|The extant bipedid Bipes biporus|
Bipedidae is a family of amphisbaenian lizards that includes the extant genus Bipes represented by four species from Mexico and the extinct genus Anniealexandria represented by one species that lived in what is now Wyoming during the earliest Eocene approximately 55 million years ago. Phylogenetic analysis indicates that Bipedidae is most closely related to the family Blanidae, which includes the living genus Blanus.
- Longrich, N. R.; Vinther, J.; Pyron, R. A.; Pisani, D.; Gauthier, J. A. (2015). "Biogeography of worm lizards (Amphisbaenia) driven by end-Cretaceous mass extinction". Proceedings of the Royal Society B: Biological Sciences. 282 (1806): 20143034. doi:10.1098/rspb.2014.3034. PMC 4426617. PMID 25833855.
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