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European Spadefoot Toad
The European spadefoot toads are a family of frogs, the Pelobatidae, with only one extant genus ''Pelobates'', containing six species. They are native to Europe, the Mediterranean, northwestern Africa, and western Asia. Description The European spadefoot toad grows up to in length and is often inconspicuously coloured. They have squat bodies with smooth skin and eyes with vertical pupils. They are predominantly fossorial (burrowing) frogs, which dig into sandy soils. Pelobatidae frogs burrow backwards and they spend much of their time in the ground. They prefer open areas with loose soil as opposed to dense compact soil to facilitate the burrowing and have hardened protrusions on their feet to aid in digging, which is the source of the common name. They emerge from the ground during periods of rain and breed in pools, which are usually temporary. All of the species from this family have free-living, aquatic tadpoles. The eggs are laid in temporary ponds that may quickly evapo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eopelobates Wagneri
''Eopelobates'' is an extinct genus of frogs in the family Pelobatidae. Closely related to the living European spadefoot toad, it is known from the Eocene of western North America, and the Eocene–Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58Paleocene-Eocene Thermal Maximum. References *Spinar, Z.V. & Rocek, Z. 1984[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extant Late Jurassic First Appearances
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Extant is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English * Extant taxon, a taxon which is not extinct, such as an extant species * Extant Theatre Company, a disability arts organisation * ''Extant'' (TV series), an American television series * Hank Hall, also known as Extant, a DC Comics supervillain See also * Extent (other) Extent may refer to: Computing * Extent (file systems), a contiguous region of computer storage medium reserved for a file * Extent File System, a discontinued file system implementation named after the contiguous region * Extent, a chunk of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelobatidae
The European spadefoot toads are a family of frogs, the Pelobatidae, with only one extant genus ''Pelobates'', containing six species. They are native to Europe, the Mediterranean, northwestern Africa, and western Asia. Description The European spadefoot toad grows up to in length and is often inconspicuously coloured. They have squat bodies with smooth skin and eyes with vertical pupils. They are predominantly fossorial (burrowing) frogs, which dig into sandy soils. Pelobatidae frogs burrow backwards and they spend much of their time in the ground. They prefer open areas with loose soil as opposed to dense compact soil to facilitate the burrowing and have hardened protrusions on their feet to aid in digging, which is the source of the common name. They emerge from the ground during periods of rain and breed in pools, which are usually temporary. All of the species from this family have free-living, aquatic tadpoles. The eggs are laid in temporary ponds that may quickly evapo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoglossid
The Alytidae are a family of primitive frogs. Their common name is painted frogs or midwife toads. Most are endemic to Europe, but three species occur in northwest Africa, and a species formerly thought to be extinct is found in Israel. This family is also known as Discoglossidae, but the older name Alytidae has priority and is now recognized by major reference works. Some researchers, though, suggest that '' Alytes'' and ''Discoglossus'' are different enough to be treated as belonging to separate families, implying resurrection of the Discoglossidae. The term "discoglossid" has also been used to refer to many primitive fossil frogs that share plesiomorphic (ancestral) similities to alytids, but that are probably not closely related. Genera and species The family contains three extant genera, '' Alytes'', ''Discoglossus'', and '' Latonia''. The first is somewhat toad-like and can often be found on land. The second is smoother and more frog-like, preferring the water. The third ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Varaldi's Spadefoot Toad
''Pelobates varaldii'', the Moroccan spadefoot toad, Moroccan spadefoot, or Varaldi's spadefoot toad, is a species of frog in the family Pelobatidae. As currently known, it is endemic to the coastal north-western Morocco, although there is an unconfirmed record from the Spanish territory of Melilla that could possibly represent this species. The specific name ''varaldii'' honours Marcel Varaldi who collected amphibians and reptiles in Morocco. Description Males grow to and females to in snout–vent length. The overall appearance is stocky. The snout is sharp. The tympanum is present but inconspicuous. No parotoid glands are present. The dorsum is finely glandular and smooth; colouration is grey-brown with irregular darker markings. There can be red speckles above the eyes. The ventral side of the body is white. The hind feet have enlarged metatarsal tubercles (used in digging) and webbed toes. The male advertisement call is aloud, harsh clucking. The tadpoles can reach i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelobates Syriacus
''Pelobates syriacus'', the eastern spadefoot or Syrian spadefoot, is a species of toad in the family Pelobatidae, native to an area extending from Eastern Europe to Western Asia. Description The eastern spadefoot is a plump toad with a large head with a flat topped skull, large, protruding eyes and vertical slit-like pupils. It can grow to a length of about . The skin is smooth with a scattering of small warts. The male has a large gland at the back of his fore legs which becomes enlarged in the breeding season. The front foot has four toes and the back foot has five with deeply indented webbing between them. The hind legs are short and at the back of each hind foot is a yellowish bony protuberance, the inner metatarsal tubercle or spade, that gives the animal its name. The colour of the frog is quite variable, the back often being pale grey with large, greenish, irregularly shaped blotches and the belly being pale grey. The eastern spadefoot can be distinguished from the western ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Spadefoot
''Pelobates fuscus'' is a species of toad in the family Pelobatidae, native to an area extending from Central Europe to Western Asia. It is commonly known as the common spadefoot, garlic toad, the common spadefoot toad and the European common spadefoot. The common spadefoot grows to a length of approximately for males and for females. The skin colouration varies depending upon habitat, gender and region, but is usually light-grey to beige-brown on the dorsal surface. The skin is mottled by darker marks that differ between individuals. The belly is white, sometimes with grey mottling. Albino specimens have been observed. Two subspecies are traditionally recognised: ''Pelobates fuscus fuscus'' (from central Europe) and ''Pelobates fuscus insubricus'' (from Northern Italy). In reality there is no physical or behavioural character allowing to distinguish these supposed subspecies. A recent study showed that there is no haplotype segregation for the populations of Northern Italy, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelobates Cultripes
''Pelobates cultripes'' is a toad species in the family Pelobatidae. It is known under many different common names, including the western spadefoot, Iberian spadefoot toad, Spanish spadefoot toad, and Wagler's spadefoot toad. It is found in most of the Iberian Peninsula with isolated populations southern and western France. Description ''Pelobates cultripes'' is a big smooth-skinned toad with a silvery gold or greenish eye and a vertical pupil. It has a black spade on the hind foot, hence its name. The edged callus internus of the hind foot is converted to allow digging. The upperside is greyish-yellowish with dark brown or greenish blotches and spots. It grows up to 11 cm and is larger and greener than the common spadefoot, ''Pelobates fuscus''. The tadpoles are larger than those of most other toad species. Behavior This toad is mostly nocturnal, but occasionally vast numbers of it can be seen after rain. It hides in burrows up to 20 cm deep and can dig itself into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
