|
Eogyrinus
''Pholiderpeton'' (from el, φολῐ́δος , 'horny scale' and el, ἑρπετόν , 'creeping thing') is an extinct genus of embolomere amphibian which lived in the Late Carboniferous period (Bashkirian) of England. The genus was first named by Thomas Henry Huxley in 1869 to include the species ''P. scutigerum'', based on the disarticulated front half of a skeleton discovered near Bradford, Yorkshire. Associated fossil wood suggests that this specimen died inside a '' Lepidodendron'' tree trunk. In 1987, Jennifer A. Clack suggested that a different embolomere, ''Eogyrinus attheyi'' from Newsham, Northumberland, belonged to the same genus as ''Pholiderpeton''. She subsumed the genus ''Eogyrinus'' into ''Pholiderpeton'' and created the new combination ''P. attheyi''. The anatomy of ''"Eogyrinus"'' ''attheyi'' has been described in detail by A.L. Panchen. Some phylogenetic analyses, such as those by Marcello Ruta & Michael Coates (2007) and David Marjanović & Michel Laur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embolomeres
Embolomeri is an order of tetrapods or stem-tetrapods, possibly members of Reptiliomorpha. Embolomeres first evolved in the Early Carboniferous ( Mississippian) Period and were the largest and most successful predatory tetrapods of the Late Carboniferous (Pennsylvanian) Period. They were specialized semiaquatic predators with long bodies for eel-like undulatory swimming. Embolomeres are characterized by their vertebral centra, which are formed by two cylindrical segments, the pleurocentrum at the rear and intercentrum at the front. These segments are equal in size. Most other tetrapods have pleurocentra and intercentra which are drastically different in size and shape. Embolomeres were among the earliest large carnivorous tetrapods, with members such as the crocodilian-like ''Proterogyrinus'' appearing in the Visean stage of the Carboniferous. They declined in diversity during the Permian period, though at least one representative ('' Archeria)'' was common in the Early Permian. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embolomeri
Embolomeri is an order of tetrapods or stem-tetrapods, possibly members of Reptiliomorpha. Embolomeres first evolved in the Early Carboniferous (Mississippian) Period and were the largest and most successful predatory tetrapods of the Late Carboniferous (Pennsylvanian) Period. They were specialized semiaquatic predators with long bodies for eel-like undulatory swimming. Embolomeres are characterized by their vertebral centra, which are formed by two cylindrical segments, the pleurocentrum at the rear and intercentrum at the front. These segments are equal in size. Most other tetrapods have pleurocentra and intercentra which are drastically different in size and shape. Embolomeres were among the earliest large carnivorous tetrapods, with members such as the crocodilian-like '' Proterogyrinus'' appearing in the Visean stage of the Carboniferous. They declined in diversity during the Permian period, though at least one representative ('' Archeria)'' was common in the Early Permia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eogyrinidae
Eogyrinidae is an extinct family of large, long-bodied tetrapods that lived in the rivers of the Late Carboniferous period. Gallery image:Eogyrinus BW.jpg, '' Eogyrinus''. image:Pteroplax DB.jpg, '' Pteroplax''. image:Diplovertebron BW.jpg, ''Diplovertebron ''Diplovertebron'' (from el, διπλοῦς , 'double' and la, vertebron, 'vertebra') is an extinct genus of embolomere that lived in the Late Carboniferous period (Moscovian), about 310 million years ago. ''Diplovertebron'' was a medium-siz ...'' Embolomeres Carboniferous vertebrates Pennsylvanian first appearances Pennsylvanian extinctions Prehistoric tetrapod families {{paleo-amphibian-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago (Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' (" coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian lin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northumberland
Northumberland () is a ceremonial counties of England, county in Northern England, one of two counties in England which border with Scotland. Notable landmarks in the county include Alnwick Castle, Bamburgh Castle, Hadrian's Wall and Hexham Abbey. It is bordered by land on three sides; by the Scottish Borders, Scottish Borders region to the north, County Durham and Tyne and Wear to the south, and Cumbria to the west. The fourth side is the North Sea, with a stretch of coastline to the east. A predominantly rural area, rural county with a landscape of moorland and farmland, a large area is part of Northumberland National Park. The area has been the site of a number of historic Anglo-Scottish wars, battles with Scotland. Name The name of Northumberland is recorded as ''norð hẏmbra land'' in the Anglo-Saxon Chronicle, meaning "the land north of the Humber". The name of the kingdom of ''Northumbria'' derives from the Old English meaning "the people or province north of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basal Tetrapods Of Europe
Basal or basilar is a term meaning ''base'', ''bottom'', or ''minimum''. Science * Basal (anatomy), an anatomical term of location for features associated with the base of an organism or structure * Basal (medicine), a minimal level that is necessary for health or life, such as a minimum insulin dose * Basal (phylogenetics), a sister group relationship in a phylogenetic tree Places * Basal, Hungary, a village in Hungary * Basal, Pakistan, a village in the Attock District Other * Basal plate (other) * Basal sliding, the act of a glacier sliding over the bed before it due to meltwater increasing the water pressure underneath the glacier causing it to be lifted from its bed * Basal conglomerate, see conglomerate (geology) See also * Basel (other) Basel is a city in Switzerland. Basel may also refer to: * Basel (canton), a historical Swiss canton, now divided into two half-cantons: ** Basel-Landschaft **Basel-Stadt *FC Basel, football (soccer) club based in B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrapods
Tetrapods (; ) are four-limb (anatomy), limbed vertebrate animals constituting the superclass Tetrapoda (). It includes extant taxon, extant and extinct amphibians, sauropsids (reptiles, including dinosaurs and therefore birds) and synapsids (pelycosaurs, extinct therapsids and all extant mammals). Tetrapods evolved from a clade of primitive semiaquatic animals known as the Tetrapodomorpha which, in turn, evolved from ancient lobe-finned fish (sarcopterygians) around 390 million years ago in the Middle Devonian, Middle Devonian period; their forms were transitional between lobe-finned fishes and true four-limbed tetrapods. Limbed vertebrates (tetrapods in the broad sense of the word) are first known from Middle Devonian trackways, and body fossils became common near the end of the Late Devonian but these were all aquatic. The first crown group, crown-tetrapods (last common ancestors of extant tetrapods capable of terrestrial locomotion) appeared by the very early Mississippian ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcello Ruta
Marcello Ruta is an Italian paleontologist. Ruta's research primarily has focused on the anatomy and evolutionary significance of Paleozoic tetrapods. Selected publications *Ruta, M., Coates, M. I. and Quicke, D. L. J. 2003. Early tetrapod relationships revisited. ''Biological Reviews'' 78: 251-345. *Ruta, M., Jeffery, J. E. and Coates, M. I. 2003. A supertree of early tetrapods. ''Proceedings of the Royal Society of London Series B-Biological Sciences'' 270: 2507-2516. *Ruta, M. and Coates, M. I. 2007. Dates, nodes and character conflict: Addressing the lissamphibian origin problem. ''Journal of Systematic Palaeontology'' 5: 67-122. *Ruta, M., Pisani, D., Lloyd, G. T. and Benton, M. J. 2007. A supertree of Temnospondyli: cladogenetic patterns in the most species-rich group of early tetrapods. ''Proceedings of the Royal Society B-Biological Sciences'' 274: 3087-3095. References {{DEFAULTSORT:Ruta, Marcello Italian paleontologists Academics of the University of Bristo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetic Analyses
In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An unrooted tree diagram (a network) makes no assumption about the ancestral line, and does ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bashkirian
The Bashkirian is in the ICS geologic timescale the lowest stage or oldest age of the Pennsylvanian. The Bashkirian age lasted from to Ma, is preceded by the Serpukhovian and is followed by the Moscovian. The Bashkirian overlaps with the upper part of the Namurian and lower part of the Westphalian stages from regional European stratigraphy. It also overlaps with the North American Morrowan and Atokan stages and the Chinese Luosuan and lower Huashibanian stages. Name and definition The Bashkirian was named after Bashkiria, the then Russian name of the republic of Bashkortostan in the southern Ural Mountains of Russia, home of the Bashkir people. The stage was introduced by Russian stratigrapher Sofia Semikhatova in 1934. The base of the Bashkirian is at the first appearance of conodont species ''Declinognathodus noduliferus''. The top of the stage (the base of the Moscovian) is at the first appearance of the conodonts ''Declinognathodus donetzianus'' or ''Idiognathoides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jennifer A
Jennifer or Jenifer may refer to: People *Jennifer (given name) * Jenifer (singer), French pop singer * Jennifer Warnes, American singer who formerly used the stage name Jennifer * Daniel of St. Thomas Jenifer * Daniel Jenifer Film and television * ''Jennifer'' (1953 film), a film starring Ida Lupino * ''Jennifer'' (1978 film), a horror film by Brice Mack * ''Jennifer'', a 1998 Ghanaian film starring Brew Riverson Jnr * "Jenifer" (''Masters of Horror''), an episode of ''Masters of Horror'' Music * The Jennifers, a British band, some of whose members later formed Supergrass * ''Jenifer'' (album), an album by French singer Jenifer * ''Jennifer'' (album), a 1972 album by Jennifer Warnes * "Jennifer", a 1974 song by Faust from ''Faust IV'' * "Jennifer", a 1983 song by Eurythmics from ''Sweet Dreams (Are Made of This)'' (album) * "Jennifer", a 2001 song by M2M from ''The Big Room'' Other uses * Hurricane Jennifer * Project Jennifer, a CIA attempt to recover a Soviet s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of a kind of organism or of a group of kinds ( taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Tetrapods")
.jpg "Click for more on -> Extinct")