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The Rhinophrynidae are a family of frogs containing one extant genus, the monotypic Rhinophrynus,[1][2][3][4] and a number of fossil genera.[3][5] The family is sometimes known as the Mexican burrowing toads[1] or simply burrowing toads.[2]
| Rhinophrynidae Temporal range: Late Jurassic to present, | |
|---|---|
 | |
| Juvenile Rhinophrynus dorsalis | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Clade: | Pipoidea |
| Family: | Rhinophrynidae Günther, 1859 |
| Type genus | |
| Rhinophrynus | |
Rhinophrynus occurs in the Central America north from Costa Rica to Mexico and Texas.[1] Fossil finds of Rhinophrynidae come from Mexico, the United States, and Canada.[5] Rhinophrynus is a burrowing ant and termite eater.[2][4]
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The Rhinophrynidae are the sister taxon of the Pipidae.[1] The clade formed by these two genera is sometimes referred to as Xenoanura[4] or superfamily Pipoidea.[6]
- Rhinophrynus or Mexican burrowing toad Late Eocene-Recent[7]
- †Chelomophrynus Henrici 1991 Wagon Bed Formation, Wyoming United States, Eocene
- †Eorhinophrynus Hecht 1959 Polecat Bench Formation, Wyoming, United States, Paleocene
- †Rhadinosteus Henrici 1998 Morrison Formation, Utah, United States, Late Jurassic
The affinity of Eorhinophrynus is uncertain.[3]
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