* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, July 9, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment’s Samantha Brady on the Power of the RSN’s Direct-to-Consumer Streaming Service Monumental+ – Sports Video Group

    Samantha Brady Reveals How Monumental+ is Transforming Sports Streaming with Direct-to-Consumer Access

    Moses Singer Welcomes Entertainment and Intellectual Property Partner Frederick Bimbler – Yahoo Finance

    Moses Singer Expands Team with New Entertainment and Intellectual Property Partner Frederick Bimbler

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Magicians and Battlebots light up Las Vegas entertainment scene – KSNV

    Magicians and Battlebots Take Las Vegas Entertainment by Storm

    Max-Matching Entertainments & Longhua District form partnership for new entertainment complex – Blooloop

    Max-Matching Entertainments and Longhua District Unite to Launch Thrilling New Entertainment Complex

  • 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
    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    Technology And Construction Names Join Top Stock Lists: Check Out Additions To IBD 50, Big Cap 20 And More – Investor’s Business Daily

    Technology and Construction Leaders Surge Into Top Stock Rankings: See the Latest Additions to IBD 50, Big Cap 20, and More

    Column: Teach kupuna new technology skills – Honolulu Star-Advertiser

    Empowering Kupuna: Unlocking New Technology Skills for a Connected Future

    EIFO invests $5 million in D3, the Ukraine-focused defence technology venture fund – sUAS News

    EIFO Pledges $5 Million to Supercharge Ukraine-Focused Defense Technology Fund

    New Technology for Water Efficiency and Working with Mexico on Screwworm – AG INFORMATION NETWORK OF THE WEST

    Revolutionary Water Efficiency Technology and Cross-Border Collaboration to Defeat Screwworm

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment’s Samantha Brady on the Power of the RSN’s Direct-to-Consumer Streaming Service Monumental+ – Sports Video Group

    Samantha Brady Reveals How Monumental+ is Transforming Sports Streaming with Direct-to-Consumer Access

    Moses Singer Welcomes Entertainment and Intellectual Property Partner Frederick Bimbler – Yahoo Finance

    Moses Singer Expands Team with New Entertainment and Intellectual Property Partner Frederick Bimbler

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Magicians and Battlebots light up Las Vegas entertainment scene – KSNV

    Magicians and Battlebots Take Las Vegas Entertainment by Storm

    Max-Matching Entertainments & Longhua District form partnership for new entertainment complex – Blooloop

    Max-Matching Entertainments and Longhua District Unite to Launch Thrilling New Entertainment Complex

  • 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
    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    Technology And Construction Names Join Top Stock Lists: Check Out Additions To IBD 50, Big Cap 20 And More – Investor’s Business Daily

    Technology and Construction Leaders Surge Into Top Stock Rankings: See the Latest Additions to IBD 50, Big Cap 20, and More

    Column: Teach kupuna new technology skills – Honolulu Star-Advertiser

    Empowering Kupuna: Unlocking New Technology Skills for a Connected Future

    EIFO invests $5 million in D3, the Ukraine-focused defence technology venture fund – sUAS News

    EIFO Pledges $5 Million to Supercharge Ukraine-Focused Defense Technology Fund

    New Technology for Water Efficiency and Working with Mexico on Screwworm – AG INFORMATION NETWORK OF THE WEST

    Revolutionary Water Efficiency Technology and Cross-Border Collaboration to Defeat Screwworm

    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

Two New Species of Carboniferous Ctenacanth Sharks Identified in the United States

February 7, 2024
in Science
Two New Species of Carboniferous Ctenacanth Sharks Identified in the United States
Share on FacebookShare on Twitter

A focused search for ancient marine vertebrates during a paleontological resource inventory of Mammoth Cave National Park has yielded a wealth of new fossil data. To date, paleontologists have identified marine vertebrate fossils from four primary horizons at the park, two of which are the first records of marine vertebrate fossils occurring in those horizons. Mammoth Cave sites have produced more than 70 species of ancient fish, about 90% representing cartilaginous fishes (sharks and kin), including two new species: Troglocladodus trimblei and Glikmanius careforum.

A reconstruction of the new ctenacanth sharks from Mammoth Cave National Park and northern Alabama: Glikmanius careforum is seen swimming in the foreground with two Troglocladodus trimblei swimming above. Image credit: Benji Paynose.

A reconstruction of the new ctenacanth sharks from Mammoth Cave National Park and northern Alabama: Glikmanius careforum is seen swimming in the foreground with two Troglocladodus trimblei swimming above. Image credit: Benji Paynose.

Mammoth Cave National Park, in central Kentucky, is home to the longest cave system in the world.

To date, more than 685 km (426 miles) of passageways have been mapped within 214 km2 that form the park. In addition, there are over 500 smaller caves within the park boundary.

These cave passages were formed through dissolution by underground rivers, streams, and other drainages that cut through a series of limestones, capped by a resistant sandstone, that date to 340 to 325 million years ago.

These passages opened a unique view of these limestones, which are time capsules holding a wealth of information on the ancient marine environments of their deposition.

Invertebrate fossils from these beds such as horn corals, fan-like bryozoans, brachiopods, gastropods, shelled cephalopods, and a diverse array of echinoderms have been found throughout the various formations that form the cave.

“Every new discovery at Mammoth Cave is possible due to collaborations,” said Superintendent Barclay Trimble.

“Our park team is honored to work alongside the National Park Service Paleontology Program and now the University of Alabama Geological Sciences Department whose coordinated efforts have made this latest announcement possible.”

Reconstruction of the shallow marine environment and its fauna of the Ste. Genevieve Formation at Mammoth Cave National Park, Kentucky. Image credit: Julius Csotonyi.

Reconstruction of the shallow marine environment and its fauna of the Ste. Genevieve Formation at Mammoth Cave National Park, Kentucky. Image credit: Julius Csotonyi.

The two new species of ctenacanth sharks, Troglocladodus trimblei and Glikmanius careforum, would have hunted the ancient near-shore habitats that covered Kentucky and Alabama over 325 million years ago.

The area was once an ancient seaway that connected what is now eastern North America, Europe, and northern Africa, but would later disappear as the supercontinent Pangea formed.

Troglocladodus trimblei was identified from adult and juvenile teeth found within the St. Louis and Ste. Genevieve Formations of Mammoth Cave and the Bangor Formation.

The ancient shark is estimated to have reached about 3-3.7 m (10-12 feet) in length — about the size of an oceanic white tip shark.

Glikmanius careforum was identified primarily from teeth in the St. Louis, Ste. Geneveive, and Haney Formations at Mammoth Cave and the Hartselle and Bangor Formations of Alabama, but a partial set of jaws and gills of a young Glikmanius careforum was also found at Mammoth Cave.

The species was between 3 and 3.7 m in length; its jaw shape suggests it had a short head with a powerful bite for hunting smaller sharks, bony fish, and squid-like orthocones.

“The discovery pushes the origins of this ctenacanth shark back over 50 million years earlier than expected,” the paleontologists said.

The study was published in the journal Parks Stewardship Forum.

_____

J.M. Hodnett et al. 2024. Sharks in the dark: Paleontological resource inventory reveals multiple successive Mississippian Subperiod cartilaginous fish (Chondrichthyes) assemblages within Mammoth Cave National Park, Kentucky. Parks Stewardship Forum 40 (1); doi: 10.5070/P540162921

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Sci-News.com – https://www.sci.news/paleontology/carboniferous-ctenacanth-sharks-12667.html

Tags: CarboniferousscienceSpecies
Previous Post

Hubble Space Telescope Looks at Distorted Spiral Galaxy

Next Post

Saturn’s Moon Mimas Harbors Global Ocean beneath Its Icy Shell, Study Suggests

Academics critique Farming Simulator’s portrayal of ‘good farming’ and praise modders for agro-ecology add-ons – PC Gamer

Academics critique Farming Simulator’s portrayal of ‘good farming’ and praise modders for agro-ecology add-ons – PC Gamer

July 9, 2025
Why is the Earth spinning faster? Is time speeding up? Australia’s experts give us their second opinion – The Guardian

Why is the Earth spinning faster? Is time speeding up? Australia’s experts give us their second opinion – The Guardian

July 9, 2025
200 million year-old jawbone revealed as new species – BBC

200 million year-old jawbone revealed as new species – BBC

July 9, 2025
Off-grid homeowner dispels common misconceptions about his lifestyle: ‘Doesn’t mean I live primitively’ – Yahoo

Off-Grid Living Uncovered: How One Homeowner Thrives Without Sacrificing Modern Comforts

July 9, 2025
Fluminense Is the Big Winner of the Controversial 2025 Club World Cup – Sportico.com

Fluminense Is the Big Winner of the Controversial 2025 Club World Cup – Sportico.com

July 9, 2025
A Masterclass on Status, Power, & the Economy with Tressie M… – Kottke.org

Unlocking Status, Power, and the Economy: A Masterclass with Tressie M

July 9, 2025
Monumental Sports & Entertainment’s Samantha Brady on the Power of the RSN’s Direct-to-Consumer Streaming Service Monumental+ – Sports Video Group

Samantha Brady Reveals How Monumental+ is Transforming Sports Streaming with Direct-to-Consumer Access

July 9, 2025
Tuesday’s Station Research Advancing Crew Health as Crew Unpacks Cargo – NASA (.gov)

Tuesday’s Station Research Advancing Crew Health as Crew Unpacks Cargo – NASA (.gov)

July 9, 2025
Musk says he is forming new political party after fallout with Trump – CNN

Musk says he is forming new political party after fallout with Trump – CNN

July 9, 2025
Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

July 9, 2025

Categories

Archives

July 2025
MTWTFSS
 123456
78910111213
14151617181920
21222324252627
28293031 
« Jun    
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 (712)
  • Economy (737)
  • Entertainment (21,625)
  • General (15,793)
  • Health (9,774)
  • Lifestyle (742)
  • News (22,149)
  • People (737)
  • Politics (745)
  • Science (15,954)
  • Sports (21,235)
  • Technology (15,720)
  • World (718)

Recent News

Academics critique Farming Simulator’s portrayal of ‘good farming’ and praise modders for agro-ecology add-ons – PC Gamer

Academics critique Farming Simulator’s portrayal of ‘good farming’ and praise modders for agro-ecology add-ons – PC Gamer

July 9, 2025
Why is the Earth spinning faster? Is time speeding up? Australia’s experts give us their second opinion – The Guardian

Why is the Earth spinning faster? Is time speeding up? Australia’s experts give us their second opinion – The Guardian

July 9, 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