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Ranid
True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North America, northern South America, Europe, Africa (including Madagascar), and Asia. The Asian range extends across the East Indies to New Guinea and a single species (the Australian wood frog (''Hylarana daemelii'')) has spread into the far north of Australia. Typically, true frogs are smooth and moist-skinned, with large, powerful legs and extensively webbed feet. The true frogs vary greatly in size, ranging from small—such as the wood frog (''Lithobates sylvatica'')—to large. Many of the true frogs are aquatic or live close to water. Most species lay their eggs in the water and go through a tadpole stage. However, as in most families of frogs, there is large variation of habitat within the family. There are also arboreal species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Frog
''Lithobates sylvaticus'' or ''Rana sylvatica'', commonly known as the wood frog, is a frog species that has a broad distribution over North America, extending from the boreal forest of the north to the southern Appalachians, with several notable disjunct populations including lowland eastern North Carolina. The wood frog has garnered attention from biologists because of its freeze tolerance, relatively great degree of terrestrialism (for a ranid), interesting habitat associations (peat bogs, vernal pools, uplands), and relatively long-range movements. The ecology and conservation of the wood frog has attracted research attention in recent years because they are often considered "obligate" breeders in ephemeral wetlands (sometimes called "vernal pools"), which are themselves more imperiled than the species that breed in them. The wood frog has been proposed to be the official state amphibian of New York. Description Wood frogs range from in length. Females are larger than ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Wood Frog
''Papurana daemeli'' is a species of "true frog", family Ranidae. It is found in New Guinea, northern Australia, and some smaller islands (Yapen, New Hanover Island, New Britain). It is the only Ranidae, ranid frog found in Australia. In Australia, the species is restricted to the rainforest of northern Queensland and the eastern border of Arnhem Land, in the Northern Territory. In Australia, it is usually known as wood frog (though in North America this would refer to ''Lithobates sylvaticus'') or sometimes as water frog. Other vernacular names are Australian wood frog, Australian bullfrog, and Arnhem rana. Description Males can grow to and females to in snout–vent length; typical size for Australia are in males and in females. The body is elongated and the limbs are long and muscular. The tympanum (zoology), tympanum is distinct and relatively larger in males than in females. A dorso-lateral skin fold runs from behind the eye to the hindlimb. Skin is smooth or weakly gran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insular India
The term Insular India refers to the isolated landmass which became the Indian subcontinent. Across the latter stages of the Cretaceous and most of the Paleocene, following the breakup of Gondwana, the Indian subcontinent remained an isolated landmass as the Indian Plate drifted across the Tethys Ocean, forming the Indian Ocean. The process of India's separation from Madagascar first began 88 million years ago, but complete isolation only occurred towards the end of the Maastrichtian, a process that has been suggested to be the creation of the Deccan Traps. Soon after, the land mass moved northward rather quickly, until contact with Asia was established 55 million years ago. Even then, both landmasses did not become fully united until around 35 million years ago, and periods of isolation occurred as recently as 24 million years ago. Thus, for a period of 53 million years India has retained a degree of isolation, 11 of which it has been a complete island c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frog
A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock, molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 Myr, million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from Taxonomy (biology), taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprus Water Frog
''Pelophylax cypriensis'', the Cyprus frog or Cyprus water frog, is a species of frog in the family Ranidae. It is endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ... to Cyprus. It is widespread in Cyprus, with the highest density in the Troodos area, the most humid part of the island. It can live in both stagnant and brackish water, including small pools, streams, and ditches. Description It is a medium-sized frog, with females (body length up to 75mm) being larger than males (up to 65mm). The skin is rather warty and colouration varies widely. There are four unwebbed toes on the front legs and five webbed toes on the hindlegs. Males have paired external vocal sacs. Gallery Cyprus water frog (Pelophylax cypriensis) juvenile.jpg Cyprus water frog (Pelophylax cypriensi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrixalus
''Micrixalus'' (commonly known as dancing frogs, tropical frogs, and torrent frogs) is a genus of frogs from that are endemic to the Western Ghats in India. They are Monotypic taxon, monotypic within the family Micrixalidae. Before being raised to the family level they were classified as the subfamily Micrixalinae within Ranidae. ''Micrixalus'' frogs, such as ''Micrixalus saxicola'', are popularly known as "dancing frogs" due to their peculiar habit of waving their feet to attract females during the breeding season. Dancing frogs are extremely vulnerable as their habitat is severely threatened. Description The family is characterized by having a pectoral girdle that is firmisternal and tadpoles having a single row of labial teeth. Biju ''et al.'' (2014) list the following characteristic features as common to all species of ''Micrixalus'': Natural history Dancing frogs are found in the vicinity of fast and slow moving perennial streams in the forests of the Western Ghats. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranixalidae
Ranixalidae is a family of frogs commonly known as the leaping frogs or Indian frogs. They are endemic to central and southern India. Genera There are two genera with a total 18 species: *''Indirana ''Indirana'' is a genus of frogs in the family Ranixalidae. These frogs are endemic to the Western Ghats of India. They are sometimes known under the common name Indian frogs, whereas members of their parent family are named "leaping frogs ...'' Laurent, 1986 — 14 species *'' Walkerana'' Dahanukar, Modak, Krutha, Nameer, Padhye, and Molur, 2016 — 4 species The respective species counts in the AmphibiaWeb are 15 (because '' Indirana tenuilingua'', a '' nomen inquirendum'', is listed) and three ('' Walkerana muduga'' Dinesh ''et al''., 2020 not (yet) listed). References {{Taxonbar, from=Q14612656 Endemic fauna of India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope Carbon-13, 13C in the atmosphere was exceptionally low in comparison with the more common isotope Carbon-12, 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Popigai impact structure, Siberia and in what is now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gondwana
Gondwana () was a large landmass, often referred to as a supercontinent, that formed during the late Neoproterozoic (about 550 million years ago) and began to break up during the Jurassic period (about 180 million years ago). The final stages of break-up, involving the separation of Antarctica from South America (forming the Drake Passage) and Australia, occurred during the Paleogene. Gondwana was not considered a supercontinent by the earliest definition, since the landmasses of Baltica, Laurentia, and Siberia were separated from it. To differentiate it from the Indian region of the same name (see ), it is also commonly called Gondwanaland. Gondwana was formed by the accretion of several cratons. Eventually, Gondwana became the largest piece of continental crust of the Palaeozoic Era, covering an area of about , about one-fifth of the Earth's surface. During the Carboniferous Period, it merged with Laurasia to form a larger supercontinent called Pangaea. Gondwana (and Pan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now- extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dicroglossidae
The frog family Dicroglossidae occurs in tropical and subtropical regions of Asia and Africa, with most genera and species being found in Asia. The common name of the family is fork-tongued frogs. The Dicroglossidae were previously considered to be a subfamily in the family Ranidae, but their position as a family is now well established. Subfamilies and genera The two subfamilies contain 213 species in 13–15 genera, depending on the source. Dicroglossinae Anderson, 1871 — 197 species in 12 genera: Occidozyginae Fei, Ye, and Huang, 1990 — 16 species in two genera: *''Ingerana'' Dubois, 1987 (four species) *''Occidozyga'' Kuhl and Van Hasselt, 1822 (12 species) Phylogeny The following phylogeny of Dicroglossidae is from Pyron & Wiens (2011). Dicroglossidae is a sister group of Ranixalidae Ranixalidae is a family of frogs commonly known as the leaping frogs or Indian frogs. They are endemic Endemism is the state of a species being found in a single defined geog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Subcontinent
The Indian subcontinent is a list of the physiographic regions of the world, physiographical region in United Nations geoscheme for Asia#Southern Asia, Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian Ocean from the Himalayas. Geopolitically, it includes the countries of Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka."Indian subcontinent". ''Oxford Dictionary of English, New Oxford Dictionary of English'' () New York: Oxford University Press, 2001; p. 929: "the part of Asia south of the Himalayas which forms a peninsula extending into the Indian Ocean, between the Arabian Sea and the Bay of Bengal. Historically forming the whole territory of Greater India, the region is now divided into three countries named Bangladesh, India and Pakistan." The terms ''Indian subcontinent'' and ''South Asia'' are often used interchangeably to denote the region, although the geopolitical term of South Asia frequently includes Afghanist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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