Origin Dinosaurs
When Dinosaurs Conquered the World
The Reign of Dinosaurs
Coelacanth Axelrodichthys araripensis
Locality Brazil
Cervical vertebra of Siamosaurus suteethrni
Locality Ban Samran, Khon Kaen Province, Thailand
Teeth of Siamosaurus suteethorni
Locality Phu Kum Khao, Kalasin Province, Thailand
Dorsal vertebra of Siamosaurus suteethorni
Locality Ban Samran, Khon Kaen Province, Thailand
Homo sapiens 200,000 years ago - present
Homo neanderthalensis 600,000 - 30,000 years ago
Homo erectus 1.8 million - 200,000 years ago
Australopithecus africanus 3 - 2.3 million years ago
Sahelanthropus tchadensis 7 - 6 million years ago
Higher Primates (Anthropoids)
Australopithecus afarensis "Lucy"
Dated to 3.18 million years ago
Discovered in the Afar Desert of Ethipia in 1974, this first Australopithecus afarensis skeleton ever found was nicknamed "Lucy" after the Beatles'song "Lucy in the Sky with Diamonds".
Finds comprise bone fragments that make up about 40 percent of the total skeleton showing that she was about 1.1 m tall. Erupted wisdom teeth (third molars) in the jaw place her age at early twenties at the time of death. The shape of the hip bone indicates that she was female and could walk upright, which proves that human ancestors were bipedal long before they knew how to make stone tools.
Acheulean stone tools, Mousterian Stone Tools
