* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, August 24, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    How to watch ‘F1: The Movie’ on Prime Video – About Amazon

    Experience the Thrill: How to Stream ‘F1: The Movie’ on Prime Video

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    What Are Our Predictions for Taylor Swift’s ‘Life of a Showgirl’ Based on What She’s Told Us So Far? – yahoo.com

    Uncover the Hidden Surprises in Taylor Swift’s ‘Life of a Showgirl’ – Can You Decode Her Clues?

    Bama Dining Serving Up New Food, Entertainment – UA News Center

    Bama Dining Launches Thrilling New Food and Entertainment Experiences

    The latest on Williams-Brice Stadium renovations, entertainment district – On3

    Discover the Thrilling New Upgrades Coming to Williams-Brice Stadium and Its Vibrant Entertainment District!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Why Technology Will Never Take Over Completely – Patheos

    Why Technology Will Never Completely Control Our Lives

    Alcorn State awarded grant to boost STEM with VR technology – WJTV

    Alcorn State Secures Grant to Transform STEM Education Through Cutting-Edge VR Technology

    Hyundai: The Only Way To Beat China Is To Embrace Technology – InsideEVs

    Hyundai’s Bold Strategy to Outpace China with Cutting-Edge Technology

    Teaching older adults how to use technology – WWNY

    Empowering Older Adults to Master Technology with Confidence

    Denver man receives pacemaker using new technology – CBS News

    Denver Man’s Life Transformed by Revolutionary Pacemaker Technology

    Morgan County Rescue Squad is using new technology to recover people missing in the water faster – WAFF

    Morgan County Rescue Squad is using new technology to recover people missing in the water faster – WAFF

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    How to watch ‘F1: The Movie’ on Prime Video – About Amazon

    Experience the Thrill: How to Stream ‘F1: The Movie’ on Prime Video

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    What Are Our Predictions for Taylor Swift’s ‘Life of a Showgirl’ Based on What She’s Told Us So Far? – yahoo.com

    Uncover the Hidden Surprises in Taylor Swift’s ‘Life of a Showgirl’ – Can You Decode Her Clues?

    Bama Dining Serving Up New Food, Entertainment – UA News Center

    Bama Dining Launches Thrilling New Food and Entertainment Experiences

    The latest on Williams-Brice Stadium renovations, entertainment district – On3

    Discover the Thrilling New Upgrades Coming to Williams-Brice Stadium and Its Vibrant Entertainment District!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Why Technology Will Never Take Over Completely – Patheos

    Why Technology Will Never Completely Control Our Lives

    Alcorn State awarded grant to boost STEM with VR technology – WJTV

    Alcorn State Secures Grant to Transform STEM Education Through Cutting-Edge VR Technology

    Hyundai: The Only Way To Beat China Is To Embrace Technology – InsideEVs

    Hyundai’s Bold Strategy to Outpace China with Cutting-Edge Technology

    Teaching older adults how to use technology – WWNY

    Empowering Older Adults to Master Technology with Confidence

    Denver man receives pacemaker using new technology – CBS News

    Denver Man’s Life Transformed by Revolutionary Pacemaker Technology

    Morgan County Rescue Squad is using new technology to recover people missing in the water faster – WAFF

    Morgan County Rescue Squad is using new technology to recover people missing in the water faster – WAFF

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

New Jurassic Fossils Document Evolutionary Changes of Jaw Joint to Mammalian Middle Ear

April 4, 2024
in Science
New Jurassic Fossils Document Evolutionary Changes of Jaw Joint to Mammalian Middle Ear
Share on FacebookShare on Twitter

Two new Jurassic species — the morganucodontan-like Dianoconodon youngi and the pseudotribosphenic shuotheriid Feredocodon chowi — offer key information about the evolutionary shift from the jaw joint bones to those of the middle ear in early mammals.

Dianoconodon youngi. Image credit: Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences.

Dianoconodon youngi. Image credit: Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences.

Both Dianoconodon youngi and Feredocodon chowi lived in China over 150 million years ago (Jurassic period).

The type specimens of Feredocodon chowi were found at the locality of Dauhugou in the Ningchen Basin in Inner Mongolia.

The Dianoconodon youngi fossils were discovered at the Heiguopeng locality of the Lufeng Formation in Yunnan province.

The specimens show noticeable physical characteristics, suggesting a gradual change in the jaw joint’s function towards specializing in hearing.

“The significance of this discovery is that both species have mandibular middle ears, and the morganucodontan-like species have new postdentary bone structures,” said Professor Patricia Vickers-Rich, a researcher at Monash University and Museums Victoria.

“Dianoconodon youngi is losing the load-bearing function of its articular-quadrate joint, whereas Feredocodon chowi is showing characteristics suited for purely auditory function.”

The fossils offer important evidence of the transitional phases in the evolution of the mammalian middle ear.

A progressive decline in the load-bearing capacity of the main jaw joint is leading to the separation of postdentary bones from the dentary.

The findings revise prior ideas of the original state of the mammalian middle ear.

They enhance the understanding of mammaliaform development by resolving questions related to middle ear evolution in close mammal relatives.

“Studying transitional stages in evolutionary history is crucial,” Professor Vickers-Rich said.

“The fossils show incremental modifications that demonstrate the complex process of adaptation that resulted in the advanced hearing systems found in modern animals.”

The results also provide insight into how tissues such as the ossified Meckel’s cartilage helped in the shift from jaw movement to hearing ability.

Paleontologists can track the steady evolution of the middle ear ossicles by studying traits like the medial displacement of the quadrate in reference to the articular.

“Newly recognized well-preserved fossils from the Jurassic of China significantly clarify how one of the most remarkable transitions in the history of the vertebrates occurred,” said Dr. Thomas Rich, also from Monash University and Museums Victoria.

“Namely, the transformation of many of the multiple bones in the lower jaws of reptiles became tiny bones in the middle ears of mammals.”

The study appears today in the journal Nature.

_____

F. Mao et al. Fossils document evolutionary changes of jaw joint to mammalian middle ear. Nature, published online April 3, 2024; doi: 10.1038/s41586-024-07235-0

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Breaking Science News – https://www.sci.news/paleontology/dianoconodon-youngi-12822.html

Tags: ‘Jurassicfossilsscience
Previous Post

Webb Observes Hidden Depths of Messier 82

Next Post

Email Marketing App Integration: Simplify and Supercharge Your Strategy

Stick to politics? How Donald Trump is using sports to advance his agenda – The Athletic – The New York Times

How Donald Trump Is Using Sports to Advance His Political Agenda

August 24, 2025
A Home at the End of the World – atmos.earth

Discover Your Sanctuary: A Home at the End of the World

August 23, 2025
CWI officially opens new Health and Science Building – Idaho Business Review

CWI Unveils Cutting-Edge Health and Science Facility Transforming Education

August 23, 2025
Scientists found the missing nutrients bees need — Colonies grew 15-fold – ScienceDaily

Breakthrough Discovery: Key Nutrients That Supercharge Bee Colonies by 15 Times

August 23, 2025
If boomers did these 7 things today, they’d be called “toxic” by millennials – VegOut

If boomers did these 7 things today, they’d be called “toxic” by millennials – VegOut

August 23, 2025
Why Technology Will Never Take Over Completely – Patheos

Why Technology Will Never Completely Control Our Lives

August 23, 2025

Paulina Ruiz Clinches Gold for Colombia in a Thrilling Triumph

August 23, 2025
Putin wants to attend 2026 FIFA World Cup in the U.S. “very badly,” Trump says – Axios

Putin Eager to Attend 2026 FIFA World Cup in the U.S., Says Trump

August 23, 2025
How the semiconductor boom and ASU are transforming Arizona’s economy – ASU News

How the semiconductor boom and ASU are transforming Arizona’s economy – ASU News

August 23, 2025
From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

August 23, 2025

Categories

Archives

August 2025
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jul    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (786)
  • Economy (806)
  • Entertainment (21,685)
  • General (16,631)
  • Health (9,846)
  • Lifestyle (819)
  • News (22,149)
  • People (808)
  • Politics (816)
  • Science (16,019)
  • Sports (21,305)
  • Technology (15,787)
  • World (787)

Recent News

Stick to politics? How Donald Trump is using sports to advance his agenda – The Athletic – The New York Times

How Donald Trump Is Using Sports to Advance His Political Agenda

August 24, 2025
A Home at the End of the World – atmos.earth

Discover Your Sanctuary: A Home at the End of the World

August 23, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version