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14 Cards in this Set
- Front
- Back
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About when do undisputed primates appear in the fossil record?
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55 mya
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An important evolutionary shift that marked the origin of the anthropoids included which change?
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less leaping and more climbing through the trees with all fours
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The biggest primate ever, Gigantopithecus, is estimated to have stood
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10 to 12 feet tall.
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Starting around _____, we find more fossils of ground-dwelling, open-country apes, whose larger back teeth with thicker enamel point to an increased mixed vegetable diet that included harder foods such as nuts.
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12 mya
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The "Taung Baby" looks like a young ape except for a couple of important differences. One of those differences is
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the location of the foramen magnum.
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Why is the "Taung Baby" still known as Australopithecus africanus, even though it is now classified as a hominin?
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The rules of scientific nomenclature require that first-used names stick, even if they later prove to be descriptively inaccurate.
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Which of the following genera is NOT extinct?
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Homo
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The sagittal crest is
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a ridge of bone, running from font to back along the top of the skull
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What is the purpose of the sagittal crest?
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Muscles attach to it to aid in chewing
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Lucy probably lived in
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a mixed forest and bushland area
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Savanna adapted early hominins are classified in genus
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Paranthropus
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Orrorin is thought by some to be a hominin because of its
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bipedalism
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What is "robust" about the so-called robust early hominins?
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Chewing areas
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Competitive exclusion is
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When one species competes with others for the resources of a particular area and wins
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