instance_of trematosuchus
Trematosauria is one of ___MASK16___ major groups of temnospondyl amphibians that survived the Permian - Triassic ___MASK32___ event , the other ( according to Yates and Warren 2000 ) being the Capitosauria . The trematosaurs were a diverse and important group that included many medium - sized to large forms that were semi - aquatic to totally aquatic . The group included long - snouted forms such as the trematosauroids and short , broad - headed forms such as the metoposaurs . Although most groups did not survive beyond the Triassic , one lineage , the brachyopoids , continued until the Cretaceous period . ___MASK56___ is a natural ___MASK43___ concerned with the study of life and living organisms , including their ___MASK100___ , function , growth , evolution , distribution , identification and taxonomy . Modern biology is a vast and eclectic ___MASK81___ , composed of many branches and subdisciplines . However , despite the broad scope of biology , there are certain general and unifying concepts within it that govern all study and research , consolidating it into ___MASK15___ , coherent ___MASK81___ . In general , biology recognizes the cell as the basic unit of life , genes as the basic unit of heredity , and evolution as the engine that propels the synthesis and creation of new species . It is also understood today that all the organisms survive by consuming and transforming energy and by regulating their internal environment to maintain a stable and vital condition known as homeostasis . Trematosauridae are a ___MASK12___ of large temnospondyl amphibians with many members . They first appeared during the Olenekian ___MASK73___ of the Early Triassic , and existed until around the Carnian ___MASK73___ of the Late Triassic , although by then they were very rare . By the Middle Triassic they had become widespread throughout Laurasia and Gondwana with fossils being found in Europe , Asia , Madagascar , and Australia . In the geologic timescale , the Middle Triassic is the second of ___MASK71___ epochs of the Triassic ___MASK45___ or the middle of ___MASK71___ series in which the Triassic ___MASK80___ is divided . It spans the ___MASK29___ between Ma and Ma ( million years ago ). The Middle Triassic is divided into the Anisian and Ladinian ages or stages . Laurasia ( or ) was the more northern of ___MASK16___ supercontinents ( the other being Gondwana ) that formed ___MASK96___ of the Pangaea ___MASK77___ around ( Mya ). It separated from Gondwana ( beginning in the late Triassic ___MASK45___ ) during the breakup of Pangaea , drifting farther north after the split . In ___MASK56___ , an ___MASK2___ is any contiguous living system , such as an animal , plant , fungus , archaeon , or bacterium . All known types of organisms are capable of some degree of response to stimuli , reproduction , growth and development and homeostasis . An ___MASK2___ consists of one or more cells ; when it has one cell it is known as a unicellular ___MASK2___ ; and when it has more than one it is known as a multicellular ___MASK2___ . Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms . Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs . In ___MASK56___ , a ___MASK25___ ( abbreviated sp ., with the plural form ___MASK25___ abbreviated spp .) is the basic unit of ___MASK28___ and a taxonomic rank . A ___MASK25___ is often defined as the largest group of organisms in which two individuals can produce fertile ___MASK53___ , typically by sexual reproduction . While this definition is often adequate , looked at more closely it is often problematic . For example , in a ___MASK25___ complex , the boundaries between closely related ___MASK25___ become unclear or disappear altogether . Other ways of defining ___MASK25___ include similarity of DNA , morphology , or ecological niche . The presence of locally adaptive traits may further subdivide ___MASK25___ into infraspecific taxa such as subspecies . In paleogeography , Gondwana , also Gondwanaland , is the ___MASK52___ given to an ancient ___MASK77___ . It is believed to have sutured between about 573 and 510 million years ago ( Mya ), joining East Gondwana to West Gondwana . Gondwana formed prior to Pangaea , and later became part of it . Capitosauria is an extinct ___MASK95___ of large temnospondyl amphibians with simplified stereospondyl vertebrae . Mainly living as piscivores in lakes and rivers , the Capitosauria and its sister ___MASK8___ Trematosauria were the only major labyrinthodonts that existed during the Mesozoic in ecological niches broadly similar to those of modern crocodiles , and some grew to very large sizes . At 6 meter in length , the Mid - Triassic " Mastodonsaurus giganteus " is not only thought to have been the largest capitosaur , but possibly also the largest amphibian to have lived . The capitosaurs enjoyed a brief period of success in the early Triassic , but with the rise of crocodiles in the middle Triassic they went into decline , and the capitosaur lineage is not known beyond the Late Triassic . A ___MASK67___ ( genera ) is a taxonomic rank used in the ___MASK28___ of living and fossil organisms in biology . In the ___MASK20___ of ___MASK28___ , ___MASK67___ comes above species and below family . In binomial nomenclature , the ___MASK67___ name forms the first part of the binomial species name for each species within the ___MASK67___ . Trematosuchus is an extinct ___MASK67___ of trematosaurian temnospondyl within the family Trematosauridae from South African . It was first named by Haughton in 1915 as Trematosaurus sobeyi . It was assigned to its own ___MASK67___ Trematosuchus by Watson in 1919 . Binomial ___MASK40___ ( also called binominal ___MASK40___ or binary ___MASK40___ ) is a formal ___MASK80___ of naming species of living things by giving each a name composed of two parts , both of which use Latin grammatical forms , although they can be based on words from other languages . Such a name is called a binomial name ( which may be shortened to just " binomial "), a binomen or a scientific name ; more informally it is also called a Latin name . The first part of the name identifies the genus to which the species belongs ; the second part identifies the species within the genus . For example , humans belong to the genus " Homo " and within this genus to the species " Homo sapiens ". The " formal " introduction of this ___MASK80___ of naming species is credited to Carl Linnaeus , effectively beginning with his work " Species Plantarum " in 1753 . But Gaspard Bauhin , in as early as 1623 , had introduced in his book " Pinax theatri botanici " ( English , " Illustrated exposition of plants ") many names of genera that were later adopted by Linnaeus . The Early Triassic is the first of ___MASK71___ epochs of the Triassic ___MASK45___ of the geologic timescale . It spans the ___MASK29___ between Ma and Ma ( million years ago ). Rocks from this epoch are collectively known as the Lower Triassic , which is a unit in chronostratigraphy . The Early Triassic is the oldest epoch of the Mesozoic Era and is divided into the Induan and Olenekian ages . In ___MASK56___ , a ___MASK8___ ( plural taxa ; back - formation from " taxonomy ") is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit . Although neither is required , a ___MASK8___ is usually known by a particular name and given a particular ranking , especially if and when it is accepted or becomes established . It is not uncommon , however , for taxonomists to remain at odds over what belongs to a ___MASK8___ and the criteria used for inclusion . If a ___MASK8___ is given a formal scientific name , its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping . The Late Triassic is the third and ___MASK84___ of three epochs of the Triassic Period in the geologic timescale . The Triassic - Jurassic ___MASK32___ event began during this epoch and is one of the five major mass ___MASK32___ events of the Earth . The corresponding series is known as the Upper Triassic . In Europe the epoch was called the Keuper , after a German lithostratigraphic group ( a sequence of rock strata ) that has a roughly corresponding ___MASK99___ . The Late Triassic spans the time between Ma and Ma ( million years ago ). The Late Triassic is divided into the Carnian , Norian and Rhaetian ages . ___MASK33___ is a standard protocol for allowing serial ___MASK78___ for telecommunications programs under the ___MASK34___ ___MASK22___ . ___MASK33___ is an acronym for " Fido Opus SEAdog Standard Interface Layer ". " Fido " refers to FidoBBS , " Opus " refers to Opus - CBCS BBS , and " SEAdog " refers to a Fidonet compatible mailer . The standards document that defines the ___MASK33___ protocol is maintained by the Fidonet Technical Standards Committee .