Hybognatha

## Description

The hybognathans are a clade of Septentrian dolichognathans that live in brackish swamps and in the river channels of rainforests. They’ve adapted for life in the murky water by evolving the ability to echolocate. The lower portion of their respiratory passages have a series of vibrating membranes that produce high-pitched sounds, which are then focused by a melon-like organ on the underside of the cephalothorax into a directional “beam” of sonar.

After the Mass Extinction Event, they are the sole surviving clade of Synischians left on the planet, with only one genus surviving the extinction event in small pockets of rainforest still available in Septentria. This low diversity meant that they could not take control of Septentria's terrestrial niches.

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												* File:StenopsidaeEvo.pngArchestenopsidae
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								- *Telmarchos krisi*†
							+ Dolichognatha
								- Eudolichognatha
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									* **Hybognatha**
								- Pelagotheria†
									* Actatheria†
										+ *Eurypus geberi*†
									* Thalattotheria†
										+ Isopterygia†
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											- *Pontodrakon nicholsi*†

* **Chemophyta**
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							+ Eubrachyphytaceae
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								- Chromatophyta
									* Archechromatophyta
										+ Archechromatophytacea
										+ Aphyllophyta
									* Zygophyta
										+ Zygophytacea
											- Zygodendrales
											- Archezygophytacea
										+ Harpactophyta†
						* Tylophyta
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						* Pagophyta
			* Necrophyta
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				+ Archexylophyta
					- Archexylophytacaea
					- Coelophyta
				+ Nodophyta
			* Altiphyta†
				+ *Trilobophyllus axidenti*†

 † = Extinct