Lambertz, M.; Shelton, C.D.; Spindler, F.; Perry, S.F. (2016). A caseian point for the evolution of a diaphragm homologue among the earliest synapsids. Annals of the New York Academy of Sciences. 1385 (1): 3—20. doi:10.1111/nyas.13264. PMID27859325.
Lambertz, M.; Shelton, C.D.; Spindler, F.; Perry, S.F. (2016). A caseian point for the evolution of a diaphragm homologue among the earliest synapsids. Annals of the New York Academy of Sciences. 1385 (1): 3—20. doi:10.1111/nyas.13264. PMID27859325.