World-First Fossil Shows Dinosaur Sitting On Clutch Of Eggs Like A Bird

It’s hard to imagine a mighty T. rex kneeling delicately above a clutch of eggs, but new research surrounding a fossilized oviraptor suggests that this behavior may have indeed been practiced by some dinosaurs.

The first non-avialan dinosaur (species outside of the clade of dinosaurs related to living birds) fossil to feature an adult dinosaur sat on top of a clutch of eggs that contain embryonic remains has been detailed in Science Bulletin.

What’s more, the embryos were at different stages, suggesting the eggs would hatch at different times, something that is usually determined by when the parent starts incubating.

“This isn’t the first time an oviraptorid has been found in such a way, nor are these the first-ever oviraptorid embryos,” study author Shundong Bi, a professor at the Indiana University of Pennsylvania, told IFLScience.

“But it is the first time that an adult has been found atop embryo-bearing eggs. It’s also the first nesting oviraptorid to be discovered outside the Gobi Desert.”

Brooding, seen in chickens that sit on their eggs to incubate them during development, was thought to be an unlikely behavior in non-avialan dinosaurs whose heavy bodies would surely squish their progeny.

However, this new fossil found near Ganzhou, China, is the first discovered having preserved a non-avialan dinosaur atop an egg clutch that still contains embryonic remains.

The researchers believe the presence of an adult on eggs containing embryos at advanced growth stages provides strong support for the brooding hypothesis in some non-avialan dinosaurs.

Interestingly, the embryos inside the eggs are at different developmental stages, which points to the possibility that had they survived the eggs would’ve hatched at different times.

“The asynchronous hatching was not widespread among dinosaurs,” said Bi.

“This phenomenon, known as asynchronous hatching, is pretty peculiar and uncommon even in modern birds, the living descendants of dinosaurs.”

The researchers say their findings demonstrate that the evolution of reproductive biology along bird-line archosaurs (a large group of vertebrates that includes dinosaurs and pterosaurs and is represented today by birds) was complex and not the linear, incremental process it’s previously assumed to have been.

They theorize that some aspects of non-avialan theropod reproduction may have been unique to these dinosaurs and not passed to the avialan ancestors that eventually gave rise to modern birds.

Recent research detailed how the avialan feature of flight likely evolved twice in dinosaurs before the clade containing modern birds’ ancestors came into the picture.

This new insight presents a further trait of avialan dinosaurs and animals that may have been shared by some of their distant cousins.

Tiny, 540-Million-Year-Old Human Ancestor Didn’t Have an Anus

A speck-size creature without an anus is the oldest known prehistoric ancestor of humans, a new study finds. Researchers found the remains of the 540-million-year-old critter — a bag-like sea organism — in central China.

The creature is so novel, it has its own family (Saccorhytidae), as well as its own genus and species (Saccorhytus coronaries), named for its wrinkled, sac-like body. (“Saccus” means “sac” in Latin, and “rhytis” means “wrinkle” in Greek.)

S. coronaries, with its oval body and large mouth, is likely a deuterostome, a group that includes all vertebrates, including humans, and some invertebrates, such as starfish.

“We think that as an early deuterostome, this may represent the primitive beginnings of a very diverse range of species, including ourselves,” Simon Conway Morris, a professor of evolutionary palaeobiology at the University of Cambridge, said in a statement. “To the naked eye, the fossils we studied look like tiny black grains, but under the microscope the level of detail is jaw-dropping.”

At first glance, however, S. coronaries do not appear to have much in common with modern humans. It was about a millimeter (0.04 inches) long, and likely lived between grains of sand on the seafloor during the early Cambrian period.

While the mouth onS. coronaries were large for its teensy body, the creature doesn’t appear to have an anus.

“If that was the case, then any waste material would simply have been taken out back through the mouth, which from our perspective sounds rather unappealing,” Conway Morris said.

Tiny ancestor

Other deuterostome groups are known from about 510 million to 520 million years ago, a time when they had already started to evolve into vertebrates, as well as sea squirts, echinoderms (starfish and sea urchins), and hemichordates (a group that includes acorn worms).

However, these incredibly diverse animals made it hard for scientists to figure out what the common deuterostome ancestor would have looked like, the researchers said.

The newfound microfossils answered that question, they said. The researchers used an electron microscope and a computed tomography (CT) scan to construct an image of S. coronaries.

“We had to process enormous volumes of limestone — about 3 tonnes [3 tons] — to get to the fossils, but a steady stream of new finds allowed us to tackle some key questions: Was this a very early echinoderm or something even more primitive?” study co-researcher Jian Han, a paleontologist at Northwest University in China, said in the statement. “The latter now seems to be the correct answer.”

The analysis indicated that S. coronaries had a bilaterally symmetrical body, a characteristic it passed down to its descendants, including humans. It was also covered with thin, flexible skin, suggesting it had muscles of some kind that could perhaps help it wriggle around in the water and engulf food with its large mouth, the researchers said.

Small, conical structures encircling its mouth may have allowed the water it swallowed to escape from its body. Perhaps these structures were the precursor of gill slits, the researchers said.

Molecular clock

Now that researchers know that deuterostomes existed 540 million years ago, they can try to match the timing to estimates from biomolecular data, known as the “molecular clock.”

Theoretically, researchers can determine when two species diverged by quantifying the genetic differences between them. If two groups are distantly related, for instance, they should have extremely different genomes, the researchers said.

However, there are few fossils from S. coronaries’ time, making it difficult to match the molecular clocks of other animals to this one, the researchers said. This may be because animals before deuterostomes were simply too minuscule to leave fossils behind, they said.

The findings were published online in the journal Nature.

In another paper, researchers reported on the discovery of another type of tiny animal fossil from the late Cambrian. These creatures, called loriciferans, measured about 0.01 inches (0.3 mm) and, like S. coronaries, lived between grains of sand, the researchers said in a study published online today in the journal Nature Ecology and Evolution.

The newly identified species, Eolorica deadwoodensis, discovered in western Canada, shows when multicellular animals began living in areas once inhabited by single-celled organisms, the researchers said.

4,800-Year-Old Fossil of Mother Embracing Baby Found in Taiwan

It is a fitting discovery as Mother’s Day approaches.

Archaeologists have uncovered the ancient remains of a young mother and an infant child locked in a 4,800-year-old embrace. The remarkable find was among 48 sets of remains unearthed from graves in Taiwan, including the fossils of five children. 

Researchers were stunned to discover the maternal moment, and they say these Stone Age relics are the earliest sign of human activity found in central Taiwan.

Preserved for nearly 5,000 years, the skeleton found in the Taichung area shows a young mother gazing down at the baby cradled in her arms.

Researchers turned to carbon dating to determine the ages of the fossils, which they traced back to the Neolithic Age, a period within the Stone Age.

Excavation began in May 2014 and took a year for archaeologists to complete.

But of all the remains found in the ancient graves, one pair set stood out from the rest.

‘When it was unearthed, all of the archaeologists and staff members were shocked. 

‘Why? Because the mother was looking down at the baby in her hands,’ said Chu Whei-lee, a curator in the Anthropology Department at Taiwan’s National Museum of Natural Science.

According to the researchers’ measurements, the mother was just 160 cm tall, or 5 foot 2 inches.

The infant in her arms is 50 cm tall – just over a foot-and-a-half.

This breathtaking discovery came as a surprise to the researchers on sight, but it isn’t the first of its kind.

In the past, archaeologists have dug up remains of similar moments which have been preserved for thousands of years.

Notably, Chinese archaeologists unearthed the interlocked skeletons of a mother and child last year from an early Bronze Age archaeological site branded the ‘Pompeii of the East’, the People’s Daily Online reported.

The mother is thought to have been trying to protect her child during a powerful earthquake that hit Qinghai province, central China, in about 2,000 BC.

Experts speculated that the site was hit by an earthquake and flooding of the Yellow River.

Photographs of the skeletal remains show the mother looking up above as she kneels on the floor, with her arms around her young child. Archaeologists say they believe her child was a boy. 

22 ancient tombs were discovered in Central China’s Henan

A cluster of 22 ancient tombs spanning nearly 1,600 years have recently been found in Central China’s Henan province.

Specifically, two tombs dating back to the Eastern Han Dynasty (25-220), 12 built in the Song Dynasty (960-1279), and eight others from the Ming (1368-1644) and Qing (1644-1911) dynasties were discovered on a hill in Laozhuangshi Village of Weishi County in Kaifeng city, the then-capital city during the Northern Song Dynasty (960-1127).

The Song tombs, mainly made of brick-chamber structures with stairways, are believed to belong to a family.

Archaeologists have found delicate decorations inside, as the chamber walls were adorned with colorful murals themed on flowers, birds, mythical creatures, furniture, weapons, and more.

Doors and windows crafted in imitation wood structures were also discovered inside the chambers.

“Among the discoveries were chairs, tables with tableware as well as wine or teapots placed atop, alongside other items such as scissors, flat irons, clothes racks, and wardrobes,” said Chang Hongjie, who works with the provincial cultural relics and archaeology institute.

Chang added that the interior setting vividly provides a glimpse into the daily life of the tomb owners, offering valuable insights into the social life and burial customs during the Song Dynasty.

The interior decoration and exterior design of the tomb chambers replicate the residential houses and yards in reality, which helps to understand the life scenarios in Kaifeng during the Song Dynasty, according to the researchers.

Shang-Dynasty Town Discovered in Northern China

The mysterious origins of ancient bronzeware found in a part of northern China may have been uncovered, with the discovery of the ruins of a complete Bronze Age town in the area.

Archaeologists have now recovered hundreds of astonishing artifacts — including bronze drinking vessels, painted pottery, ornaments inlaid with turquoise and carved pieces of jade — at the vast Zhaigou archaeological site, about 70 miles (110 kilometers) south of the modern city of Yulin in Shaanxi province. 

The relics, dating from more than 3,000 years ago, were made during the Shang Dynasty, which ruled northern China from about 1600 B.C. to 1046 B.C.

Archaeologists described the find at a news conference in Beijing by China’s National Cultural Heritage Administration.

Experts said that local people had been unearthing ancient artifacts on their farmland since the 1940s, but their origins were unknown. Now, the discovery of the entire Bronze Age settlement at the Zhaigou site, spread over 11 hills and covering more than 1.2 square miles (3 square kilometers), explains their history, the archaeologists said.

“All of the basic elements of a central settlement have been discovered at the site,” Xu Lianggao, a researcher with China’s Institute of Archaeology, told the state-owned newspaper China Daily. “We found some tombs and large-scale structures in this area in the past, but this time the complete face of a settlement has been unveiled.”

Ancient settlement

Shaanxi along with neighboring Henan and Shanxi, make up the so-called  “cradle” of ancient Chinese civilization in the Yellow River basin; and the Shang Dynasty is the earliest for which there is archaeological evidence, although the Xia Dynasty is said to have preceded it between 2070 B.C. and 1600 B.C.

A total of 13 ancient Chinese dynasties had their capitals in Shaanxi over more than 1,000 years, explaining why the modern province has been a source of many major archaeological finds.

Excavations at the Zhaigou archaeological site started in June 2022, and the ancient town is now recognized as the largest in the region, with some of the wealthiest tombs yet discovered, according to reports of the news conference.

Archaeologists have already found nine aristocratic tombs at Zhaigou, of which seven are rectangular tombs with passages, indicating they belonged to local leaders, Sun Zhanwei, a researcher at the Shaanxi Academy of Archaeology, told China Daily.

“Tomb passages symbolize a high social status,” he said. “In this hierarchy, those without a high status could not have a tomb passage.” 

The Bronze Age town’s center was made with rammed-earth, a building technique in which a mix of damp soil is compacted inside a mold or framework. Buildings with different functions have also been discovered there, including artisan workshops and pottery kilns.

According to the Chinese state-owned television channel CGTN, archaeologists at Zhaigou have also unearthed several bronze pieces of horse chariots and the remains of horses, which will be “crucial evidence for exploring the emergence of chariots in China and the development of chariot burial customs.”

Archaeologists have now unearthed more than 200 items from tombs there, such as lacquerware, that are similar to those found at other Shang dynasty sites.

Experts at the news conference said that the ruins at Zhaigou may have once been the capital of a separate state that had been conquered by the Shang, who was based in the city of Yinxu in Henan, and thereafter paid tribute to them. 

12,000 Years Ago, Mysterious Egg-Headed People Inhabited China

Archaeologists excavated 25 human skeletons with elongated skulls dating back perhaps as long as 12,000 years ago from Houtaomuga archaeological site in northeast China.

The strange shape of the skulls symbolizes a part of the ritual in ancient China. The discovery provides additional proof that cranial alterations were prevalent in ancient East Asia and was a customary practice throughout the world during prehistoric times.

According to a study published in the American Journal of Physical Anthropology in 2019, a team of researchers, led by bioarchaeologist Quanchao Zhang and paleoanthropologist Qian Wang, discovered 25 skeletons at a location known as Houtaomuga.

The remains were dated between approximately 12,000 and 5,000 years ago. Out of the 25 skeletons, 11 had skulls that had been intentionally elongated, with flattened bones at both the front and back of the head.

The researchers from China’s Jilin University and Texas A&M University who conducted the excavations were surprised at the abundance of “anomalies” and suggested that many were “egg-shaped.”

Study co-researcher Qian Wang, an associate professor in the Department of Biomedical Sciences at the Texas A&M University College of Dentistry said: “This is the earliest discovery of signs of intentional head modification in Eurasia continent, perhaps in the world.

If this practice began in East Asia, it likely spread westward to the Middle East, Russia, and Europe through the steppes as well as eastward across the Bering land bridge to the Americas.” 

The Chinese civilization is one of the most ancient and continuous in the world. While their recorded history can be traced back to the 5th century BC, with the emergence of the Zhou dynasty, there is archaeological evidence that suggests their history dates back even further.

The earliest documented records refer to semi-mythical people called the “Yellow Emperor” and his beastly advisors – known as the “Foolish Old Men.”

Currently, the Chinese egg-shaped skulls are considered to be the oldest in the world. Besides, it was noted that the tradition of stretching heads had been formed long before the Neolithic Revolution (First Agricultural Revolution) took place. It was believed that the tradition of skull modification started around 9,000 years ago.

According to Archaeology, the discovered skulls exhibited artificially elongated braincases and flattened bones at both the front and back of the head.

The researchers identified three different types of cranial deformations in eleven of the skulls. Out of these 11, five were adults, with one female and others male. The remaining skulls belonged to children, and the ages of the individuals varied from 3 to 40 years old.

Scientists still do not know why in ancient times people deliberately pulled their skulls out and where it started. The children’s heads were clamped in a special vice or in a device of two boards. In the process, not only the bones of the skull were stretched, but also the inside structure deformed. At the same time, the bones of the skull became very thin.

Archaeologists believed that humans with deformed skulls were trained to perform important social roles. For example, to become priests of a certain cult.

They believed that elongated skulls would open some unusual abilities, and allow them to communicate with higher powers. At least, people probably thought that by pulling back their heads, they acquire a strong social status in their society.

For centuries, our ancestors utilized various wooden, rag, and rope techniques to scar their own and their children’s heads, seeking aesthetic enhancement. The desire for such body modification has persisted worldwide for thousands of years, with some still practicing it, especially in Africa.

The reason behind this practice remains uncertain, puzzling scientists who can only surmise that some compelling motivation drove our forebears to endure such pain. Even though the Houtaomuga man is the oldest known case of deliberate skull reshaping in history, it is a mystery whether other known instances of deliberate skull reshaping spread from this group, or whether they rose independently of one another, Wang said.

Oddly shaped, intentionally modified skulls have been discovered in various regions across the globe. While assertions from the 1980s contended that two Neandertal skulls, estimated to be around 45,000 years old, had been reshaped during infancy, numerous scholars have since refuted these claims.

The most ancient skulls that exhibit widely acknowledged indications of cranial modification date back to approximately 13,000 to 10,000 years ago in the western areas of Asia, southeastern Australia, and most recently, East Asia. On the other hand, this practice began over 8,000 years ago in the Americas.

Despite the popular belief that the elongated skull, thought to be around 12,000 years old, was intentionally altered, some experts disagree. Although the skull does display some elongation, it is not significant enough to suggest intentional deformation. In fact, evidence only supports forced skull modification in those dating back 6,000 years ago.

The peculiar case of “Paracas skulls” is another discovery of elongated skulls, however, it is different from the rest of skull elongation cases.

The size of the cranium of Paracas skulls is significantly larger, by 25% and 60% heavier than typical human skulls, which indicates that they were not artificially altered through head flattening. Moreover, these skulls possess a single parietal plate, instead of two. Due to the absence of any cranial deformation, the elongation of these skulls remains unexplained and has been so for many years.

The significance of the discovery in Houtaomuga remains noteworthy, irrespective of the ongoing controversy. It highlights the existence of deliberate skull alterations during the Neolithic period in the region. Additionally, the findings offer insights into the community’s culture and convictions during the latter phase of the Stone Age.

A 42,000-year-old pendant found in northern Mongolia may be the earliest known phallic art

An international team of researchers has found a pendant in northern Mongolia that may be the earliest known example of a carved phallus. This pendant suggests that for at least 42,000 years, our species has been artistically depicting the penis.

The stone was found at a dig site in northern Mongolia’s Khangai Mountains. The piece of ornament interpreted as a phallus-like representation is about 4.3 centimeters long and made by humans.

According to researchers behind a study of the pendant, published this week in Nature Scientific Reports, the carved graphite is the “earliest-known sexed anthropomorphic representation.”

The dating of the material shows it was from approximately 42,400 to 41,900 years ago, putting its creation in the Upper Paleolithic.

Three-dimensional phallic pendants are unknown in the Paleolithic record. It attests that hunter-gatherer communities used sex anatomical attributes as symbols at a very early stage of their dispersal in the region.

The pendant was produced during a period that overlaps with age estimates for early introgression events between Homo sapiens and Denisovans, and in a region where such encounters are plausible,” the science team wrote in the study published in Nature.

The black pendant has several grooves, but two of them caught the attention of scientists.

Researchers think these grooves were carved into the stone to make it resemble a human penis. But not everyone is convinced that the Mongolian pendant represents a phallus.

Solange Rigaud, an archaeologist at the University of Bordeaux and the study’s lead author, thinks the strongest argument for the pendant as a phallic representation comes from the features its maker focused on.

“Our argument is that when you want to represent something abstractly, you will choose very specific features that really characterize what you want to represent,” she says. For example, the carver appears to have taken care to define the urethral opening, she notes, and to distinguish the glans from the shaft.

A combination of microscopy and other surface analyses show that stone tools were likely used to carve out the grooves for both the urethra and the glans.

The pendant was also discovered to be smoother on the back than the front; a string was likely fastened around the glans, suggesting the ornament may have been worn around the neck.

The amount of wear on the surface suggests it was likely handed down across multiple generations.

Graphite wasn’t widely available near Tolbor, suggesting the pendant may have come from elsewhere, perhaps through trade.

The study was published in the journal Nature.

Explore 1,400-year-old ruins, submerged in Eastern China – Atlantis of China

Deep in Qiandao Lake, between China’s Five Lion Mountains, lie the mysterious ruins of two ancient cities, dating back to the Han and Tang dynasties. Known as the ‘Atlantis of China,’ the place is largely preserved intact even after centuries.

Qiandao Lake, also known as Thousand Island Lake, is a sprawling body of fresh water, covering 573 sq. km. The name comes from the fact that there are over a thousand islands in the lake.

The underwater city of Shicheng is a magnificent, mysterious time capsule of Imperial China. Shi Cheng – which means Lion City in Mandarin – was purposely flooded in 1959 to make way for the Xin’an Dam and its adjoining hydroelectric station.

This was a massive government project that forced 300,000 people to relocate their homes as more than 1,300 villages and tens of thousands of acres of farmland were flooded and submerged.

In addition to the direct impact on the local residents, two ancient cities located in the valley at the foot of the mountain were also submerged into the lake.

The city was “rediscovered” in 2001 when the Chinese government organized an expedition to see what might remain of the lost metropolis.

The early divers found Shi Cheng to be largely intact, with many of the structures, carvings, guardian lions, and arches still preserved. There have been efforts to map & document Shi Cheng by divers and researchers, as well as looking into protective measures to prevent damage to it.

In January 2011, the cities were declared historical relics under the protection of the Zhejiang Province.

Shi Cheng was once the center of politics and economics in the eastern providence of Zhejiang. It is believed the city of Shi Cheng was built during the Tang Dynasty in 621 AD. Based on records of the region’s history, it is thought to be quite large, possibly over 60 football fields, and featuring 265 arches throughout the city. 

Shi Cheng was also unusual in that it was constructed with 5 city gates and towers, as opposed to the norm of 4.  The city of He Cheng is believed to date back even further to the Han Dong dynasty (25 -200 AD).

The city achieved the zenith of its glory from 1368-1644 when the Ming dynasty ruled China. The existing walls of the city date to the sixteenth century.

In 2014, after the authorities realized that the city was intact below water, they allowed tourists to visit the area by diving. Visitors can relish the 1,400-year-old architectural wonders at the diving site. However, only expert divers are allowed.

Today, advanced divers can get up close to the ruins with dive operators such as Big Blue and Zi Ao Diving Club, which run regular dives between April and November. Since the ruins have yet to be fully mapped, the dive is still considered “Exploratory”.