4 Flashcards
Lucy’s species, Australopithecus afarensis, existed between _________ million years ago.
3.9-3.0
The first fossils of Australopithecus anamensis were discovered in:
Kenya
Paleoanthropologists debate whether or not Lucy used bipedal locomotion.
False
n comparison with modern humans, Australopithecus afarensis had:
Longer arm length RELATIVE TO leg length correct
True or false? Specimens of Australopithecus afarensis have projecting faces, more like those of chimpanzees than those of modern humans.
True
True or false? The finger bones of Australopithecus afarensis are slightly curved similar to those of chimpanzees.
True
The compound temporal/nuchal crest present on the crania of Australopithecus afarensis specimens resembles which of the following?
Chimps
The Laetoli footprints were preserved because they were covered with ___________ followed by light rain.
Volcanic ash
Australopithecus afarensis fossils exhibit very little variation in size.
False
Sterkfontein and which of the following are fossil hominin localities in South Africa?
Swartkrans
True or false? At the time of its discovery, many scientists, including Sir Arthur Keith, did not accept that the Taung child was a fossil of a human ancestor.
True
Which of the following is NOT a feature of the Taung Child fossil?
Human-like pelvis
Fossils found in Sterkfontein were dated largely using:
Biostratigraphy on microfauna correct
The name “Paranthropus robustus” was coined by ______, who first identified its teeth showed to him by one of his students.
Robert Broom
The SK 54 Australopithecus robustus cranium shows evidence of which of the following?
Leopard canine marks
Scientists currently agree that Australopithecus sediba was not an ancestor to the genus Homo.
False
Australopithecus sediba is a 1.9 million year old taxon found at which of the following sites?
Malapa
Why is Selam, the Dikika Baby specimen, so important?
It is one of the most complete fossils of a juvenile Australopithecus. correct
Which of the following is a bony ridge running front to back that protrudes out of the top of the skull in some Australopithecus species?
Sagittal
True or false? The size and shape of Lucy’s birth canal is evidence that infants of her species were born with very large brains, like modern humans.
False
