Question

In: Biology

What piece of evidence is used to demonstrate that Sahelanthropus tchadensis May have been a hominin?...

What piece of evidence is used to demonstrate that Sahelanthropus tchadensis May have been a hominin?

Long arms relative to legs
Divergent Big toe
Centralized foramen magnum
Bowl Shaped Pelvis

Solutions

Expert Solution

Answer: Option 3rd (Centralized foramen magnum) is the correct answer.

Explanation:

Sahelanthropus tchadensis is one of the oldest known species in the human family tree. This species lived sometime between 7 and 6 million years ago. The territory of living, as supposed, was West-Central Africa. Walking upright may have helped this species survive in diverse habitats, including forests and grasslands. This species had a combination of ape-like and human-like features.

Ape-like features included:

· A small brain (even slightly smaller than a chimpanzee’s),

· Sloping face,

· Very prominent brow ridges,

· And elongated skull.

Human-like features included:

· Small canine teeth,

· A short middle part of the face,

· And a spinal cord opening (Centralized foramen magnum) underneath the skull instead of towards the back as seen in non-bipedal apes.

According to paleontologist, hominins are primates that share characteristics such as "bipedalism, reduced canine size, and increasing brain size."

Some of the oldest evidence of a humanlike species moving about in an upright position comes from Sahelanthropus. The foramen magnum (the large opening where the spinal cord exits out of the cranium from the brain) is located further forward (on the underside of the cranium) than in apes or any other primate except humans. This feature indicates that the head of Sahelanthropus was held on an upright body, probably associated with walking on two legs (bipedalism). Today, many anthropologists agree that the 7 million year old Sahelanthropus was an early hominid while others suggests it was nothing more than an ancient ape.

gladiator answered 1 year ago
Next > < Previous

Related Solutions

Which of the paleoenvironment hypotheses have been used to describe early hominin diversity, and which have...
Which of the paleoenvironment hypotheses have been used to describe early hominin diversity, and which have been used to describe bipedalism?
Identify 3 taxa of hominin with standard binomial nomenclature, what specific sites those hominin have been...
Identify 3 taxa of hominin with standard binomial nomenclature, what specific sites those hominin have been found at, and who named those taxa. Often referred to colloquially as “Lucy”, which species of early hominin was named after a famous song? What was the actual name of that song, which artist performed it, on what album, and in what year? Which species was responsible for the Laetoli footprints? How was the famous site of Zhoukoudian found? What were the fossils of...
i.) Each early hominin was alone in Africa, with little evidence of other hominin species living...
i.) Each early hominin was alone in Africa, with little evidence of other hominin species living nearby. True or Flase ii) Bipedalism is an arboreal adaptation. True or Flase
What kind of samples when used as evidence may require the separation of the sample into...
What kind of samples when used as evidence may require the separation of the sample into its various chemical components? Try to think of one unique example and what a separation would tell you.
Dish drive the quality performance to that may be used to demonstrate that the care in...
Dish drive the quality performance to that may be used to demonstrate that the care in the treatment rendered are both cost-effective of high-quality
1) What is endosymbiosis? Which organelles may have arisen this way? What evidence is there for...
1) What is endosymbiosis? Which organelles may have arisen this way? What evidence is there for this theory? 2) Which cells in our bodies have cilia and flagella? Can you find other examples? How do these structures differ in structure and movement? How are they similar? 3) How do flagella differ between prokaryotes and eukaryotes?
Outline three reasons natural selection may have favored bipedal locomotion in the hominin lineage. In each...
Outline three reasons natural selection may have favored bipedal locomotion in the hominin lineage. In each case, explain why hominins became bipedal but other terrestrial primates, such as baboons, did not.
The hominin H. heidelbergensis represents a hominin believed to have become extinct about 10,000 years ago....
The hominin H. heidelbergensis represents a hominin believed to have become extinct about 10,000 years ago. a species found only in Asia. a sister group of H. habilis. archaic H. sapiens of the early Middle Pleistocene. Homo naledi is the best candidate for an intermediary between H. erectus and H. sapiens, given the large brain size. dates to about 2 million years ago, and the remains were likely accumulated by carnivores. is the most widely ranging Pleistocene hominin, found across...
The hominin H. heidelbergensis represents a hominin believed to have become extinct about 10,000 years ago....
The hominin H. heidelbergensis represents a hominin believed to have become extinct about 10,000 years ago. a species found only in Asia. a sister group of H. habilis. archaic H. sapiens of the early Middle Pleistocene. Homo naledi is the best candidate for an intermediary between H. erectus and H. sapiens, given the large brain size. dates to about 2 million years ago, and the remains were likely accumulated by carnivores. is the most widely ranging Pleistocene hominin, found across...
What evidence has been cited to support that humans have altered the planet sufficiently to place...
What evidence has been cited to support that humans have altered the planet sufficiently to place us into a new geological epoch, called the Anthropocene? A. Detectable changes to sediments globally, from the testing of nuclear weapons, the use of fertilizers, and the burning of fossil fuels B. A rise in greenhouse gas emissions and airborne particulates from fossil fuel combustion C. Changes that are likely to be evident in the fossil record of the future, such as an increase...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT