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Hemidactyliinae
Plethodontidae, or lungless salamanders, are a family of salamanders. Most species are native to the Western Hemisphere, from British Columbia to Brazil, although a few species are found in Sardinia, Europe south of the Alps, and South Korea. In terms of number of species, they are by far the largest group of salamanders. Biology Adult lungless salamanders have four limbs, with four toes on the fore limbs, and usually with five on the hind limbs. Within many species, mating and reproduction occur solely on land. Accordingly, many species also lack an aquatic larval stage, a phenomenon known as direct development in which the offspring hatch as fully-formed, miniature adults. Direct development is correlated with changes in the developmental characteristics of plethodontids compared to other families of salamanders including increases in egg size and duration of embryonic development. Additionally, the evolutionary loss of the aquatic larval stage is related to a diminishing dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isthmura
''Isthmura'' is a genus of salamanders in the family Plethodontidae. They are endemic to Mexico. The genus, which corresponds to the former "''Pseudoeurycea bellii'' species group" and was first described as a subgenus of ''Pseudoeurycea'', was raised to full generic level in 2015 in order to preserve '' Ixalotriton'' and ''Bolitoglossa'' while avoiding paraphyly of ''Pseudoeurycea''. Description ''Isthmura'' are large to very large salamanders, and the largest plethodontid salamanders in the Neotropics The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In bi .... They have robust, black bodies that usually have bold red, orange, or pink markings. The toes have slight webbing. The fifth toe is well-developed. They inhabit montane forests mostly above , although '' Isthmura gigantea'' and '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemidactyliinae
Plethodontidae, or lungless salamanders, are a family of salamanders. Most species are native to the Western Hemisphere, from British Columbia to Brazil, although a few species are found in Sardinia, Europe south of the Alps, and South Korea. In terms of number of species, they are by far the largest group of salamanders. Biology Adult lungless salamanders have four limbs, with four toes on the fore limbs, and usually with five on the hind limbs. Within many species, mating and reproduction occur solely on land. Accordingly, many species also lack an aquatic larval stage, a phenomenon known as direct development in which the offspring hatch as fully-formed, miniature adults. Direct development is correlated with changes in the developmental characteristics of plethodontids compared to other families of salamanders including increases in egg size and duration of embryonic development. Additionally, the evolutionary loss of the aquatic larval stage is related to a diminishing dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bradytriton
''Bradytriton'' is a monotypic genus of salamanders in the family Plethodontidae. it is represented by the species ''Bradytriton silus'', commonly known as the Finca Chiblac salamander, and has been considered the sister taxon of the genus ''Oedipina''. It is found in north-western Guatemala and in Chiapas, south-eastern Mexico. Description Adult males measure and adult females in snout–vent length. The body is stocky. The head is relatively broad and essentially continuous with the body. The tail is short and laterally compressed, appearing stout when viewed from the side. The limbs are short and slender with diminutive digits that are, apart from their tips, fused together. Dorsal coloration is reddish brown. The head is mostly black and there are black flecks on the anterior part of the body. The cheeks, sides of the tail, and lower flanks are black with dense white flecks. Habitat and conservation In north-western Guatemala, ''Bradytriton silus'' is known from both distu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquiloeurycea
''Aquiloeurycea'' is a genus of salamanders in the family Plethodontidae. They are endemic to Mexico. The genus corresponds to the former "''Pseudoeurycea cephalica'' species group", which was established in order to preserve '' Ixalotriton'' and ''Bolitoglossa'' while avoiding paraphyly of ''Pseudoeurycea ''Pseudoeurycea'' is a genus of salamander in the family Plethodontidae. The members of this genus are commonly known as the false brook salamanders. They are found in Mexico and Guatemala. In order to preserve ''Ixalotriton'' and '' Bolitoglos ...''. Species It contains the following species: Gallery File:Aquiloeurycea cephalica, Chunky False Brook Salamander, Tamaulipas.jpg, Chunky false brook salamander (''Aquiloeurycea cephalica''), El Cielo Biosphere Reserve, Municipality of Gómez Farías, Tamaulipas, Mexico (12 August 2004). File:Galeana false brook salamander (Aquiloeurycea galeanae). Miquihuana, Tamaulipas, Mexico, 5 October 2008. W. L. Farr.jpg, Galeana false ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyrinophilus
''Gyrinophilus'', the spring salamanders, are a genus of salamanders in the family Plethodontidae. The genus is endemic to the Appalachian Mountains of the eastern United States and Canada. Their habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ... is under rocks in cold, clear springs, in wet caves, and in streams in forested areas. Species This genus consists of four species: References Amphibians of North America Extant Pleistocene first appearances Amphibian genera Taxa named by Edward Drinker Cope Taxonomy articles created by Polbot {{Plethodontidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendrotriton
''Dendrotriton'' or bromeliad salamanders is a genus of salamanders in the family Plethodontidae, endemic to South and Central America: from Southwestern Chiapas, Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guate ..., to Honduras. These are lungless species possessing a slender body, long tail and prominent eyes. They inhabit high-elevation forests with high humidity. Species This genus includes the following eight species: Notes External linksDendrotritonat Mexico HerpetologyDendrotritonat Discover Life Amphibians of Central America Amphibians of North America Amphibian genera Taxa named by David B. Wake Taxonomy articles created by Polbot {{Plethodontidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chiropterotriton
''Chiropterotriton'', also known as splayfoot salamanders or flat-footed salamanders, is a genus of salamanders in the family Plethodontidae. The genus is endemic to Mexico. ''Chiropterotriton'' are widely distributed in northern and eastern Mexico. They are an ecologically diverse group, occupying a range of habitats, including cloud forests, pine-oak forests, oak forests, and caves. They may be found in various microhabitats, such as arboreal bromeliad The Bromeliaceae (the bromeliads) are a family of monocot flowering plants of about 80 genera and 3700 known species, native mainly to the tropical Americas, with several species found in the American subtropics and one in tropical west Africa ...s, rock crevices, caves, and terrestrial cover objects. Most species are superficially similar in their appearance, making species delimitation by purely morphological means difficult. However, molecular methods have aided description of new species. Species As of early 2019, this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolitoglossa
''Bolitoglossa'' is a genus of lungless salamanders, also called mushroom-tongued salamanders, tropical climbing salamanders, or web-footed salamanders, in the family Plethodontidae. Their range is between northern Mexico through Central America to Colombia, Venezuela, Ecuador, Peru, northeastern Brazil, and central Bolivia. Neotropical salamanders of the ''Bolitoglossa'' make up the largest genus in the order Caudata, consisting of approximately one-fifth of all known species of salamanders. Adult salamanders range anywhere from 45mm to 200mm in length depending on their specific species. They are notorious for their ability to project their tongue at prey items, as indicated from their name. They are also known for their webbed feet, having significantly more webbing than any other species outside their genus with the exception of the cave-dwelling Mexican bolitoglossine ''Chiropterotriton magnipes''. Although webbed feet are a common characteristic of these salamanders, onl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous–Paleogene Boundary
The Cretaceous–Paleogene (K–Pg) boundary, formerly known as the Cretaceous–Tertiary (K–T) boundary, is a geological signature, usually a thin band of rock containing much more iridium than other bands. The K–Pg boundary marks the end of the Cretaceous Period, the last period of the Mesozoic Era, and marks the beginning of the Paleogene Period, the first period of the Cenozoic Era. Its age is usually estimated at around 66 million years, with radiometric dating yielding a more precise age of 66.043 ± 0.011 Ma. The K–Pg boundary is associated with the Cretaceous–Paleogene extinction event, a mass extinction which destroyed a majority of the world's Mesozoic species, including all dinosaurs except for birds. Strong evidence exists that the extinction coincided with a large meteorite impact at the Chicxulub crater and the generally accepted scientific theory is that this impact triggered the extinction event. The word "Cretaceous" is derived from the Latin "creta" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemidactylium
The four-toed salamander (''Hemidactylium scutatum'') is a lungless salamander native to eastern North America. It is the only species of the monotypic genus ''Hemidactylium''. Description The four-toed salamander can be recognized by its white underbelly sprinkled with black dots. Its back varies from orange-brownish to red-brownish; its flanks are grayish. The body and the limbs are elongated. The snout is short, and the eyes are prominent. The tail color is usually brighter than the back, and you can observe a constriction at the body/tail junction. The posterior limbs have four toes (hence its name), a good identification criterion but hard to use in the field. This species rarely exceeds in length. The sexes are alike except for the shape of the head. Males have elongated and almost square snouts, whereas the females' snouts are short and round. The juveniles show a tail shorter than the body.Desroches, J.-F. & D. Rodrigues. (2004). ''Amphibiens et Reptiles du Québec et d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
