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Taung Child
The Taung Child (or Taung Baby) is the fossilised skull of a young Australopithecus africanus. It was discovered in Taung, South Africa in 1924 and described as a new species by Raymond Dart in 1925. The skull was one the first early human fossils to be found in Africa, and the first evidence that humanity originated from the continent.
The Taung skull is in repository at the University of Witwatersrand. Dean Falk, a specialist in brain evolution, has called it "the most important anthropological fossil of the twentieth century."
The Taung Child was originally thought to have been about six years old at death because of the presence of deciduous teeth, but is now believed to have been about three or four, based on studies of rates of enamel deposition on the teeth. Many scientists debated the Taung Child's age, as it was unclear if they grew at the speed of a human, or of an ape. Compared to an ape, they would have been aged about 4 years, and compared to a human, they would have been aged around 5–7 years old. The skull has a cranial capacity of 400–500 cc, which is comparable to that of a modern adult chimpanzee. Because mature brain size is attained within the first few years of life, the relatively small size is unlikely to be attributed to the specimen being a juvenile. The skull also possesses features more commonly found in humans than apes, including a rising forehead and round eye sockets. Although the lower portion of the nose resembles a chimpanzee, the overall shorter shape is human-like. Likewise, the lower portion of the face is protruded, though to a lesser degree than in modern apes. A bony shelf found within the inner jaw of apes could not be found. Dart opted to describe the remains as a "man-ape" rather than as an "ape-man" to highlight the more human features present compared to the remains found of the more recent Pithecanthropus erectus.
In 2006, Lee Berger announced the Taung Child probably was killed by an eagle or other large predatory bird, citing the similarity of the damage to the skull and eye sockets of the Taung Child to that seen in modern primates that are known to have been killed by eagles. There are talon marks in the eyes as well as a depression along the skull that is common in creatures that have been preyed upon by eagles.
In the early 20th century, the workers at limestone quarries in Southern Africa routinely uncovered fossils from the tufa formations that they mined. The tufa did not form consistently, and over time cavities were left open and they became beneficial areas for animals to take shelter in. As a result, many bones began to build up in these areas. These areas were mostly sandstone, and they stood in the way of successful mining. So, miners would use explosives to clear these areas, and discard all the debris. However, many fossils began to show up, and these were saved by many of the miners. Many were of extinct fauna, which included baboons and other primates, and the more complete or somehow more interesting fossils were kept as curiosities by the Europeans who managed operations.
In 1924, workers at the Buxton Limeworks, near Taung, showed a fossilized primate skull to Edwin Gilbert Izod, the visiting director of the Northern Lime Company, the managing company of the quarry. The director gave it to his son, Pat Izod, who displayed it on the mantle over the fireplace. When Josephine Salmons, a friend of the Izod family, paid a visit to Pat's home, she noticed the primate skull, identified it as from an extinct monkey and realised its possible significance to her mentor, Raymond Dart.
Salmons was the first female student of Dart, an anatomist at the University of Witwatersrand. Salmons was permitted to take the fossilized skull and presented it to Dart, who also recognized it as a significant find. Dart asked the company to send any more interesting fossilized skulls that were unearthed. When a consulting geologist, Robert Young, paid a visit to the quarry office, the director, A. E. Speirs, presented him with a collection of fossilised primate skulls that had been gathered by a miner, Mr. De Bruyn. A. E. Speirs was using a particular fossil as a paperweight, and Young asked him for this as well. Young sent some of the skulls back to Dart. When Dart examined the contents of the crate, he found a fossilized endocast of a skull showing the impression of a complex brain. He quickly searched through the rest of the fossils in the crates, and matched it to a fossilized skull of a juvenile primate, which had a shallow face and fairly small teeth.
Only forty days after he first saw the fossil, Dart completed a paper that named the species of Australopithecus africanus, the "southern ape from Africa", and described it as "an extinct race of apes intermediate between living anthropoids and man". The paper appeared in the 7 February 1925 issue of the journal Nature. The fossil was soon nicknamed the Taung Child.
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Taung Child
The Taung Child (or Taung Baby) is the fossilised skull of a young Australopithecus africanus. It was discovered in Taung, South Africa in 1924 and described as a new species by Raymond Dart in 1925. The skull was one the first early human fossils to be found in Africa, and the first evidence that humanity originated from the continent.
The Taung skull is in repository at the University of Witwatersrand. Dean Falk, a specialist in brain evolution, has called it "the most important anthropological fossil of the twentieth century."
The Taung Child was originally thought to have been about six years old at death because of the presence of deciduous teeth, but is now believed to have been about three or four, based on studies of rates of enamel deposition on the teeth. Many scientists debated the Taung Child's age, as it was unclear if they grew at the speed of a human, or of an ape. Compared to an ape, they would have been aged about 4 years, and compared to a human, they would have been aged around 5–7 years old. The skull has a cranial capacity of 400–500 cc, which is comparable to that of a modern adult chimpanzee. Because mature brain size is attained within the first few years of life, the relatively small size is unlikely to be attributed to the specimen being a juvenile. The skull also possesses features more commonly found in humans than apes, including a rising forehead and round eye sockets. Although the lower portion of the nose resembles a chimpanzee, the overall shorter shape is human-like. Likewise, the lower portion of the face is protruded, though to a lesser degree than in modern apes. A bony shelf found within the inner jaw of apes could not be found. Dart opted to describe the remains as a "man-ape" rather than as an "ape-man" to highlight the more human features present compared to the remains found of the more recent Pithecanthropus erectus.
In 2006, Lee Berger announced the Taung Child probably was killed by an eagle or other large predatory bird, citing the similarity of the damage to the skull and eye sockets of the Taung Child to that seen in modern primates that are known to have been killed by eagles. There are talon marks in the eyes as well as a depression along the skull that is common in creatures that have been preyed upon by eagles.
In the early 20th century, the workers at limestone quarries in Southern Africa routinely uncovered fossils from the tufa formations that they mined. The tufa did not form consistently, and over time cavities were left open and they became beneficial areas for animals to take shelter in. As a result, many bones began to build up in these areas. These areas were mostly sandstone, and they stood in the way of successful mining. So, miners would use explosives to clear these areas, and discard all the debris. However, many fossils began to show up, and these were saved by many of the miners. Many were of extinct fauna, which included baboons and other primates, and the more complete or somehow more interesting fossils were kept as curiosities by the Europeans who managed operations.
In 1924, workers at the Buxton Limeworks, near Taung, showed a fossilized primate skull to Edwin Gilbert Izod, the visiting director of the Northern Lime Company, the managing company of the quarry. The director gave it to his son, Pat Izod, who displayed it on the mantle over the fireplace. When Josephine Salmons, a friend of the Izod family, paid a visit to Pat's home, she noticed the primate skull, identified it as from an extinct monkey and realised its possible significance to her mentor, Raymond Dart.
Salmons was the first female student of Dart, an anatomist at the University of Witwatersrand. Salmons was permitted to take the fossilized skull and presented it to Dart, who also recognized it as a significant find. Dart asked the company to send any more interesting fossilized skulls that were unearthed. When a consulting geologist, Robert Young, paid a visit to the quarry office, the director, A. E. Speirs, presented him with a collection of fossilised primate skulls that had been gathered by a miner, Mr. De Bruyn. A. E. Speirs was using a particular fossil as a paperweight, and Young asked him for this as well. Young sent some of the skulls back to Dart. When Dart examined the contents of the crate, he found a fossilized endocast of a skull showing the impression of a complex brain. He quickly searched through the rest of the fossils in the crates, and matched it to a fossilized skull of a juvenile primate, which had a shallow face and fairly small teeth.
Only forty days after he first saw the fossil, Dart completed a paper that named the species of Australopithecus africanus, the "southern ape from Africa", and described it as "an extinct race of apes intermediate between living anthropoids and man". The paper appeared in the 7 February 1925 issue of the journal Nature. The fossil was soon nicknamed the Taung Child.