Paleontologist Identifies New Species of Predatory Dinosaur

Paleontologists have described a new genus and species of carcharodontosaurian theropod dinosaur based on descriptions of now-destroyed specimens from Egypt’s Bahariya Formation.



rebuilding the life of Tameriraptor Markography. Image credit: Joschua Knüppe.

The newly identified dinosaur lived in what is now Africa during the Cretaceous period about 95 million years ago.

dubbing Tameriraptor Markographyan ancient species, is a member of a group of carnivorous theropod dinosaurs. Carcharodontosauridae.

The fossilized remains of this dinosaur were discovered in 1914 about 2 km (1.2 miles) from Ein Gedid, at the western foot of Gebel Hara in the Bahariya Formation.

This fossil was first described as a carcharodontosaur species by German paleontologist Ernst Stromer von Reichenbach in 1931. Carcharodontosaurus sahalix.

“In 1931, Stromer described the first partial skeleton of a carcharodontosaur from the Cretaceous period of North Africa,” said first author Dr. Maximilian Kellermann and Ludwig Maximilian of the Bavarian State Institute of Paleontology and Geology. said a university colleague.

“The specimens were excavated from the Bahariya Formation, a locality in the northern Bahariya Oasis of Egypt, and include skull fragments (maxilla, nasal bone, part of the brain shell), vertebrae, part of the pubic bone and ischium, femur, and fibula. It consisted of

“Recognizing the common features of the related teeth, Stromer referred to the specimen as: Dryptosaurus sahalixproposed a new genus name, but carcharodontosaurusfor this kind of case. ”

According to the authors, the original specimen was destroyed during World War II.

The only extant data consist of Stromer's description and depiction of the specimen and an endocast of the brain box, currently stored in Berlin.

“What we saw in the historic footage surprised all of us,” Dr. Kellerman said.

“The Egyptian dinosaur fossils depicted there are very different from more recent dinosaur fossils.” carcharodontosaurus Found in Morocco. ”

“Thus, Stromer's original classification was inaccurate. We have now identified and named a completely different and previously unknown species of predatory dinosaur. Tameriraptor Markography

Tameriraptor Markography It was approximately 10 meters (33 feet) long and had symmetrical teeth and a prominent nasal horn.

“We found that this dinosaur was closely related to the carcharodontosaurs of North Africa and South America, and to the metricanthosaurids, a group of predatory dinosaurs in Asia,” said the study's senior author. said one Dr. Oliver Rauchat.

“The dinosaur fauna of North Africa was probably much more diverse than we previously thought.”

“This study shows that there is value for paleontologists to dig not only in the ground but also in old archives.”

“However, a more comprehensive assessment of the Cretaceous predatory dinosaur fauna of Bahariya Oasis will require the recovery of more fossils from the site.”

of the team work Published in a magazine PLoS ONE.

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M. Kellerman others. 2025. Reassessment of its implications for the phylogeny of Bahariya Formation carcharodontosaurids (dinosaurs: theropods) and allosaurids. PLoS ONE 20 (1): e0311096;doi: 10.1371/journal.pone.0311096

Source: www.sci.news

The Kakapo Parrot: A Species with Ancient Origins in New Zealand, According to Paleontologist

Kakapo (Strigops habroptilus) is a species of flightless parrot endemic to New Zealand.

Kakapo (Strigops habroptilusImage courtesy of Jake Osborne.

“Our research has prompted us to rethink our native fauna,” said Dr Paul Schofield, from Canterbury Museum.

“Many species that were thought to be iconic natives of New Zealand – the classic example being the takahe – are now known to be relatively recent species that arrived from Australia only a few million years ago.”

In their study, Dr Schofield and his colleagues focused on the so-called St Bathans Fauna, a collection of more than 9,000 specimens from 33 palaeontological sites and individual deposits near the village of St Bathans in Central Otago, New Zealand’s South Island.

These sites, once the bed of a large prehistoric lake, provide the only significant insight into non-marine life in New Zealand from 20 million years ago (the Early Miocene).

Rare creatures in the St Bathans fauna include: Hercules’ Unexpected a giant parrot that scientists have named Squawkzilla, two mysterious mammals, flamingos, a three-metre crocodile, a giant horned turtle, and a giant bat.

“Twenty-three years of excavations at St Bathans have changed our ideas about the age of New Zealand’s fauna and the importance of some animals over others,” Dr Schofield said.

“For example, we previously thought that birds like kiwis and moas were the oldest representatives of New Zealand’s fauna.”

“We are now beginning to realise that the kakapo, New Zealand’s little wrens and bats, and even the odd freshwater limpet are the true ancient inhabitants of New Zealand.”

The authors conclude that this rare group of animals became extinct as a result of a dramatic drop in temperature over the past five million years or so.

“The work at St Bathans has transformed our understanding of the non-marine vertebrate fauna of New Zealand during the Early Miocene, around 20 million years ago,” Dr Trevor Worthy, from Flinders University, said.

“It’s incredibly exciting to be part of a project that continues to discover brand new things about what animals lived in New Zealand’s lakes, rivers, and surrounding forests at such a pivotal time in history.”

“Every year we find new specimens – amazing discoveries of new species that we never could have imagined when we first started working there.”

“The animals that lived in New Zealand 20 million years ago were very different to those found today,” said Dr Vanessa De Pietri, from the University of Canterbury.

“For example, there was another giant eagle that was not related to Haast’s eagle (Hieraethus Moulay)”

“We had a lot of pretty unusual songbirds, we had alligators and maybe even some small mammals that we call waddling mice.”

“Research is still ongoing to understand what it was exactly.”

This study paper Published in the journal Geobios.

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Trevor H. Worthy othersSummary of the Early Miocene St Bathans fauna of New Zealand. GeobiosPublished online August 6, 2024; doi: 10.1016/j.geobios.2024.03.002

This article has been adapted from an original release by Canterbury Museum.

Source: www.sci.news

Paleontologist refutes theory that Protoceratops fossils inspired griffin myth

One of the most widely publicized examples of fossil legends is the Central Asian ceratopsid and Protoceratops And that GriffinA mythical creature that combines the characteristics of a lion and a bird and protects gold. This earth myth was first proposed in the 1990s. Protoceratops Fossils were transported west along trade routes from the gold mines of Asia, spreading griffin lore among the ancient Greeks. ProtoceratopsBut Griffin Link finds that unconvincing.

of Protoceratops-The geomyth of the griffin. The idea that horned dinosaur fossils in Mongolia inspired the myth of the griffin, an ancient chimera of bird and lion according to conventional archaeologists, is one of the most popular and publicized examples of fossil folklore in modern times. The idea was first proposed in the early 1990s but has received little academic scrutiny. Image credit: Whitton others., doi: 10.1177/03080188241255543.

The specific link between dinosaur fossils and the griffin myth was proposed more than 30 years ago in a series of papers and books written by folklorist Adrienne Mayolle.

these are, 1989 Cryptozoology paper Qualified'Palaeocryptozoology: A call for collaboration between classicists and cryptozoologists',and The groundbreaking book from 2000,The first fossil hunter.

This is because early ceratopsians in Mongolia and China ProtoceratopsIt was discovered by ancient nomads searching for gold in Central Asia.

story Protoceratops The bones then traveled along trade routes to the Southwest, influencing griffin stories and art.

Griffins are one of the oldest mythological creatures, first appearing in Egyptian and Middle Eastern art in the 4th millennium BC and becoming popular in Ancient Greece in the 8th century BC.

Protoceratops This is a 2-metre-long dinosaur that lived in Mongolia and northern China during the Cretaceous Period, 75 to 71 million years ago.

Like Griffin, Protoceratops It stood on all fours, had a beak, and had frill-like protrusions on its skull which some have argued could be interpreted as wings.

In the first detailed assessment of the claims, Mark Whitton of the University of Portsmouth and his colleagues looked at the historical fossil record, Protoceratops Fossils and classical sources related to griffins ProtoceratopsTo fully understand the non-traditional, fossil-based views of the griffin's origins, we consulted historians and archaeologists. Ultimately, we found that none of the arguments stood up to scrutiny.

idea Protoceratops For example, it is unlikely to be discovered by nomads searching for gold. Protoceratops Fossils have been found hundreds of kilometers away from ancient gold mines.

A century has passed since then. Protoceratops Although it was found, there have been no reports of gold buried alongside it.

Also, nomads Protoceratops Even if gold miners search for the area where the fossils were found, they will not find the skeleton.

“The hypothesis is that the dinosaur skeletons were found semi-exposed and left as if they were the remains of a recently dead animal,” Dr Whitton said.

“But generally speaking, only small parts of eroded dinosaur skeletons are visible to the naked eye and would likely go unnoticed by anyone but the most eagle-eyed fossil hunters.”

“It is almost certain that ancient peoples roaming Mongolia would have encountered it. Protoceratops. “

“We need to look further into these animals to develop a mythology, which will require us to extract fossils from the surrounding rocks.”

“Even with modern tools, adhesives, protective packaging and preparation techniques, it's no easy task.”

“probably Protoceratops The ruins have generally gone unnoticed – even though the gold miners were there and saw them.”

Similarly, the geographic spread of griffin art throughout history is not consistent with a scenario in which griffin lore originated from fossils in Central Asia and then spread westward. Protoceratops Fossils in ancient literature.

Protoceratops Its only resemblance to a griffin is that it is a quadruped with a beak. Griffin art lacks details that would suggest it was based on fossils; instead, it is clear that many griffins were modeled after features of modern cats and birds.

“Everything about the griffin's origins is consistent with the traditional interpretation that it is a mythical beast, and its appearance is perfectly explained by being a chimera between a big cat and a bird of prey,” Dr Whitton said.

“It evokes the role of dinosaurs in griffin lore, particularly species from faraway lands. Protoceratopsnot only introduces unnecessary complexity and contradictions into its origins, but also relies on interpretations and proposals that do not stand up to scrutiny.”

“It's important to distinguish between fact-based fossil folklore – links between fossils and myths that are attested to by archaeological finds or compelling references in literature and artwork – and connections that are speculative and based on intuition,” said Dr Richard Hing from the University of Portsmouth.

Team paper Published in this week's journal Interdisciplinary Science Review.

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Mark P. Whitton othersThe horned dinosaur Protoceratops Inspire Griffin? Interdisciplinary Science ReviewPublished online June 20, 2024; doi: 10.1177/03080188241255543

Source: www.sci.news

Could dinosaurs make a comeback in the future? Insights from a paleontologist

Dinosaurs, in the form of birds, continue to exist today. However, traditional dinosaurs like tyrannosaurus, triceratops, and stegosaurus, are unlikely to evolve again if the climate and temperatures return to Cretaceous conditions.

While pondering this idea is entertaining, it is impossible to accurately predict future evolutionary developments. Evolution is largely influenced by chance and natural selection, which occurs in response to immediate needs rather than long-term planning.

The late paleontologist Stephen Jay Gould once contemplated rewinding the tape of life to a past era and playing it again. He theorized that each replay would result in a different world, shaped by random quirks and unpredictable paths.

One thing that becomes clear with fossil record analysis is that once a species goes extinct, it is gone forever. Trilobites, for example, have not reappeared despite similarities in today’s climate to theirs in the past.

Evolution through convergence is a powerful force, leading different species to develop similar traits when faced with similar environmental challenges. Therefore, if Earth were to undergo a Cretaceous-like climate shift, it is possible that new large reptiles may evolve, but not necessarily tyrannosaurus and triceratops.

In response to a reader’s question about the possibility of dinosaurs evolving again under different Earth conditions, this article explores the unpredictable nature of evolution and the potential for new species to emerge under changing circumstances.

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Source: www.sciencefocus.com