Australobatrachia

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Australobatrachia
Temporal range: Late Cretaceous–present
Caudiverbera.jpg
M fasciolatus.jpg
Calyptocephalella gayi above, Mixophyes fasciolatus below
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Suborder: Neobatrachia
Clade: Australobatrachia
Frost et al., 2006
Families

Australobatrachia ("southern frogs") is a clade of frogs in the suborder Neobatrachia. It comprises three families of frogs with a Gondwanan distribution, being known from Chile, Australia, and New Guinea. Together, they form the sister group to the superfamily Hyloidea. [1] [2]

Taxonomy

The common ancestor of all three families inhabited South America during the Early Cretaceous (about 125 million years ago). By about 100 million years ago, the ancestors of the Calyptocephalellidae diverged from the Myobatrachoidea, as the ancestral Myobatrachoidea moved south, colonizing the Australian continent via then-unglaciated Antarctica. The two families within Myobatrachoidea diverged from each other later in the Cretaceous or during the earliest Paleocene. [1] [3]

Australobatrachia contains the following subgroups: [1] [4]

Related Research Articles

<i>Nasikabatrachus</i> Genus of amphibians

Nasikabatrachus is a genus of frogs. It is presently treated as the only genus in the family Nasikabatrachidae, though previously it was included in the family Sooglossidae. Two species are recognized, Nasikabatrachus bhupathi and Nasikabatrachus sahyadrensis, both endemic to southwestern India. Both Nasikabatrachidae and Sooglossidae are thought to be the only extant families of the superfamily Sooglossoidea.

<span class="mw-page-title-main">True frog</span> Family of frogs

True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North America, northern South America, Europe, Africa, and Asia. The Asian range extends across the East Indies to New Guinea and a single species has spread into the far north of Australia.

<span class="mw-page-title-main">Antarctic flora</span> Distinct community of plants which evolved on the supercontinent of Gondwana

Antarctic flora are a distinct community of vascular plants which evolved millions of years ago on the supercontinent of Gondwana. Presently, species of Antarctica flora reside on several now separated areas of the Southern Hemisphere, including southern South America, southernmost Africa, New Zealand, Australia, and New Caledonia. Joseph Dalton Hooker was the first to notice similarities in the flora and speculated that Antarctica had served as either a source or a transitional point, and that land masses now separated might formerly have been adjacent.

<i>Leiopelma</i> Genus of amphibians

Leiopelma is a genus of New Zealand primitive frogs, belonging to the suborder Archaeobatrachia. It is the only genus in the monotypic family Leiopelmatidae. The leiopelmatids' relatively basal form indicates they have an ancient lineage. While some taxonomists have suggested combining the North American frogs of the genus Ascaphus in the family Ascaphidae with the New Zealand frogs of the genus Leiopelma in the family Leiopelmatidae, the current consensus is that these two groups constitute two separate families. The four extant species of Leiopelmatidae are only found in New Zealand.

<span class="mw-page-title-main">Neobatrachia</span> Suborder of amphibians

The Neobatrachia are a suborder of the Anura, the order of frogs and toads.

<span class="mw-page-title-main">Hylidae</span> Family of frogs

Hylidae is a wide-ranging family of frogs commonly referred to as "tree frogs and their allies". However, the hylids include a diversity of frog species, many of which do not live in trees, but are terrestrial or semiaquatic.

<span class="mw-page-title-main">South Polar region of the Cretaceous</span> Animals that lived below the Antarctic circle in the Cretaceous

The South Polar region of the Cretaceous comprised the continent of East Gondwana–modern day Australia and Antarctica–a product of the break-up of Gondwana in the Cretaceous Period. The southern region, during this time, was much warmer than it is today, ranging from perhaps 4–8 °C (39–46 °F) in the latest Cretaceous Maastrichtian in what is now southeastern Australia. This prevented permanent ice sheets from developing and fostered polar forests, which were largely dominated by conifers, cycads, and ferns, and relied on a temperate climate and heavy rainfall. Major fossil-bearing geological formations that record this area are: the Santa Marta and Sobral Formations of Seymour Island off the Antarctic Peninsula; the Snow Hill Island, Lopez de Bertodano, and the Hidden Lake Formations on James Ross Island also off the Antarctic Peninsula; and the Eumeralla and Wonthaggi Formations in Australia.

<span class="mw-page-title-main">Rhinodermatidae</span> Family of amphibians

Rhinodermatidae, also known as Darwin's frogs, mouth-breeding frogs or mouth-brooding frogs, is a small family of frogs found in temperate forests of southern Chile and adjacent Argentina.

<span class="mw-page-title-main">Rhacophoridae</span> Family of amphibians

The Rhacophoridae are a family of frogs that occur in tropical sub-Saharan Africa, South India and Sri Lanka, Japan, northeastern India to eastern China and Taiwan, south through the Philippines and Greater Sundas, and Sulawesi. They are commonly known as shrub frogs, or more ambiguously as "moss frogs" or "bush frogs". Some Rhacophoridae are called "tree frogs". Among the most spectacular members of this family are numerous "flying frogs".

<span class="mw-page-title-main">Ghost frog</span> Family of amphibians

Heleophrynidae is a family of frogs, commonly known as ghost frogs. They are thought to be the most basal group in the Neobatrachia. The family consists of two genera, Heleophryne and Hadromophryne, with seven species. Ghost frogs live in swift-moving mountain streams in South Africa. The common name of "ghost frogs" may have been coined because of their occurrence in Skeleton Gorge.

In phylogenetics, basal is the direction of the base of a rooted phylogenetic tree or cladogram. The term may be more strictly applied only to nodes adjacent to the root, or more loosely applied to nodes regarded as being close to the root. Note that extant taxa that lie on branches connecting directly to the root are not more closely related to the root than any other extant taxa.

<span class="mw-page-title-main">Hyloidea</span> Superfamily of amphibians

Hyloidea is a superfamily of frogs. Hyloidea accounts for 54% of all living anuran species. The superfamily Hyloidea branched off from its closest relative, the Australobatrachia, during the mid-Cretaceous. The fossil evidence found during the Cretaceous-Paleogene extinction event could not determine the effects upon the frogs, due to the lack of fossils. Increased forestation erupted after this extinction, possibly leading to more arboreal adaptations of these anurans to be best suited for this habitat.

<span class="mw-page-title-main">Coleorrhyncha</span> Suborder of true bugs

Coleorrhyncha or Peloridiomorpha, also known as moss bugs or beetle bugs, are a suborder of Hemiptera and represent an ancient lineage of moss-feeding insects. They show some similarities to the Heteroptera but have been considered distinct. It has a single extant family, the Peloridiidae. They are 2 to 5 millimetres in length, and feed on moss and liverworts. They have wings in some species which are reduced in others but all species are flightless and live in damp moss habitats and are associated with the distribution of Nothofagus trees in Australia, New Zealand, New Caledonia, and South America, which all were formerly part of the supercontinent Gondwana.

<span class="mw-page-title-main">Pelodryadinae</span> Subfamily of amphibians

Pelodryadinae, also known as Australian treefrogs, is a subfamily of frogs found in the region of Australia and New Guinea, and have also been introduced to New Caledonia, Guam, New Zealand, and Vanuatu.

<span class="mw-page-title-main">Phyllomedusinae</span> Subfamily of amphibians

Phyllomedusinae is a subfamily of hylid tree frogs found in the Neotropics commonly called leaf frogs. Formerly, they were often considered as their own family, Phyllomedusidae.

<span class="mw-page-title-main">Saltasaurinae</span> Extinct subfamily of dinosaurs

Saltasaurinae is a subfamily of titanosaurian sauropods known from the late Cretaceous period of South America, India and Madagascar.

<span class="mw-page-title-main">Calyptocephalellidae</span> Family of amphibians

The Calyptocephalellidae are a family of toads found in Chile containing two living genera, Calyptocephalella and Telmatobufo.

<span class="mw-page-title-main">Insular India</span> Isolated land mass which became the Indian subcontinent

The term Insular India refers to the isolated landmass which became the Indian subcontinent. Across the latter stages of the Cretaceous and most of the Paleocene, following the breakup of Gondwana, the Indian subcontinent remained an isolated landmass as the Indian Plate drifted across the Tethys Ocean, forming the Indian Ocean. The process of India's separation from Madagascar first began 88 million years ago, but complete isolation only occurred towards the end of the Maastrichtian, a process that has been suggested to be the creation of the Deccan Traps. Soon after, the land mass moved northward rather quickly, until contact with Asia was established 55 million years ago. Even then, both landmasses did not become fully united until around 35 million years ago, and periods of isolation occurred as recently as 24 million years ago.

<span class="mw-page-title-main">Myobatrachoidea</span>

Myobatrachoidea is a superfamily of frogs. It contains two families, both of which are found in Australia, New Guinea, and the Aru Islands. Some sources group these two families into a single family Myobatrachidae.

<span class="mw-page-title-main">Sooglossoidea</span>

Sooglossoidea is a superfamily of frogs. It contains only two highly divergent families consisting of three genera with two species each, one family being found in southwestern India and the other in the Seychelles.

References

  1. 1 2 3 Feng, Yan-Jie; Blackburn, David C.; Liang, Dan; Hillis, David M.; Wake, David B.; Cannatella, David C.; Zhang, Peng (2017-07-18). "Phylogenomics reveals rapid, simultaneous diversification of three major clades of Gondwanan frogs at the Cretaceous–Paleogene boundary". Proceedings of the National Academy of Sciences. 114 (29). doi: 10.1073/pnas.1704632114 . ISSN   0027-8424. PMC   5530686 . PMID   28673970.
  2. "Australobatrachia". www.mv.helsinki.fi. Retrieved 2022-08-20.
  3. "Fossilworks: Australobatrachia". www.fossilworks.org. Retrieved 2022-08-20.
  4. Otero, Rodrigo A.; Jimenez-Huidobro, Paulina; Soto-Acuña, Sergio; Yury-Yáñez, Roberto E. (2014-11-01). "Evidence of a giant helmeted frog (Australobatrachia, Calyptocephalellidae) from Eocene levels of the Magallanes Basin, southernmost Chile". Journal of South American Earth Sciences. 55: 133–140. doi:10.1016/j.jsames.2014.06.010. ISSN   0895-9811.