Final answer:
The postcranial structure of Miocene hominoids includes small jaws and teeth, a specific skull shape, bipedal locomotion, and humanlike feet. These features reveal important information about the adaptations and behaviors of these ancient hominoids.
Step-by-step explanation:
The postcranial structure of Miocene hominoids refers to the skeletal structures in the body other than the skull. These features include small jaws and teeth, a skull shaped more like H. erectus or H. habilis, a sagittal keel, bipedal locomotion with a human gait, and humanlike feet with arches and ankles. These characteristics can provide important clues about the physical adaptations and behaviors of these ancient hominoids.