A 28-year-old male is brought to the mortuary for forensic examination following a fatal road traffic accident. The skeleton is largely intact. During age estimation, the forensic pathologist examines the epiphyseal plates of the long bones and notes complete fusion of all epiphyses. The third molars are fully erupted with complete root formation. Examination of the vertebral bodies shows no epiphyseal plates and complete ossification. Based on these skeletal findings, what is the most accurate age range for this individual?