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Trahira
The Erythrinidae are a family of fishes found in rivers and other freshwater habitats from Costa Rica south as far as Argentina. They are common and are caught with hooks by fishermen, partially because of their voracious behaviour. They are sometimes called ''trahiras'' (also spelled trairas) or ''tarariras''. The Erythrinidae include cylindrical fish with blunt heads, and prey on other fish. They can reach lengths up to . Some species can breathe air, enabling them to survive in water low in oxygen, and even to move over land between ponds. The earliest definitive remains of the family are of '' Hoplias'' from the Middle Miocene of Colombia. Potential fossil remains are known from the Early Paleocene-aged Tenejapa-Lacandón Formation of Mexico. The three genera in this family appear to have diverged from one another over the Paleogene. However, most species within the family are relatively young, their evolution influenced by major tectonic changes in South America over the N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoplias Malabaricus
''Hoplias malabaricus'', also known as the wolf fish, tiger fish, guabine or trahira, is a predatory Central and South American freshwater ray-finned fish of the characiform family Erythrinidae. Description The maximum known length for this species is about and the maximum known weight is about . Like other members of the genus '' Hoplias'' this species has a cylindrical body shape with a large mouth equipped with prominent teeth. The dog-like teeth have given it some of its common names. Coloration is highly variable but is usually grey-brown with darker vertical stripes or a single horizontal stripe. Distribution Southern Central America to Argentina. Found in most river systems and in the following countries; Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Trinidad and Tobago, Uruguay and Venezuela. Biology They occur in a wide range of freshwater habitats from clear, fast flowing, upland streams, to slow, tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erythrinidae
The Erythrinidae are a family of fishes found in rivers and other freshwater habitats from Costa Rica south as far as Argentina. They are common and are caught with hooks by fishermen, partially because of their voracious behaviour. They are sometimes called ''trahiras'' (also spelled trairas) or ''tarariras''. The Erythrinidae include cylindrical fish with blunt heads, and prey on other fish. They can reach lengths up to . Some species can breathe air, enabling them to survive in water low in oxygen, and even to move over land between ponds. The earliest definitive remains of the family are of '' Hoplias'' from the Middle Miocene of Colombia. Potential fossil remains are known from the Early Paleocene-aged Tenejapa-Lacandón Formation of Mexico. The three genera in this family appear to have diverged from one another over the Paleogene. However, most species within the family are relatively young, their evolution influenced by major tectonic changes in South America over the N ... [...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] |
Tenejapa-Lacandón Formation
The Tenejapa-Lacandón Formation is a geological formation and lagerstätte in southern Mexico and western Guatemala. It preserves fossils dating to the Early Paleocene. It is located primarily in the Mexican state of Chiapas, but outcrops lie as far west as Petén Department, Petén, Guatemala. Some consider it as two distinct formations, the Tenejapa Formation to the west and the Lacandón Formation to the east, which are contiguous and contemporary with each other. The Lacandón Formation was deposited in a shallow inshore marine habitat, whereas the Tenejapa Formation was deposited in a deep offshore habitat. They appear to preserve a marine ecosystem deposited on the western margin of the Caribbean Sea. The most prominent exposures are at the División del Norte and Belisario Domínguez quarries near Palenque, Chiapas, which contain articulated fish skeletons belonging to a variety of taxa of both Cenozoic and Mesozoic affinities. This formation was also the source of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of South America
A fish (: fish or fishes) is an aquatic animal, aquatic, Anamniotes, anamniotic, gill-bearing vertebrate animal with swimming fish fin, fins and craniate, a hard skull, but lacking limb (anatomy), limbs with digit (anatomy), digits. Fish can be grouped into the more basal (phylogenetics), basal jawless fish and the more common jawed fish, the latter including all extant taxon, living cartilaginous fish, cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single Class (biology), class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are ectotherm, cold-blooded, their body temperature varying with the surrounding water, though some large nekton, active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communication in aquatic animals#Acoustic, communicate acoustically with each other, such as during courtship displays. The stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishes Of The World
''Fishes of the World'' is a standard reference for the systematics of fishes. It was first written in 1976 by the American ichthyologist Joseph S. Nelson (1937–2011). Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science. The book begins with a general overview of ichthyology, although it is not self-contained. After a short section on Chordata and non-fish taxa, the work lists all known fish families in a systematic fashion. Each family is given at least one paragraph, and usually a body outline drawing; large families have subfamilies and tribes described as well. Notable genera and species are mentioned, though the book does generally not deal with the species-level diversity. The complexities of the higher taxa are described succinctly, with many references for difficult points. The book does not contain any color illustrations. The fourth edition was the first to inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Gill
Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist, and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural history. He was associated with J. Carson Brevoort in the arrangement of the latter's entomological and ichthyological collections before going to Washington, DC, in 1863 to work at the Smithsonian Institution. He catalogued mammals, fishes, and mollusks most particularly, although he maintained proficiency in other orders of animals. He was librarian at the Smithsonian and also senior assistant to the Library of Congress. He was elected as a member of the American Philosophical Society in 1867. Gill was professor of zoology at George Washington University. He was also a member of the Megatherium Club at the Smithsonian Institution in Washington, DC. Fellow members frequently mocked him for his vanity. He was president of the American Asso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giovanni Antonio Scopoli
Giovanni Antonio Scopoli (sometimes Latinisation of names, Latinized as Johannes Antonius Scopolius) (3 June 1723 – 8 May 1788) was an Italians, Italian physician and natural history, naturalist. His biographer Otto Guglia named him the "first anational European" and the "Carl Linnaeus, Linnaeus of the Habsburg monarchy, Austrian Empire". Biography Scopoli was born at Cavalese in the Val di Fiemme, belonging to the Prince-Bishopric of Trent, Bishopric of Trent (today's Trentino), son of Francesco Antonio, military commissioner, and Claudia Caterina Gramola (1699-1791), a painter from a patrician family from Trentino. He obtained a degree in medicine at University of Innsbruck, and practised as a doctor in Cavalese and Venice.Newton, Alfred 1881. ''Scopoli's ornithological papers.'' The Willoughby SocietyScanned version/ref> Much of his time was spent in the Alps, Plant collecting, collecting plants and Entomology, insects, of which he made outstanding collections. He spent two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotropical Ichthyology
''Neotropical Ichthyology'' is a peer-reviewed scientific journal focusing on all aspects of Neotropical ichthyology Ichthyology is the branch of zoology devoted to the study of fish, including bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 35,800 species of fish had been described as of March 2 .... It is published by the Sociedade Brasileira de Ictiologia (Brazilian Society of Ichthyology) and is its official publication. The journal was established in 2003 and is edited by Carla S. Pavanelli. Indexing and abstracting ''Neotropical Ichthyology'' is indexed and abstracted in: External links''Neotropical Ichthyology'' website {{in lang, pt Ichthyology jou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. 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 of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extant Taxon
Neontology is a part of biology that, in contrast to paleontology, studies and deals with living (or, more generally, '' recent'') organisms. It is the study of extant taxa (singular: extant taxon): taxa (such as species, genera and families) with members still alive, as opposed to (all) being extinct. For example: * The Indian elephant (''Elephas maximus'') is an extant species, and the woolly mammoth (''Mammuthus primigenius'') is an extinct species. * The moose (''Alces alces'') is an extant species, and the Irish elk (''Megaloceros giganteus'') is an extinct species. * In the group of molluscs known as the cephalopods, there were approximately 600 extant species and 7,500 extinct species. A taxon can be classified as extinct if it is broadly agreed or certified that no members of the group are still alive. Conversely, an extinct taxon can be reclassified as extant if there are new discoveries of living species (" Lazarus species"), or if previously known extant species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neogene
The Neogene ( ,) is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period million years ago. It is the second period of the Cenozoic and the eleventh period of the Phanerozoic. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868). The earlier term Tertiary Period was used to define the span of time now covered by Paleogene and Neogene and, despite no longer being recognized as a formal stratigraphic term, "Tertiary" still sometimes remains in informal use. During this period, mammals and birds continued to evolve into modern forms, while other groups of life remained relatively unchanged. The first human ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
