Çiçek, KerimKumaş, MeltemAyaz, DinçerTok, Cemal Varol2025-01-272025-01-2720122065-1155https://hdl.handle.net/20.500.12428/13989In this study, the age structure, growth and longevity of 27 individuals (8 juveniles, 8 males and 11 females) from the Mount Ararat (I?dir, Turkey) population of Phrynocephalus horvathi were examined with the method of skeletochronology. According to the obtained data, the median age was 3.5 (range= 2-5) for males and 4 (2-5) for females. Both sexes reach sexual maturity after their first hibernation, and no statistically significant difference in age composition was observed between the sexes. According to von Bertalanffy growth curves, asymptotic body length was calculated as 51.29 mm and growth coefficient k - 0.60. © Biharean Biologist, Oradea, Romania, 2012.eninfo:eu-repo/semantics/closedAccessGrowth; Longevity; Northeastern Anatolia; Phrynocephalus horvathi; SkeletochronologyArticle621121152-s2.0-84873885522Q4