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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).
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.
Heels are separated by an elastic, resilient structure named the 'frog'. In the palmar/plantar part of the foot, above the heels and the frog, there are two oval bulges named the 'bulbs'. When viewed from the lower surface, the hoof wall's free margin encircles most of the hoof. The triangular frog occupies the center area.
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.
It is monotypic, being represented by the single species, Myobatrachus gouldii, also known as the turtle frog. It gets its name from the resemblance to a shell-less chelonian, which is a type of turtle. It is described to have an extremely small narrow head, short limbs, and a round body. They can get up to 45 millimetres (1.8 in) long. [2]
The hairy frog (Trichobatrachus robustus) also known as the horror frog or Wolverine frog, is a Central African species of frog in the family Arthroleptidae. It is typically considered monotypic within the genus Trichobatrachus , [ 2 ] but based on its genetics , it should be included in Astylosternus instead. [ 3 ]
Vieraella is an extinct genus of frogs from the Lower Jurassic (Early Pliensbachian to Toarcian) Roca Blanca Formation of Argentina, and one of the oldest true frogs known. . This genus is known by a single exceptionally well-preserved specimen, P.V.L. 2188, with at least eight presacrals vertebrae, free ribs, ulna and radius not fused, bony skull with some discoglossid charac
Hoplobatrachus tigerinus, commonly known as the Indian bullfrog, is a large species of fork-tongued frog found in South and Southeast Asia. A relatively large frog, it is normally green in color, although physiological traits vary between populations. Sexual dimorphism exists between males and females.