Data on temperature-dependent sex determination in crocodilians obtained through a systematic review of the existing literature. Reference paper: González, E. J., Martínez-López, M., Morales-Garduza, M. A., García-Morales, R., Charruau, P., Gallardo-Cruz, J. A. 2019. The sex determination pattern in crocodilians: a systematic review of three decades of research. Journal of Animal Ecology. Metadata: country: following the UN 3-letter code. study site: as stated by the original authors. latitude (in decimal degrees): as stated by the original authors or as found in Google Earth. first author: first author's last name. year: year when the study was performed as stated by the original authors reference: APA format. journal contributor: author acronym. family: following The Reptile Database (www.reptile-database-org). genus: following The Reptile Database (www.reptile-database-org). species: following The Reptile Database (www.reptile-database-org). type: type of experiment (F, field; L, laboratory). sexing: hatchling sexing method as reported by the authors. evidence: type of evidence provided to state a pattern (QL: qualitative, QT: quantitative). TSD: pattern stated for TSD when evidence was argued to exist (NA, none sought; NE: no evidence of TSD found; FM, female-male transition pattern stated, FMF, female-male-female pattern stated). PFM: stated pivotal temperature (i.e. those at which a 50:50 sex proportion is obtained) of the FM section. TRTFM_min: stated transitional minimum temperature of the FM section. TRTFM_max: stated transitional maximum temperature of the FM section. PMF: stated pivotal temperature (i.e. those at which a 50:50 sex proportion is obtained) of the MF section. TRTMF_min: stated transitional minimum temperature of the MF section. TRTMF_max: stated transitional maximum temperature of the MF section. sample: sample size. T: mean incubation temperature (ºC). T.SD: standard deviation around the mean (ºC). F: number of female hatchlings. M: number of male hatchlings.