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Question
Among the pre-4-mya fossils that some paleoanthropologists include in the hominin family, ________ is thought to be a biped based on information from a single toe bone.a. Sahelanthropus tchadensis
b. Ardipithecus kadabba
c. Orrorin tugenensis
d. Ardipithecus ramidus
Answer
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You are an expert paleontologist reviewing the work of Professor Bonefinder, who recently discovered the remains of a primate fossil from South America. The fossil has a long snout, a tail, and large orbits that face toward the side and are only partially enclosed. The fossil has been securely dated to about 30 mya. Bonefinder concluded that this fossil is a hominoid. Do you think Professor Bonefinder's analysis is correct? Explain your evaluation.