Brachythoraci
| Brachythoraci Temporal range:  | |
|---|---|
| Dunkleosteus and Titanichthys skulls in Wyoming Dinosaur Center | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | †Placodermi | 
| Order: | †Arthrodira | 
| Clade: | †Phlyctaenioidei | 
| Suborder: | †Brachythoraci Gross, 1932 | 
| Contained taxa | |
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Brachythoraci is an extinct suborder of arthrodire placoderms, armored fish most diverse during the Devonian.