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Brachycephaloidea (Terrarana) is a monophyletic group of frogs that includes the families: Brachycephalidae, Caligophrynidae, Craugastoridae, Eleutherodactylidae, Ceuthomantidae, Neblinaphrynidae and Strabomantidae. [1] The superfamily contains 882 species that inhabit the New World tropics, subtropics, and Andean regions.
The archaeobatrachians are the most primitive of frogs. These frogs have morphological characteristics which are found mostly in extinct frogs, and are absent in most of the modern frog species. Most of these characteristics are not common between all the families of Archaeobatrachia, or are not absent from all the modern species of frogs.
The oldest fossil "proto-frog" Triadobatrachus is known from the Early Triassic of Madagascar (250 million years ago), but molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest ...
The Neobatrachia (Neo-Latin neo-("new") + batrachia ("frogs")) are a suborder of the Anura, the order of frogs and toads.. This suborder is the most advanced and apomorphic of the three anuran suborders alive today, hence its name, which literally means "new frogs" (from the hellenic words neo, meaning "new" and batrachia, meaning "frogs").
Frogs from the Microhylidae occur throughout the tropical and warm temperate regions of North America, South America, Africa, eastern India, Sri Lanka, Southeast Asia, New Guinea, and Australia. Although most are found in tropical or subtropical regions, a few species can be found in arid or nontropical areas.
They are sometimes known under the common name rain frogs. [1] [2] Formerly the subfamily Eleutherodactylinae of the family Leptodactylidae, it was raised to the family status following a major revision of New World direct-developing frogs in 2008. [1] [3] As currently defined, the family has more than 200 species (as of 2014, 206 [1] or 207 [2 ...
Hyloidea is a superfamily of frogs. [1] Hyloidea accounts for 54% of all living anuran species. [2] The superfamily Hyloidea branched off from its closest relative, the Australobatrachia, during the mid-Cretaceous. [3]
Several of the genera within the Leptodactylidae lay their eggs in foam nests. These can be in crevices, on the surface of water, or on forest floors. These foam nests are some of the most varied among frogs. When eggs hatch in nests on the forest floor, the tadpoles remain within the nest, without eating, until metamorphosis.
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