Trachygnatha

Polypodia

Sarcopodia

Neopoda

Osteopoda

Synischia

Deinognatha

Odontognatha

**Trachygnatha**

**Trachygnatha** (lit. "jagged jaws") are a clade of semiaquatic Deinognatha.

## Description

Trachygnathans first emerged around 4217ma, although it is largely similar to the early Odontognathans in terms of anatomy and lifestyle.

Trachygnathans were the apex predators of the equatorial swamps, very similarly to crocodilians on earth, hunting terrestrial prey alongside the riverbanks as well as semi-aquatic animals, such as the Prenobrachids. They were the only observed clade of Odontognatha to retain the robust jaws of early Deinognatha, which are useful for restraining prey in the water.

## Navigation

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											- *polylophodon thomasi*
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													+ Neoxenopsidae
														- Teleopsidae
														- Chelaphora
															* Stenochelaphora
															* Pachychelaphora
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												* File:StenopsidaeEvo.pngArchestenopsidae
												* Neostenopsidae
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														- Archepeloropsidae
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					- Megalobrachidae†
						* Archemegalobrachia†
							+ Archemegalobrachidae†
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						* Titanopoda†
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								- Eubaropoda†
									* *Nanopus proximensis*†
									* Eubaropodidae†
								- Pachypoda†
					- Deinognatha
						* Eudeinognatha†
							+ Eudeinognathidae†
								- *Euoplos gulielmi*†
							+ Malleognatha†
						* Odontognatha
							+ **Trachygnatha**†
								- *Telmarchos krisi*†
							+ Dolichognatha
								- Eudolichognatha
									* Archedolichognatha†
									* Hybognatha
								- Pelagotheria†
									* Actatheria†
										+ *Eurypus geberi*†
									* Thalattotheria†
										+ Isopterygia†
										+ Anisopterygia†
											- *Pontodrakon nicholsi*†

* **Chemophyta**
	+ Archaeophyta
	+ Xenophyta
		- Caulophyta
			* Neocaulophyta
				+ Eucaulophyta
					- Eucaulophytaceae
						* Eucaulophytoideae
						* Nothodendrales†
					- Reptophyta
				+ Brachyphyta
					- Archebrachyphyta
						* Eubrachyphyta
							+ Eubrachyphytaceae
							+ Desmophyta
								- Carnophyta†
								- Chromatophyta
									* Archechromatophyta
										+ Archechromatophytacea
										+ Aphyllophyta
									* Zygophyta
										+ Zygophytacea
											- Zygodendrales
											- Archezygophytacea
										+ Harpactophyta†
						* Tylophyta
					- Cryptophyta
						* Eucryptophyta
						* Pagophyta
			* Necrophyta
		- Xylophyta
			* Euxylophyta
				+ Archexylophyta
					- Archexylophytacaea
					- Coelophyta
				+ Nodophyta
			* Altiphyta†
				+ *Trilobophyllus axidenti*†

 † = Extinct