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Laurin, Michel; Reisz, Robert R. (1989-03-01). "Taxonomic position and phylogenetic relationships of Colobomycter pholeter, a small reptile from the Lower Permian of Oklahoma". Canadian Journal of Earth Sciences. 26 (3): 544–550. Bibcode:1989CaJES..26..544L. doi:10.1139/e89-046. ISSN0008-4077.
Spindler, Frederik; Voigt, Sebastian; Fischer, Jan (2019-07-08). "Edaphosauridae (Synapsida, Eupelycosauria) from Europe and their relationship to North American representatives". PalZ. 94: 125–153. doi:10.1007/s12542-019-00453-2. S2CID198140317.
Reisz, Robert R.; Godfrey, Stephen J.; Scott, Diane (2009-03-12). "Eothyris and Oedaleops: do these Early Permian synapsids from Texas and New Mexico form a clade?". Journal of Vertebrate Paleontology. 29 (1): 39–47. doi:10.1671/039.029.0112. S2CID85602931.
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Laurin, Michel; Reisz, Robert R. (1989-03-01). "Taxonomic position and phylogenetic relationships of Colobomycter pholeter, a small reptile from the Lower Permian of Oklahoma". Canadian Journal of Earth Sciences. 26 (3): 544–550. Bibcode:1989CaJES..26..544L. doi:10.1139/e89-046. ISSN0008-4077.