What does ecological evidence from the site where Ardi was found show? Ecological evidence from the site where Ardi was found shows that:
early hominins lived in a forest
. Fossils attributed to Australopithecus garhi were found at the Bouri site, in Ethiopia, along with: animal bones with cutmarks.
What does ecological evidence from the site where Ardi was found show quizlet?
Ecological evidence from the site where Ardi was found shows that
early hominins: lived in a forest
.
What did the Laetoli footprints have that demonstrated that the foot of Australopithecus afarensis was humanlike quizlet?
What is a foundational behavior of hominins?
What kind of environment did the earliest hominins probably live in?
What is the best known australopithecine represented by hundreds of fossils?
The best-known australopithecine, represented by hundreds of fossils and dozens of individuals found mostly at Laetoli and Hadar, is? The oldest pre-australopithecine, or a fossil link between late Miocene apes and australopithecines, found to date is?
Sahelanthropus tchadensis
. You just studied 59 terms!
Which hominin species is argued to have made the first stone tools known as the oldowan tool complex?
Paranthropus and Homo habilis
were both early toolmakers. Paranthropus may have been the first maker of stone tools, and these “robust” australopithecines may have relied heavily on lithic and bone technology to procure (and process) plant foods.
What do the footprints at Laetoli tell scientists about the way the creatures that made them moved?
The footprints demonstrate that
the hominins habitually walked upright as there are no knuckle-impressions
. The feet do not have the mobile big toe of apes; instead, they have an arch (the bending of the sole of the foot) typical of modern humans.
What is the importance of the discoveries at Laetoli in terms of our understanding of human evolution?
The Laetoli footprints provide a clear snapshot of an early hominin bipedal gait that probably involved a limb posture that was slightly but significantly different from our own, and these data support the hypothesis that
important evolutionary changes to hominin bipedalism occurred within the past 3.66 Myr
.
What do the Laetoli footprints show us quizlet?
“The Laetoli Footprints” received significant recognition by the public, providing
convincing evidence of bipedalism in Pliocene hominids
based on analysis of the impressions. The footprints and skeletal structure excavated at Laetoli showed clear evidence that bipedalism preceded enlarged brains in hominids.
What are hominins quizlet?
What was the foundational behavior of hominins quizlet?
A hominin is defined as having two obligate behaviors:
bipedal locomotion
and nonhoning chewing complex. The foundational behavior of Hominini was: bipedalism.
Why is it important to study early hominins?
The study of life history is important in paleoanthropology because
the life history pattern exhibited by modern humans is unique among primates
. In particular, modern humans are characterized by an extended juvenile period, large adolescent growth-spurt, and incredibly long post-reproductive life-span.
Where was evidence of the earliest hominins found quizlet?
Earliest confirmed hominin (4.4 mya). Found in
East Africa (Ethiopia)
weighed between 90-115 pound.
What was probably the environment of the earliest hominins quizlet?
New evidence shows that the earliest hominids evolved in a
woodland environment
.
Which of the following is a line of evidence that has helped inform our understanding of the climate of the Pleistocene quizlet?
Which of the following is a line of evidence that has helped inform our understanding of the climate of the Pleistocene?
The study of oxygen isotopes preserved in shells of marine invertebrates
.
What was the main reason the discovery of Australopithecus Deyiremeda was important?
What assumption or hypothesis on the early humans was proven wrong due to the discovery of Lucy?
What is the fossil evidence that refutes Darwin’s bipedalism hunting hypothesis?
Which fossil species is first associated with the production and use of stone tools?
The first stone tool manufacturing and use was probably done by early transitional humans in East Africa 4.5 million years ago. The first stone tools were made by
Homo erectus
.
Which species is believed to have been the first ones to develop stone tool technology?
For what purposes did hominids create stone tools?
Hominids created tools of all kinds
to help them with some task at hand
. It doesn’t take a big brain to do this. By using tools, they could do better and survive longer. Even chimps use sticks to get at grubs or other foods.
What was significant about the Laetoli site in Tanzania quizlet?
What was the key anthropological discovery made at the site of Laetoli?
Mary Leakey and coworkers discovered
fossils of Australopithecus afarensis
at Laetoli in 1978, not far from where a group of hominin (of human lineage) fossils had been unearthed in 1938. The fossils found at Laetoli date to a period between 3.76 and 3.46 million years ago (mya).
What information could be determined from the famous Australopithecus footprints found at Laetoli?
What information could be determined from the famous Australopithecus footprints found at Laetoli?
The creatures that made the footprints were bipedal
. Scientists on a dig have discovered a 2.5-million-year-old hominin fossil in Tanzania.
What does the Laetoli site tell us about our distant ancestors?
New fossil footprints excavated at the famous Laetoli site in Tanzania suggest that
our bipedal ancestors had a wide range of body sizes
. Walking on two hind limbs, or bipedalism, is one of the defining characteristics of the evolutionary lineage that gave rise to modern humans.
What type of environment did the Laetoli animals live in?
What evidence suggests that human ancestors walked upright before they evolved large brains?
erectus (collectively called australopithecines) helped convince anthropologists that walking upright came before big brains in the evolution of humans. This was demonstrated most impressively in 1974 with
the finding of Lucy, a nearly complete australopithecine skeleton
.
What did the Laetoli footprints demonstrate?
Where are the Laetoli footprints today quizlet?
How do scientists know how old the Ardi fossil is?
How do scientists know how old the Ardi fossil is?
The Ardi fossil was found in sediment that was sandwiched between volcanic deposits that dated to 4.4 million years ago
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Which feature defines all of the hominins?
What is a hominin anthropology?
Which of these is part of the hominid family quizlet?
The members of the family Hominidae, which includes
humans, chimpanzees, gorillas, and orangutans
. The idea that all modern-day humans evolved from members of Homo erectus that were living in Africa.
What kind of environment did the earliest hominins probably live in?
it showed diversity in the hominid fossil record 3.5 mya. d. it probably lived in
woodlands
.
What is the foundational behavior of the hominin?
A hominin is defined as having two obligate behaviors:
bipedal locomotion and nonhoning chewing complex
. The Oldowan Complex is a part of the: Lower Paleolithic.
