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This diagram, in the form of a tree, shows how each frog family is related to other families, with each node representing a point of common ancestry. It is based on Frost et al. (2006), [ 44 ] Heinicke et al. (2009) [ 45 ] and Pyron and Wiens (2011).
Skeleton of the Surinam horned frog (Ceratophrys cornuta) In most amphibians, there are four digits on the fore foot and five on the hind foot, but no claws on either. Some salamanders have fewer digits and the amphiumas are eel-like in appearance with tiny, stubby legs. The sirens are aquatic salamanders with stumpy forelimbs and no hind limbs ...
Triadobatrachus is an extinct genus of salientian frog-like amphibians, including only one known species, Triadobatrachus massinoti. It is the oldest member of the frog lineage known, and an excellent example of a transitional fossil. It lived during the Early Triassic about 250 million years ago, in what is now Madagascar.
Rana (derived from Latin rana, meaning 'frog') is a genus of frogs commonly known as the Holarctic true frogs, pond frogs or brown frogs.Members of this genus are found through much of Eurasia and western North America.
Boophis is the only genus in the mantellid frog subfamily Boophinae. They are commonly known as bright-eyed or skeleton frogs. They show typical 'tree frog' traits, and are a good example of convergent evolution with morphologically similar species in the families Hylidae and Rhacophoridae, among others.
Skull in multiple views, with diagrams Kaprosuchus is known from a nearly complete skull 507 mm in length in which the lower jaw measured 603 mm long, total length is estimated to be around 2.42–3.77 m (7 ft 11 in – 12 ft 4 in) long. [ 3 ]
Boophis ankarafensis also known as Ankarafa skeleton frog is a species of frog in the family Mantellidae. [ 1 ] [ 2 ] It is endemic to Madagascar 's northwestern coast where it is only known from Ankarafa Forest, [ 2 ] a forest fragment in the Sahamalaza-Iles Radama National Park.
After the common frog (Rana temporaria), the edible frog (Pelophylax esculentus) and the smooth newt (Lissotriton vulgaris), the common toad is the fourth most common amphibian in Europe. [15] It is found throughout the continent with the exception of Iceland, the cold northern parts of Scandinavia, Ireland and a number of Mediterranean islands.