Final answer:
The chronological order, from oldest to newest, is Ardipithecus ramidus, Australopithecus afarensis, Paranthropus robustus, Early Homo, Homo erectus.
Step-by-step explanation:
The correct chronological order, from oldest to newest, is:
- Ardipithecus ramidus
- Australopithecus afarensis
- Paranthropus robustus
- Early Homo
- Homo erectus
Ardipithecus ramidus is the oldest hominid species discovered and is dated to about 5.6 million years ago. Australopithecus afarensis lived between 3.9 to 2.9 million years ago. Paranthropus robustus lived between 2 to 1.2 million years ago. Early Homo first appeared between 2.5 to 3 million years ago. Homo erectus is the most recent species in the given list and lived between 1.9 million to 143,000 years ago.