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Rare baby dinosaur fossil is full of surprises

By Ashley Strickland, CNN

Updated 1304 GMT (2104 HKT) October 11, 2018

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A mass grave dated to 5,000 years ago in Poland contains 15 people who were all from the same extended family.
Photos: Ancient finds
A mass grave dated to 5,000 years ago in Poland contains 15 people who were all from the same extended family.
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This is an artist's impression of the Ambopteryx longibrachium, one of only two dinosaurs known to have membranous wings. The dinosaur's fossilized remains were found in Liaoning, in northeast China, in 2017.
Photos: Ancient finds
This is an artist's impression of the Ambopteryx longibrachium, one of only two dinosaurs known to have membranous wings. The dinosaur's fossilized remains were found in Liaoning, in northeast China, in 2017.
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Reconstruction of a small tyrannosauroid Suskityrannus hazelae from the Late Cretaceous.
Photos: Ancient finds
Reconstruction of a small tyrannosauroid Suskityrannus hazelae from the Late Cretaceous.
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Researchers have been studying Archaeopteryx fossils for 150 years, but new X-ray data reveal that the bird-like dinosaur may have been an "active flyer."
Photos: Ancient finds
Researchers have been studying Archaeopteryx fossils for 150 years, but new X-ray data reveal that the bird-like dinosaur may have been an "active flyer."
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A 160,000-year-old Denisovan jawbone found in a cave on the Tibetan Plateau is the first evidence of the presence of this ancient human group outside the Denisova Cave in Siberia.
Photos: Ancient finds
A 160,000-year-old Denisovan jawbone found in a cave on the Tibetan Plateau is the first evidence of the presence of this ancient human group outside the Denisova Cave in Siberia.
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An artist's illustration of Simbakubwa kutokaafrika, a gigantic carnivore that lived 23 million years ago. It is known from fossils of most of its jaw, portions of its skull and parts of its skeleton. It was a hyaenodont, a now-extinct group of mammalian carnivores, that was larger than a modern-day polar bear.
Photos: Ancient finds
An artist's illustration of Simbakubwa kutokaafrika, a gigantic carnivore that lived 23 million years ago. It is known from fossils of most of its jaw, portions of its skull and parts of its skeleton. It was a hyaenodont, a now-extinct group of mammalian carnivores, that was larger than a modern-day polar bear.
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The right upper teeth of the newly discovered species Homo luzonensis. The teeth are smaller and more simplified than those belonging to other Homo species.
Photos: Ancient finds
The right upper teeth of the newly discovered species Homo luzonensis. The teeth are smaller and more simplified than those belonging to other Homo species.
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The towering and battle-scarred "Scotty" is the world's largest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada.
Photos: Ancient finds
The towering and battle-scarred "Scotty" is the world's largest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada.
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Researchers discovered unknown species at the Qingjiang fossil site on the bank of the Danshui River, near its junction with the Qingjiang River in Hubei Province, China.
Photos: Ancient finds
Researchers discovered unknown species at the Qingjiang fossil site on the bank of the Danshui River, near its junction with the Qingjiang River in Hubei Province, China.
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During a study of the ancient Iberian population, the remains of a man and woman buried together at a Spanish Bronze Age site called Castillejo de Bonete showed that the woman was a local and the man's most recent ancestors had come from central Europe.
Photos: Ancient finds
During a study of the ancient Iberian population, the remains of a man and woman buried together at a Spanish Bronze Age site called Castillejo de Bonete showed that the woman was a local and the man's most recent ancestors had come from central Europe.
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Durrington Walls is a Late Neolithic henge site in Wiltshire. Pig bones recovered at the site revealed that people and livestock traveled hundreds of miles for feasting and celebration.
Photos: Ancient finds
Durrington Walls is a Late Neolithic henge site in Wiltshire. Pig bones recovered at the site revealed that people and livestock traveled hundreds of miles for feasting and celebration.
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An artist's impression of a Galleonosaurus dorisae herd on a riverbank in the Australian-Antarctic rift valley during the Early Cretaceous, 125 million years ago.
Photos: Ancient finds
An artist's impression of a Galleonosaurus dorisae herd on a riverbank in the Australian-Antarctic rift valley during the Early Cretaceous, 125 million years ago.
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The remains of 137 children and 200 llamas were found in Peru in an area that was once part of the Chimú state culture, which was at the peak of power during the 15th century. The children and llamas might have been sacrificed due to flooding.
Photos: Ancient finds
The remains of 137 children and 200 llamas were found in Peru in an area that was once part of the Chimú state culture, which was at the peak of power during the 15th century. The children and llamas might have been sacrificed due to flooding.
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The tooth of an extinct giant ground sloth that lived in Belize 27,000 years ago revealed that the area was arid, rather than the jungle that it is today.
Photos: Ancient finds
The tooth of an extinct giant ground sloth that lived in Belize 27,000 years ago revealed that the area was arid, rather than the jungle that it is today.
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An artist's illustration of what the small tyrannosaur Moros intrepidus would have looked like 96 million years ago. These small predators would eventually become Tyrannosaurus rex.
Photos: Ancient finds
An artist's illustration of what the small tyrannosaur Moros intrepidus would have looked like 96 million years ago. These small predators would eventually become Tyrannosaurus rex.
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Examples of tools manufactured from monkey bones and teeth recovered from the Late Pleistocene layers of Fa-Hien Lena Cave in Sri Lanka show that early humans used sophisticated techniques to hunt monkeys and squirrels.
Photos: Ancient finds
Examples of tools manufactured from monkey bones and teeth recovered from the Late Pleistocene layers of Fa-Hien Lena Cave in Sri Lanka show that early humans used sophisticated techniques to hunt monkeys and squirrels.
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Footprints thought to belong to Neanderthals have been found in the Catalan Bay Sand Dune.
Photos: Ancient finds
Footprints thought to belong to Neanderthals have been found in the Catalan Bay Sand Dune.
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Two of the fossil specimens discovered in Korea had reflective eyes, a feature still apparent under light.
Photos: Ancient finds
Two of the fossil specimens discovered in Korea had reflective eyes, a feature still apparent under light.
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An artist's illustration of Mnyamawamtuka moyowamkia, a long-necked titanosaur from the middle Cretaceous period recently found in Tanzania. Its tail vertebra has a unique heart shape, which contributed to its name. In Swahili, the name translates to "animal of the Mtuka with a heart-shaped tail."
Photos: Ancient finds
An artist's illustration of Mnyamawamtuka moyowamkia, a long-necked titanosaur from the middle Cretaceous period recently found in Tanzania. Its tail vertebra has a unique heart shape, which contributed to its name. In Swahili, the name translates to "animal of the Mtuka with a heart-shaped tail."
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The oldest evidence of mobility is 2.1 billion years old and was found in Gabon. The tubes, discovered in black shale, are filled with pyrite crystals generated by the transformation of biological tissue by bacteria, found in layers of clay minerals.
Photos: Ancient finds
The oldest evidence of mobility is 2.1 billion years old and was found in Gabon. The tubes, discovered in black shale, are filled with pyrite crystals generated by the transformation of biological tissue by bacteria, found in layers of clay minerals.
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Researchers recently studied climate change in Greenland as it happened during the time of the Vikings. By using lake sediment cores, they discovered it was actually warmer than previously believed. They studied at several sites, including a 21st-century reproduction of Thjodhild's church on Erik the Red's estate, known as Brattahlíð, in present day Qassiarsuk, Greenland.
Photos: Ancient finds
Researchers recently studied climate change in Greenland as it happened during the time of the Vikings. By using lake sediment cores, they discovered it was actually warmer than previously believed. They studied at several sites, including a 21st-century reproduction of Thjodhild's church on Erik the Red's estate, known as Brattahlíð, in present day Qassiarsuk, Greenland.
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This is an artist's illustration of Antarctica, 250 million years ago. The newly discovered fossil of a dinosaur relative, Antarctanax shackletoni, revealed that reptiles lived among the diverse wildlife in Antarctica after the mass extinction.
Photos: Ancient finds
This is an artist's illustration of Antarctica, 250 million years ago. The newly discovered fossil of a dinosaur relative, Antarctanax shackletoni, revealed that reptiles lived among the diverse wildlife in Antarctica after the mass extinction.
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Bone points and pierced teeth found in Denisova Cave were dated to the early Upper Paleolithic. A new study establishes the timeline of the cave, and it sheltered the first known humans as early as 300,000 years ago.
Photos: Ancient finds
Bone points and pierced teeth found in Denisova Cave were dated to the early Upper Paleolithic. A new study establishes the timeline of the cave, and it sheltered the first known humans as early as 300,000 years ago.
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This artist's illustration shows a marine reptile similar to a platypus hunting at dusk. This duckbilled animal was the first reptile to have unusually small eyes that most likely required it to use other senses, such as the tactile sense of its duckbill, to hunt for prey.
Photos: Ancient finds
This artist's illustration shows a marine reptile similar to a platypus hunting at dusk. This duckbilled animal was the first reptile to have unusually small eyes that most likely required it to use other senses, such as the tactile sense of its duckbill, to hunt for prey.
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Although it's hard to spot, researchers found flecks of lapis lazuli pigment, called ultramarine, in the dental plaque on the lower jaw of a medieval woman.
Photos: Ancient finds
Although it's hard to spot, researchers found flecks of lapis lazuli pigment, called ultramarine, in the dental plaque on the lower jaw of a medieval woman.
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A Neanderthal fossil, left, and a modern human skeleton. Neanderthals have commonly be considered to show high incidences of trauma compared with modern humans, but a new study reveals that head trauma was consistent for both.
Photos: Ancient finds
A Neanderthal fossil, left, and a modern human skeleton. Neanderthals have commonly be considered to show high incidences of trauma compared with modern humans, but a new study reveals that head trauma was consistent for both.
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The world's oldest figurative artwork from Borneo has been dated to 40,000 years ago, when humans were living on what's now known as Earth's third-largest island.
Photos: Ancient finds
The world's oldest figurative artwork from Borneo has been dated to 40,000 years ago, when humans were living on what's now known as Earth's third-largest island.
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A 250,000-year-old Neanderthal child's tooth contains an unprecedented record of the seasons of birth, nursing, illness and lead exposures over the first three years of its life.
Photos: Ancient finds
A 250,000-year-old Neanderthal child's tooth contains an unprecedented record of the seasons of birth, nursing, illness and lead exposures over the first three years of its life.
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An artist's illustration shows giant nocturnal elephant birds foraging in the ancient forests of Madagascar at night. A new study suggests that the now-extinct birds were nocturnal and blind.
Photos: Ancient finds
An artist's illustration shows giant nocturnal elephant birds foraging in the ancient forests of Madagascar at night. A new study suggests that the now-extinct birds were nocturnal and blind.
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Kebara 2 is the most complete Neanderthal fossil recovered to date. It was uncovered in Israel's Kebara Cave, where other Neanderthal remains have been found.
Photos: Ancient finds
Kebara 2 is the most complete Neanderthal fossil recovered to date. It was uncovered in Israel's Kebara Cave, where other Neanderthal remains have been found.
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The world's oldest intact shipwreck was found by a research team in the Black Sea. It's a Greek trading vessel that was dated to 400 BC. The ship was surveyed and digitally mapped by two remote underwater vehicles.
Photos: Ancient finds
The world's oldest intact shipwreck was found by a research team in the Black Sea. It's a Greek trading vessel that was dated to 400 BC. The ship was surveyed and digitally mapped by two remote underwater vehicles.
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This fossil represents a new piranha-like fish from the Jurassic period with sharp, pointed teeth. It probably fed on the fins of other fishes.
Photos: Ancient finds
This fossil represents a new piranha-like fish from the Jurassic period with sharp, pointed teeth. It probably fed on the fins of other fishes.
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The fossil skull of the young Diplodocus known as Andrew, held by<strong> </strong>Cary Woodruff, director of paleontology at the Great Plains Dinosaur Museum.
Photos: Ancient finds
The fossil skull of the young Diplodocus known as Andrew, held by Cary Woodruff, director of paleontology at the Great Plains Dinosaur Museum.
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Two small bones from the Ciemna Cave in Poland are the oldest human remains found in the country. The condition of the bones also suggests that the child was eaten by a large bird.
Photos: Ancient finds
Two small bones from the Ciemna Cave in Poland are the oldest human remains found in the country. The condition of the bones also suggests that the child was eaten by a large bird.
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This artist's illustration shows the newly discovered dinosaur species Ledumahadi mafube foraging in the Early Jurassic of South Africa. Heterodontosaurus,another South African dinosaur, can also be seen in the foreground.
Photos: Ancient finds
This artist's illustration shows the newly discovered dinosaur species Ledumahadi mafube foraging in the Early Jurassic of South Africa. Heterodontosaurus,another South African dinosaur, can also be seen in the foreground.
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A 73,000-year-old red cross-hatch pattern was drawn on a flake of silicrete, which forms when sand and gravel cement together, and found in a cave in South Africa.
Photos: Ancient finds
A 73,000-year-old red cross-hatch pattern was drawn on a flake of silicrete, which forms when sand and gravel cement together, and found in a cave in South Africa.
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A suite of Middle Neolithic pottery including typical Danilo ware, figulina and rhyta that was used to hold meat, milk, cheese and yogurt.
Photos: Ancient finds
A suite of Middle Neolithic pottery including typical Danilo ware, figulina and rhyta that was used to hold meat, milk, cheese and yogurt.
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These four dinosaurs showcase the evolution of alvarezsaurs. From left, Haplocheirus, Xiyunykus, Bannykus and Shuvuuia reveal the lengthening of the jaws, reduction of teeth and changes in the hand and arm.
Photos: Ancient finds
These four dinosaurs showcase the evolution of alvarezsaurs. From left, Haplocheirus, Xiyunykus, Bannykus and Shuvuuia reveal the lengthening of the jaws, reduction of teeth and changes in the hand and arm.
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Eorhynchochelys sinensis is an early turtle that lived 228 million years ago. It had a toothless beak, but no shell.