# Brachyopomorpha

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Extinct clade of amphibians

Brachyopomorpha Temporal range: Early Triassic - Middle Cretaceous, 252.3–120 Ma PreꞒ Ꞓ O S D C P T J K Pg N Pelorocephalus tenax Scientific classification Kingdom: Animalia Phylum: Chordata Clade: Tetrapoda Order: †Temnospondyli Suborder: †Stereospondyli Clade: †Trematosauria Clade: †Brachyopomorpha Warren and Marsicano, 2000 Genera and superfamilies †Bothriceps †Keratobrachyops †Brachyopoidea

**Brachyopomorpha** is a [clade](/source/Clade) of [stereospondyl](/source/Stereospondyl) [temnospondyls](/source/Temnospondyl) within the [infraorder](/source/Infraorder) [Trematosauria](/source/Trematosauria). It was constructed in 2000 to include *[Bothriceps australis](/source/Bothriceps)* and the [superfamily](/source/Superfamily_(zoology)) [Brachyopoidea](/source/Brachyopoidea).[1] It is [phylogenetically](/source/Phylogenetics) defined as a [stem-based](/source/PhyloCode) taxon including *[Pelorocephalus](/source/Pelorocephalus)* and all taxa closer to it than to *[Rhytidosteus](/source/Rhytidosteus)*. In contrast, Brachyopoidea is defined as a [node-based](/source/PhyloCode) taxon including *[Brachyops](https://en.wikipedia.org/w/index.php?title=Brachyops&action=edit&redlink=1)* and *Pelorocephalus* and all descendants of their most recent common ancestor. Because *Bothriceps* is not thought to be a descendant of that recent common ancestor and would be more [basal](/source/Basal_(phylogenetics)) than it, the genus is placed just outside Brachyopoidea and is considered to be a [sister taxon](/source/Sister_taxon) to the clade.[1][2]

Cladogram of Brachyopomorpha Brachyopomorpha Bothriceps Keratobrachyops Brachyopoidea Brachyopidae Chigutisauridae Damiani and Kitching, 2003[3]

*Bothriceps* was once considered to be a [brachyopid](/source/Brachyopidae) within Brachyopoidea, but is now placed on the brachyopoid stem closer to Brachyopoidea than to [Rhytidosteidae](/source/Rhytidosteidae) due to the presence of several [plesiomorphies](/source/Plesiomorphies) (ancestral characters). The probable presence of a tabular horn in *Bothriceps* also suggests that it is a basal brachyopomorph rather than a brachyopid.[1]

*[Keratobrachyops](/source/Keratobrachyops)*, once assigned to [Chigutisauridae](/source/Chigutisauridae), is now thought to be a basal brachyopomorph closely related to *Bothriceps*.[3]

## References

1. ^ [***a***](#cite_ref-WM00_1-0) [***b***](#cite_ref-WM00_1-1) [***c***](#cite_ref-WM00_1-2) Warren, A.; Marsicano, C. (2000). "A phylogeny of the Brachyopoidea". *Journal of Vertebrate Paleontology*. **20** (3): 462–483. [doi](/source/Doi_(identifier)):[10.1671/0272-4634(2000)020\[0462:APOTBT\]2.0.CO;2](https://doi.org/10.1671%2F0272-4634%282000%29020%5B0462%3AAPOTBT%5D2.0.CO%3B2). [hdl](/source/Hdl_(identifier)):[11336/93649](https://hdl.handle.net/11336%2F93649).

1. **[^](#cite_ref-YW00_2-0)** Yates, A. M.; Warren, A. A. (2000). ["The phylogeny of the "higher temnospondyls" (Vertebrata, Choanata)"](https://doi.org/10.1111%2Fj.1096-3642.2000.tb00650.x). *Zoological Journal of the Linnean Society*. **128**: 77–121. [doi](/source/Doi_(identifier)):[10.1111/j.1096-3642.2000.tb00650.x](https://doi.org/10.1111%2Fj.1096-3642.2000.tb00650.x).

1. ^ [***a***](#cite_ref-DK03_3-0) [***b***](#cite_ref-DK03_3-1) Damiani, R. J.; Kitching, J. W. (2003). "A new brachyopid temnospondyl from the *Cynognathus* Assemblage Zone, Upper Beaufort Group, South Africa". *Journal of Vertebrate Paleontology*. **23** (1): 67–78. [doi](/source/Doi_(identifier)):[10.1671/0272-4634(2003)23\[67:ANBTFT\]2.0.CO;2](https://doi.org/10.1671%2F0272-4634%282003%2923%5B67%3AANBTFT%5D2.0.CO%3B2).

## External links

- [Paleontology portal](https://en.wikipedia.org/wiki/Portal:Paleontology)

v t e Temnospondyli Kingdom: Animalia Phylum: Chordata Clade: Osteichthyes Clade: Sarcopterygii Clade: Tetrapodomorpha Clade: Stegocephali Tetrapodomorpha see Tetrapodomorpha Temnospondyli see below↓ Temnospondyli Temnospondyli Caerorhachis? Capetus Casineria? Iberospondylus Palatinerpeton Baphetoidea? Colosteidae? Edopoidea Edops Cochleosauridae Adamanterpeton Cochleosaurus Chenoprosopus Macrerpeton Nigerpeton? Procochleosaurus Saharastega? Dendrerpetontidae Balanerpeton Dendrerpeton Dvinosauria Acroplous Bermanerpeton Dvinosaurus Erpetosaurus Isodectes Kourerpeton Perryella? Timonya Trypanognathus Trimerorhachidae Eugyrinus? Lafonius Nannospondylus Neldasaurus Procuhy Trimerorhachis Tupilakosauridae Batrachosuchoides? Slaugenhopia Thabanchuia Tupilakosaurus Zatracheidae Acanthostomatops Chemnitzion Dasyceps Zatrachys Dissorophoidea see Dissorophoidea likely includes Lissamphibia Eryopidae Actinodon Chelydosaurus Clamorosaurus Eryops Onchiodon Osteophorus Stenokranio Syndyodosuchus? Stereospondylomorpha Cheliderpeton? Glanochthon Intasuchus Korkonterpeton Sclerocephalus Syndyodosuchus? Archegosauridae Melosaurinae Koinia Konzhukovia Melosaurus Tryphosuchus Uralosuchus Platyoposaurinae Archegosaurus Bageherpeton Bashkirosaurus Collidosuchus Kashmirosaurus Platyoposaurus Prionosuchus Stereospondyli see Stereospondyli See also: Batrachomorpha Eutemnospondyli Rhachitomi Euskelia Eryopiformes Eryopoidea Limnarchia Archegosauroidea Category

Taxon identifiers Brachyopomorpha Wikidata: Q4953498 Paleobiology Database: 165310

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