1905 * '' Bathylagus niger'' Kobyliansky, 2006 * ''Bathylagus pacificus'' C. H. Gilbert, 1890 (slender blacksmelt) * '' Bathylagus tenuis'' Kobyliansky, 1986 The oldest fossil species in this genus known from skeletal remains are from the Miocene. These include '' Bathylagus angelensis'', whose remains are widespread across Southern California (Monterey Formation and Modelo Formation), as well as '' B. sencta'', '' B. obesa'', and '' B. toyohamaensis'' from Japan. These specimens are all known from formations that were formerly deposited in deep-sea environments, before being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maastrichtian
The Maastrichtian ( ) is, in the International Commission on Stratigraphy (ICS) geologic timescale, the latest age (geology), age (uppermost stage (stratigraphy), stage) of the Late Cretaceous epoch (geology), Epoch or Upper Cretaceous series (stratigraphy), Series, the Cretaceous geologic period, Period or system (stratigraphy), System, and of the Mesozoic geologic era, Era or Erathem. It spanned the interval from . The Maastrichtian was preceded by the Campanian and succeeded by the Danian (part of the Paleogene and Paleocene). It is named after the city of Maastricht, the capital and largest city of the Limburg (Netherlands), Limburg province in the Netherlands. The Cretaceous–Paleogene extinction event (formerly known as the Cretaceous–Tertiary period, Tertiary extinction event) occurred at the end of this age. In this extinction event, mass extinction, many commonly recognized groups such as non-avian dinosaurs, plesiosaurs and mosasaurs, as well as many other lesser-kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period. Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident. The tropics became restricted to equatorial regions and northern latitudes experienced markedly more seasonal climatic conditions. Geography Due to plate tectonics, the Americas were gradually moving westward, causing the Atlantic Ocean to expand. The Western Interior Seaway divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere, Aus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otolith
An otolith (, ' ear + , ', a stone), also called otoconium, statolith, or statoconium, is a calcium carbonate structure in the saccule or utricle (ear), utricle of the inner ear, specifically in the vestibular system of vertebrates. The saccule and utricle, in turn, together make the ''otolith organs''. These organs are what allows an organism, including humans, to perceive linear acceleration, both horizontally and vertically (gravity). They have been identified in both extinct and extant vertebrates. Counting the annual growth rings on the otoliths is a common technique in estimating the age of fish. Description Endolymphatic infillings such as otoliths are structures in the saccule and Utricle (ear), utricle of the inner ear, specifically in the Labyrinth (inner ear), vestibular labyrinth of all vertebrates (fish, amphibians, reptiles, mammals and birds). In vertebrates, the saccule and utricle together make the ''otolith organs''. Both statoconia and otoliths are used as gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectonic Uplift
Tectonic uplift is the orogeny, geologic uplift of Earth#Surface, Earth's surface that is attributed to plate tectonics. While Isostasy, isostatic response is important, an increase in the mean elevation of a region can only occur in response to tectonic processes of Thrust tectonics, crustal thickening (such as Mountain formation, mountain building events), changes in the density distribution of the crust and underlying Mantle (geology), mantle, and flexural support due to the bending of rigid lithosphere. Tectonic uplift results in denudation (processes that wear away the earth's surface) by raising buried rocks closer to the surface. This process can redistribute large loads from an elevated region to a topographically lower area as well – thus promoting an isostatic response in the region of denudation (which can cause local bedrock uplift). The timing, magnitude, and rate of denudation can be estimated by geologists using pressure-temperature studies. Crustal thickening C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathylagus Toyohamaensis
''Bathylagus'' is a genus of deep-sea smelts, some species of which are noted for having stylophthalmine larvae. Species The seven recognized, extant species in this genus are: * '' Bathylagus andriashevi'' Kobyliansky, 1986 * '' Bathylagus antarcticus'' Günther, 1878 (Antarctic deepsea smelt) * '' Bathylagus euryops'' Goode & T. H. Bean, 1896 (goiter blacksmelt) * '' Bathylagus gracilis'' Lönnberg, 1905 * ''Bathylagus niger'' Kobyliansky, 2006 * ''Bathylagus pacificus'' C. H. Gilbert, 1890 (slender blacksmelt) * ''Bathylagus tenuis'' Kobyliansky, 1986 The oldest fossil species in this genus known from skeletal remains are from the Miocene. These include ''Bathylagus angelensis'', whose remains are widespread across Southern California (Monterey Formation and Modelo Formation), as well as '' B. sencta'', '' B. obesa'', and '' B. toyohamaensis'' from Japan. These specimens are all known from formations that were formerly deposited in deep-sea environments, before being dra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modelo Formation
The Modelo Formation is a Miocene Formation (geology), geologic formation in the Simi Hills and western Santa Susana Mountains of southern California, including under parts of Los Angeles. It preserves fossils dating back to the Late Miocene of the Neogene Period (geology), period, among them a high number of fossil representatives of modern Pelagic fish, pelagic and deep-sea fish taxa (as well as some with Demersal fish, benthic affinities), in addition to some Seabird, seabirds and Cetacea, cetaceans. As suggested from this fauna, the sediments of the formation were likely deposited in a deepwater marine habitat at middle to upper Bathypelagic zone, bathyal depths within an abyssal fan, with geological changes along the San Andreas Fault, San Andreas fault causing a rapid Tectonic uplift, uplift during the latest Miocene, bringing these former deepwater sediments to the surface. It is likely partially contemporaneous with the Monterey Formation in some areas, such as the Ventura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monterey Formation
The Monterey Formation is an extensive Miocene oil-rich geology, geological sedimentary formation in California, with outcrops of the formation in parts of the California Coast Ranges, Peninsular Ranges, and on some of California's off-shore islands. The Type locality (geology), type locality is near the city of Monterey, California. The Monterey Formation is the major source-rock for 37 to 38 billion barrels of oil in conventional traps such as sandstones. This is most of California's known oil resources. The Monterey has been extensively investigated and mapped for Hydrocarbon exploration, petroleum potential, and is of major importance for understanding the complex geological history of California. Its rocks are mostly highly siliceous strata that vary greatly in composition, stratigraphy, and Tectonostratigraphy, tectono-stratigraphic history. The US Energy Information Administration (EIA) estimated in 2014 that the 1,750 square mile Monterey Formation could, as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
