The oldest recognizable fossil ancestors that lead to humans, dating back to 7 million years ago, include Sahelanthropus tchadensis and Orrorin tugenensis.

1. Sahelanthropus tchadensis: This species is one of the oldest known human ancestors, which lived between 7 and 6 million years ago. Fossils of Sahelanthropus have been found in Chad, Central Africa. The most famous specimen, a skull nicknamed 'Toumai', is thought to be between 6.8 and 7.2 million years old.

2. Orrorin tugenensis: This species is also one of the oldest known human ancestors, which lived around 6.1 to 5.7 million years ago. Fossils of Orrorin have been found in the Tugen Hills of Kenya. The species is significant because it is suggested to have been bipedal, meaning it could walk on two legs.

On the other hand, Australopithecus afarensis and Paranthropus are not as old. Australopithecus afarensis lived between 3.9 and 2.9 million years ago, and Paranthropus lived between 2.7 and 1.2 million years ago.

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The oldest recognizable fossil ancestors that lead to humans, dating back to 7 million years ago, include Sahelanthropus tchadensis and Orrorin tugenensis.

1. Sahelanthropus tchadensis: This species is one of the oldest known human ancestors, which lived between 7 and 6 million years ago. Fossils of Sahelanthropus have been found in Chad, Central Africa. The most famous specimen, a skull nicknamed 'Toumai', is thought to be between 6.8 and 7.2 million years old.

2. Orrorin tugenensis: This species is also one of the oldest known human ancestors, which lived around 6.1 to 5.7 million years ago. Fossils of Orrorin have been found in the Tugen Hills of Kenya. The species is significant because it is suggested to have been bipedal, meaning it could walk on two legs.

On the other hand, Australopithecus afarensis and Paranthropus are not as old. Australopithecus afarensis lived between 3.9 and 2.9 million years ago, and Paranthropus lived between 2.7 and 1.2 million years ago.

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The oldest recognizable fossil ancestors that lead to humans, dating back to 7 million years ago, include Sahelanthropus tchadensis and Orrorin tugenensis.

1. Sahelanthropus tchadensis: This species is one of the oldest known human ancestors, which lived between 7 and 6 million years ago. Fossils of Sahelanthropus have been found in Chad, Central Africa. The most famous specimen, a skull nicknamed 'Toumai', is thought to be between 6.8 and 7.2 million years old.

2. Orrorin tugenensis: This species is also one of the oldest known human ancestors, which lived around 6.1 to 5.7 million years ago. Fossils of Orrorin have been found in the Tugen Hills of Kenya. The species is significant because it is suggested to have been bipedal, meaning it could walk on two legs.

On the other hand, Australopithecus afarensis and Paranthropus are not as old. Australopithecus afarensis lived between 3.9 and 2.9 million years ago, and Paranthropus lived between 2.7 and 1.2 million years ago.

The oldest (7 million year old) recognizable fossils ancestors that lead to humans include:Group of answer choicesAustralopithecus afarensis.Paranthropus.Sahelanthropus tchandensis.Orrorin tugenensis.

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