WorksheetsEarly hominins
Total questions: 13
Worksheet time: 11mins
The last common ancestor of humans and chimps lived during which time period:
Oligocene
Miocene
Pliocene
Pleistocene
You discover a nearly complete fossil skeleton of what you think is a hominin. You want to assess whether this hominin was bipedal. What anatomical features would suggest bipedalism?
Which hominin am I?
-Oldest hominin currently known
-The anatomy of my skull suggests I walked on two feet
Ardipithecus ramidus
Ardipithecus kadabba
Saheleanthropus tchadensis
Australopithecus anamensis
Is Ardi considered a facultative or obligate biped?
facultative
obligate
Ardi's anatomy suggests the last common ancestor of chimps and humans was a:
palmigrade climber
leaper
knuckle walker
biped
Which pelvis(es) belong to a biped? [A, B, C from left to right]
A
B
C
Early hominins possessed relatively small canines, which were non-honing. What does this suggest about them?
high level of male-male competition was present in groups
low level of male-male competition was present in groups
they were solitary
they ate less meat
Which feature of A. anamensis's dental arcade would be considered a derived trait? (more recently evolved trait that helps distinguish taxa)
small canines
2:1:2:3 dental formula
parallel tooth rows
y-5 molars
Which hominin is associated with the Laetoli footprints?
A. anamensis
Ardipithecus ramidus
A. sediba
A. afarensis
The earliest stone tools are associated with:
A. garhi
A. afarensis
A. africanus
A. ramidus
What features indicate that this is a robust, rather than gracile, Australopithecine?
Are robust Australopithecines our direct ancestors?
YES
NO
Based on our current knowledge about fossil hominins, which Australopithecines may have been the ancestor to the genus Homo?
A. sediba
A. afarensis
A. garhi
A. africanus
A. anamensis
