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As one of the earliest known Placoderms
present today
It is believed that the Messel Pit area was geologically active during the Eocene
about the time that dinosaurs began to appear
The only fossils known are the teeth
Laetoli, Australopithecus afarensis (early human footprints/tracks) Kentrosaurus As one of the earliestThis is a portion of a trail of footprints probably left by 2 Australopithecus afarensis individuals some 3. 5 million years ago, at Laetoli, northern Tanzania. Australopithecus afarensis is an extinct hominid which lived between 3. 9 and 2. 9 million years ago. In common with the younger Australopithecus africanus, A. afarensis was slenderly built. From analysis it has been thought that A. afarensis was ancestral to both the genus Australopithecus