Strange Dinosaurs Like Loris with Two Giant Fingers
Two-Fingered Dinosaur Species discovered in Mongolia‘s Gobi Desert
Table of Contents
- Two-Fingered Dinosaur Species discovered in Mongolia’s Gobi Desert
- The Two-Fingered Dinosaur: Unraveling the Mystery of *Duonychus tsogtbaatari*
- Frequently Asked Questions about *Duonychus tsogtbaatari*
- What is *duonychus tsogtbaatari*?
- Where was *Duonychus tsogtbaatari* discovered?
- Why is the discovery of *Duonychus tsogtbaatari* significant?
- What does “*Duonychus*” mean in the dinosaur’s name?
- Who was Khishigjav Tsogtbaatar?
- What is keratin, and why is its preservation significant?
- How big was *Duonychus tsogtbaatari*?
- What did *Duonychus tsogtbaatari* eat?
- How might *duonychus* have used its claws?
- How does *Duonychus tsogtbaatari* fit into the broader picture of theropod evolution?
- Why is finger reduction significant in this dinosaur?
- What other dinosaurs do we know that changed their hand structures?
- What is the role of the arms and hands of Theropods in diverse roles?
- Frequently Asked Questions about *Duonychus tsogtbaatari*
ULAANBAATAR, Mongolia – Paleontologists have identified a new species of therizinosaur, a bizarre group of dinosaurs known for their evolutionary shift from meat-eaters to plant-eaters, and characterized by unique features such as bird-like fur, small heads, and notably, large, curved claws. This newly discovered dinosaur, named duonychus tsogtbaatari, possesses an even more unusual trait: it had only two fingers on each hand, unlike it’s relatives, which typically had three.
The findings, published in the journal Iscience, detail the discovery made in the Gobi Desert of Mongolia. The fossil,estimated to be more than 90 million years old,was initially unearthed in 2012 by a team from the Mongolian academy of Sciences. The remains included spine, ribs, pelvis, shoulders, and two complete hands.However, it took several years to fully recognize the fossil as belonging to a previously unknown species.
Unveiling Duonychus tsogtbaatari
The dinosaur’s name, Duonychus tsogtbaatari, is derived from the Greek words “duo” (two) and “onychos” (claws), reflecting its distinctive two-clawed hands.the species name pays tribute to Mongolian paleontologist Khishigjav Tsogtbaatar.
Yoshitsugu Kobayashi, a paleontologist from Hokkaido University and lead author of the study, expressed his initial surprise upon examining the fossils in 2013. “This dinosaur only has two fingers, and one of them still keeps a layer of keratin. I promptly thought, ‘Geez!'” Kobayashi said.
Keratin, the same material that forms human nails, was preserved on one of the claws.This keratin layer suggests that the claw was longer and more curved than the underlying bone indicates. Researchers believe Duonychus, which weighed an estimated 573 pounds (260 kg), used its claws to grip branches and plants, aiding its herbivorous diet.
“This is the first time we found a layer of keratin that is still awake from this dinosaurs theropoda,” Kobayashi said.
Echoes of the Slow Loris?
Intriguingly, the feeding habits of Duonychus appear to share similarities with those of the modern-day slow loris. With flexible wrists and strong, non-retractable claws, the dinosaur likely used its claws to pull leaves and branches toward its mouth, a technique mirroring the slow loris’s feeding behavior.
After consuming plant matter, the food would enter Duonychus’s large, rounded stomach. This stomach structure, supported by wide hips and ribs, resembles that of giant sloths from prehistoric times.
The Mystery of the Missing Finger
prior to this discovery, all known therizinosaurs possessed three fingers. the finding of Duonychus demonstrates that finger count could vary within the same dinosaur group. Finger reduction is not uncommon in the dinosaur world; for example,tyrannosaurus rex had only two fingers,while Limusaurus had four,with two being substantially smaller and non-functional.
“Initially I did not expect to find therizinosaur with only two fingers,” said Stephan Lautenschlager, paleontologist from Birmingham University who was not involved in this study.
The reduction in finger number may represent an adaptation to specific functions, such as gripping, clawing, or even defense. “Theopoda arms and hands develop in various ways for different purposes,” Kobayashi said. He noted that the Alvarezsaurus, as an example, had a large claw potentially used for digging and opening insect nests.
Theropod Evolution: A Story in the Hands
Kobayashi explained that bipedalism, or walking on two legs, allowed for the diversification of theropod hands and arms. In Tyrannosaurus rex, the powerful jaw replaced the hand’s role in hunting, leading to smaller, simpler hands.
Though, in other theropods, hands evolved for specialized purposes. In the case of Duonychus, evolution appears to have favored hands adapted for reaching and manipulating plants.
“Their arms developed in various directions with very diverse functions,” Kobayashi said.
The Two-Fingered Dinosaur: Unraveling the Mystery of *Duonychus tsogtbaatari*
The Gobi Desert of Mongolia has once again yielded a remarkable discovery, rewriting our understanding of dinosaur evolution. Paleontologists have unearthed a new species of therizinosaur, a group known for their transition from meat-eaters to exclusively plant-based diets. This dinosaur, christened *Duonychus tsogtbaatari*, has stunned the scientific community with a unique feature: it possessed only two fingers on each hand, unlike its close relatives who typically sported three.
Frequently Asked Questions about *Duonychus tsogtbaatari*
What is *duonychus tsogtbaatari*?
*Duonychus tsogtbaatari* is a newly discovered species of therizinosaur, a type of dinosaur that evolved from meat-eating theropods to become herbivores.Found in the Gobi Desert, this dinosaur is notable for its two-fingered hands, a notable departure from the typical three-fingered therizinosaurs.
Where was *Duonychus tsogtbaatari* discovered?
The fossils of *Duonychus tsogtbaatari* were discovered in the Gobi Desert of mongolia.
Why is the discovery of *Duonychus tsogtbaatari* significant?
This discovery is significant in several ways:
- Unique finger Count: Its the first therizinosaur known to have only two fingers, challenging previous assumptions about the group’s anatomy.
- Evolutionary Insights: It sheds light on the diversification of theropod hands and how they adapted for different purposes,such as grasping plants.
- Preservation of Keratin: The discovery includes preserved keratin on one of the claws, providing a rare glimpse into the physical appearance and functionality of the claw.
What does “*Duonychus*” mean in the dinosaur’s name?
The name “*Duonychus*” comes from the Greek words “duo” (two) and “onychos” (claws), reflecting its distinctive two-clawed hands.
Who was Khishigjav Tsogtbaatar?
Khishigjav Tsogtbaatar was a Mongolian paleontologist. *Duonychus tsogtbaatari* was named in his honor.
What is keratin, and why is its preservation significant?
Keratin is the same protein that forms human nails and is also found in the claws of animals. The keratin layer preserved on one of *Duonychus’s* claws suggests that the claw may have been longer and more curved than the underlying bone indicates. It helps researchers estimate the shape and function of the claw more accurately.
How big was *Duonychus tsogtbaatari*?
Researchers estimate that *Duonychus tsogtbaatari* weighed approximately 573 pounds (260 kg).
What did *Duonychus tsogtbaatari* eat?
Based on its physical characteristics, including its large claws and rounded stomach structure, it’s highly likely that *Duonychus tsogtbaatari* was a herbivore, feeding on plants.
How might *duonychus* have used its claws?
Its strong, non-retractable claws were likely used for gripping branches and plants. This feeding method might have mirrored the modern-day slow loris, which uses a similar technique to pull leaves and branches towards its mouth.
How does *Duonychus tsogtbaatari* fit into the broader picture of theropod evolution?
The discovery of *Duonychus* provides valuable insights into theropod evolution and highlights the diversification of theropod hands.
Specifically:
- Bipedalism: Bipedalism, or walking on two legs, played a pivotal role in enabling the diversification of theropod hands.
- functional Adaptations: *Duonychus* likely evolved hand adaptations for reaching and manipulating plants emphasizing the role of natural selection in shaping the forms and functions of the hands.
- Varied adaptations: This reveals that theropod arms and hands evolved unique adaptation for different purposes.
Why is finger reduction significant in this dinosaur?
The reduction of finger number in *Duonychus* is significant as it indicates an adaptation to specific functions. Such as gripping,clawing. This is supported by comparison to species like *Tyrannosaurus Rex* (with two fingers) and *Limusaurus* (with four fingers).
What other dinosaurs do we know that changed their hand structures?
Several dinosaurs, besides *Duonychus tsogtbaatari*, have substantially changed their hand structures.
An example is *Tyrannosaurus rex*, which had its hands reduced to two fingers. It shows how the powerful jaws replaced the role of the hands.
Also, *Alvarezsaurus* showcases large claws possibly used for digging and opening insect nests.
These examples demonstrate the diversity of hand-based adaptations within the dinosaur world.
What is the role of the arms and hands of Theropods in diverse roles?
Theopoda arms and hands develop in various ways for different purposes. As *Alvarezsaurus*,had a large claw potentially used for digging and opening insect nests.
Source: Based on information from the journal *Iscience* and original research cited in the provided article.