Table 2.
Distribution of sex-determination and sex-reversal data across taxonomic orders in the HerpSexDet database (the number of species is shown).
| Class | Order | GSD | TSD1 | GSD and TSD1 | Thermal sex reversal proven | Sex reversal in nature |
|---|---|---|---|---|---|---|
| Amphibia | Anura | 135 | 112 | 7 | 2 | 6 |
| Caudata | 52 | 7 (1) | 6 (1) | 4 | — | |
| Gymnophiona | 2 | — | — | — | — | |
| Reptilia | Crocodylia | — | 14 | — | — | — |
| Rhynchocephalia | — | 1 | — | — | — | |
| Squamata | 509 | 58 (27) | 14 (6) | 3 | 2 | |
| Testudines | 32 | 98 (12) | 1 (1) | — | — | |
| Sum | 730 | 189 | 28 | 9 | 8 | |
1The number of species for which the existence of TSD is uncertain due to lack of reliable data (variable “TSD_type”, value “TSD uncertain”) is indicated in parentheses next to the total number of species with either certain or uncertain TSD.
29 species and two hybrids.