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Miotragocerus
''Miotragocerus'' is an extinct genus of bovine bovid native to Eurasia during the latter part of the Miocene epoch, from around 13 to 6 million years ago, spanning from Europe to China. Taxonomy The placement of ''Miotragocerus'' is disputed. Some studies have considered it a member of the living antelope tribe Boselaphini, with others have placed it in the extinct tribe Tragoportacini. A 2021 phylogenetic analysis considered it to be a basal member of the tribe Bovini, and the closest known relative to the possibly extinct saola (''Pseudoryx''). Description ''M. gluten'' possessed teeth that were brachydont The molars or molar teeth are large, flat teeth at the back of the mouth. They are more developed in mammals. They are used primarily to grind food during chewing. The name ''molar'' derives from Latin, ''molaris dens'', meaning "millstone tooth ... to sub-hypsodont in their morphology. Ecology Dental microwear of ''Miotragocerus gaudryi'' from the Late Miocene o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tragoportacini
Tragoportacini is a tribe of extinct bovines that first appeared during the Late Miocene and persisted into the Early Pliocene. Classification Tragoportacini is a tribe of Bovinae, closely related to Boselaphini, a tribe consisting of the extant nilgai (''Boselaphus tragocamelus'') and four-horned antelope (''Tetracerus quadricornis''). Originally, tragoportacines were classified within Boselaphinae, though in 2009 they were split off into a tribe of their own.Bibi, Faysal, Bukhsianidze, Maia, Gentry, Alan W., Geraads, Denis, Kostopoulos, Dimitris S., and Vrba, Elisabeth S., 2009. The Fossil Record and Evolution of Bovidae: State of the Field. Palaeontologia Electronica Vol. 12, Issue 3; 10A: 11p; http://palaeo-electronica.org/2009_3/169/index.html The tribe consists of six genera: '' Austroportax'', ''Kipsigicerus'', '' Miotragocerus'', ''Protragocerus'', '' Strepsiportax'' and ''Tragoportax ''Tragoportax'' is an extinct genus of Bovidae, bovid ungulate. It lived from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saola
The saola (''Pseudoryx nghetinhensis''), also called spindlehorn, Asian unicorn, or infrequently, Vu Quang bovid, is a forest-dwelling bovid native to the Annamite Range in Vietnam and Laos. It was described in 1993 following a discovery of remains in Vũ Quang National Park by a joint survey of the Vietnamese Ministry of Forestry and the World Wide Fund for Nature. Saolas have since been kept in captivity multiple times, although only for short periods as they died within a matter of weeks to months. The first photograph of a living saola was taken in captivity in 1993. The most recent one was taken in 2013 by a movement-triggered camera in the forest of central Vietnam, which represents the most recent record of the saola. There is concern that the species may already be extinct. It is the only species in the genus ''Pseudoryx'' and the earliest diverging member of the tribe Bovini, placing buffalo and cattle as its closest relatives. History of research and taxonomy ... [...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] |
Ernst Stromer
Ernst Freiherr Stromer von Reichenbach (born on 12th of June, 1871 in Nürnberg, died on 18th of December, 1952 in Erlangen) was a German paleontologist best remembered for his expedition to Egypt, during which the discovery of the first known remains of ''Spinosaurus'' was made. Stromer described several discoveries made in Egypt, including a few dinosaurs from the Cretaceous period discovered in Egypt ('' Aegyptosaurus,'' ''Bahariasaurus'', and '' Carcharodontosaurus''), an enigmatic theropod (''Spinosaurus aegyptiacus'') and a giant crocodilian ('' Stomatosuchus''). In 1929 fossil bird genus ''Stromeria'' (now included in the genus ''Eremopezus'') were named in Stromer’s honour by Kálmán Lambrecht. Smith et al. (2001) also named the sauropod '' Paralititan stromeri'' in his honour. Many of the fossils discovered by Stromer were destroyed during World War II, leaving today’s scientists only a few photographs of the previously existing specimens to rely on. Biog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...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] |
Bovinae
Bovines (subfamily Bovinae) comprise a diverse group of 10 genera of medium to large-sized ungulates, including cattle, bison, African buffalo, water buffalos, and the four-horned and spiral-horned antelopes. The members of this group are classified into loose tribes rather than formal subgroups, as the evolutionary relationships within the groups are still uncertain. General characteristics include cloven hooves and usually at least one of the sexes of a species having true horns. The largest extant bovine is the gaur. In many countries, bovid milk and meat is used as food by humans. Cattle are kept as livestock almost everywhere except in parts of India and Nepal, where they are considered sacred by most Hindus. Bovids are used as draft animals and as riding animals. Small breeds of domestic bovid, such as the Miniature Zebu, are kept as pets. Bovid leather is durable and flexible and is used to produce a wide range of goods including clothing and bags. Systematics and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bovid
The Bovidae comprise the family (biology), biological family of cloven-hoofed, ruminant mammals that includes Bos, cattle, bison, Bubalina, buffalo, antelopes (including Caprinae, goat-antelopes), Ovis, sheep and Capra (genus), goats. A member of this family is called a bovid. With 143 Extant taxon, extant species and 300 known Extinction, extinct species, the family Bovidae consists of 11 (or two) major subfamilies and thirteen major tribes. The family evolved 20 million years ago, in the early Miocene. The bovids show great variation in size and Fur, pelage colouration. Except some Polled livestock, domesticated forms, all male bovids have two or more horn (anatomy), horns, and in many species, females possess horns, too. The size and shape of the horns vary greatly, but the basic structure is always one or more pairs of simple bony protrusions without branches, often having a spiral, twisted or fluted form, each covered in a permanent sheath of keratin. Most bovids bear 30 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boselaphini
Boselaphini is a tribe (biology), tribe of Bovinae, bovines. It contains only two extant taxon, extant genus, genera, each with a single extant species. Description The Boselaphini or four-horned antelope tribe are the last survivors of a form very similar to that of the ancestors of the broader subfamily. The oldest fossil members of the tribe, such as ''Eotragus'', date to the Miocene about 18 to 20 million years ago. Such fossils possessed horns very similar to those of males belonging to the two living species, although in some cases, they were also present in females. Both extant species have relatively primitive anatomical and behavioural characteristics and the females have no horns. They are native to the rapidly diminishing forests of India, and tend to avoid open plains. The nilgai has been introduced into southern Texas where a population of a little under 15,000 animals provides some long-term insurance for its survival. Genera Extant species Phylogeny The followin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bovini
The tribe Bovini or wild cattle are medium to massive bovines that are native to Eurasia, North America, and Africa. These include the enigmatic, antelope-like saola, the African and Asiatic buffaloes, and a clade that consists of bison and the wild cattle of the genus '' Bos''. Not only are they the largest members of the subfamily Bovinae, they are the largest species of their family Bovidae. The largest species is the gaur (''Bos gaurus''), weighing up to . Bovins and humans have had a long and complex relationship. Five of seven species have been successfully domesticated, with one species (cattle) being the most successful member of their lineage. Domesticated shortly after the last ice age, Op. cit. in there are at least 1.4 billion cattle in the world. Domestic bovines have been selectively bred for beef, dairy products and leather, and serve as working animals. However, many species of wild cattle are threatened by extinction due to habitat loss to make room for cattl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachydont
The molars or molar teeth are large, flat teeth at the back of the mouth. They are more developed in mammals. They are used primarily to grind food during chewing. The name ''molar'' derives from Latin, ''molaris dens'', meaning "millstone tooth", from ''mola'', millstone and ''dens'', tooth. Molars show a great deal of diversity in size and shape across the mammal groups. The third molar of humans is sometimes vestigial. Human anatomy In humans, the molar teeth have either four or five cusps. Adult humans have 12 molars, in four groups of three at the back of the mouth. The third, rearmost molar in each group is called a wisdom tooth. It is the last tooth to appear, breaking through the front of the gum at about the age of 20, although this varies among individuals and populations, and in many cases the tooth is missing. The human mouth contains upper (maxillary) and lower (mandibular) molars. They are: maxillary first molar, maxillary second molar, maxillary third molar, man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
