| Trematopidae Temporal range:
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| Skeleton of Acheloma cumminsi in the Field Museum of Natural History. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Order: | †Temnospondyli |
| Clade: | †Olsoniformes |
| Family: | †Trematopidae Williston, 1910 |
| Genera | |
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Acheloma | |
Trematopidae is a family of dissorophoid temnospondyls spanning the late Carboniferous to the early Permian. Together with Dissorophidae, the family forms Olsoniformes, a clade comprising the medium-large terrestrial dissorophoids. Trematopids are known from numerous localities in North America, primarily in New Mexico, Oklahoma, and Texas, and from the Bromacker quarry in Germany.