Fossil Science
Recent News |  Archives |  Tags |  About |  Newsletter |  Submit News |  Links |  Subscribe to FossilScience.com RSS Feed Subscribe


More Articles
New material steals oxygen from the airNew material steals oxygen from the air

'Programmable' antibiotic harnesses an enzyme to attack drug-resistant microbes'Programmable' antibiotic harnesses an enzyme to attack drug-resistant microbes

Origin of moon's 'ocean of storms' revealedOrigin of moon's 'ocean of storms' revealed

More physical activity improved school performanceMore physical activity improved school performance

Building a bridge from basic botany to applied agricultureBuilding a bridge from basic botany to applied agriculture

Shape up quickly -- applies to fish, too!Shape up quickly -- applies to fish, too!

Engineering new vehicle powertrainsEngineering new vehicle powertrains

All directions are not created equal for nanoscale heat sourcesAll directions are not created equal for nanoscale heat sources

Pressing the accelerator on quantum roboticsPressing the accelerator on quantum robotics

Around the world in 400,000 years: The journey of the red foxAround the world in 400,000 years: The journey of the red fox

Active aging is much more than exerciseActive aging is much more than exercise

Making oxygen before lifeMaking oxygen before life

Protecting our processorsProtecting our processors

Gut bacteria, artificial sweeteners and glucose intoleranceGut bacteria, artificial sweeteners and glucose intolerance

Are the world's religions ready for ET?Are the world's religions ready for ET?

Researchers demonstrate direct fluid flow influences neuron growthResearchers demonstrate direct fluid flow influences neuron growth

Study: New device can slow, reverse heart failureStudy: New device can slow, reverse heart failure

Recreating the stripe patterns found in animals by engineering synthetic gene networksRecreating the stripe patterns found in animals by engineering synthetic gene networks

Communication without detoursCommunication without detours

Chicxulub didn't do it all by itselfChicxulub didn't do it all by itself

First pictures of BRCA2 protein show how it works to repair DNAFirst pictures of BRCA2 protein show how it works to repair DNA

Laying the groundwork for data-driven scienceLaying the groundwork for data-driven science

Hold on, tiger momHold on, tiger mom

Nature's designs inspire research into new light-based technologiesNature's designs inspire research into new light-based technologies

Missing piece found to help solve concussion puzzleMissing piece found to help solve concussion puzzle

Biologists delay the aging process by 'remote control'Biologists delay the aging process by 'remote control'

Geography matters: Model predicts how local 'shocks' influence U.S. economyGeography matters: Model predicts how local 'shocks' influence U.S. economy

Identified for the first time what kind of explosive has been used after the detonationIdentified for the first time what kind of explosive has been used after the detonation

Copied from nature: Detecting software errors via genetic algorithmsCopied from nature: Detecting software errors via genetic algorithms

New coelacanth find rewrites history of the ancient fish (5/7/2012)

Tags:
coelacanths

Coelacanths, an ancient group of fishes once thought to be long extinct, made headlines in 1938 when one of their modern relatives was caught off the coast of South Africa. Now coelacanths are making another splash and University of Alberta researchers are responsible.

Lead U of A researcher Andrew Wendruff identified fossils of a coelacanth that he says are so dramatically different from previous finds, they shatter the theory that coelacanths were evolutionarily stagnant in that their body shape and life-style changed little since the origin of the group.

Wendruff says his one-metre-long, forked tailed coelacanth was an 'off-shoot' lineage that lived 240 million years ago. It falls between the earliest coelacanth fossils of 410 million years ago and the latest fossils dated about 75 million years ago, near the end of the age of dinosaurs.

"Our coelacanth had a forked tail, indicating it was a fast-moving, aggressive predator, which is very different from the shape and movement of all other coelacanths in the fossil record," said Wendruff.

Wendruff's research co-author, U of A Professor Emeritus Mark Wilson, describes typical coelacanths as having chunky bodies, fins of varying size and broad, flexible tails. "These fish were slow moving and probably lay in wait for their prey," said Wilson.

Wendruff's coelacanth is named Rebellatrix, which means rebel coelacanth. The researchers say Rebellatrix came along after the end-Permian mass extinction 250 million years ago, an event so lethal it wiped out 90 per cent of marine life. Rebellatrix filled a previously unoccupied predator niche, but it didn't fare well.

"Rebellatrix was likely a spectacular failure in the evolution of cruising predation," said Wendruff. "Clearly some other fish groups with forked-tails must have outperformed this coelacanth as it does not appear later in the fossil record."

The fossils of Rebellatrix described by the U of A team were found in the Rocky Mountains near Tumbler Ridge, British Columbia.

The research by Wendruff and Wilson was published May 2, as the cover article in the Journal of Vertebrate Paleontology.

Note: This story has been adapted from a news release issued by the University of Alberta

Post Comments:

Search
New Articles
Stunning finds from ancient Greek shipwreckStunning finds from ancient Greek shipwreck

Greek Bronze Age ended 100 years earlier than thought, new evidence suggests

How dinosaurs divided their meals at the Jurassic dinner table

Ancient rhino-relatives were water-lovingAncient rhino-relatives were water-loving

UCLA Egyptologist gives new life to female pharaoh from 15th century BC

Tracing our ancestors at the bottom of the sea

52-million-year-old amber preserves 'ant-loving' beetle52-million-year-old amber preserves 'ant-loving' beetle

How dinosaur arms turned into bird wings

Tooth serves as evidence of 220 million-year-old attackTooth serves as evidence of 220 million-year-old attack

Dinosaur family tree gives fresh insight into rapid rise of birds

Fossil of multicellular life moves evolutionary needle back 60 million yearsFossil of multicellular life moves evolutionary needle back 60 million years

Stone Age site challenges old archaeological assumptions about human technology

Innovative Stone Age tools were not African invention, say researchersInnovative Stone Age tools were not African invention, say researchers

New dinosaur from New Mexico has relatives in AlbertaNew dinosaur from New Mexico has relatives in Alberta

Answer to restoring lost island biodiversity found in fossilsAnswer to restoring lost island biodiversity found in fossils



Archives
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007


Science Friends
Agricultural Science
Astronomy News
Biology News
Biomimicry Science
Cognitive Research
Chemistry News
Tissue Engineering
Cancer Research
Cybernetics Research
Electonics Research
Forensics Report
Genetic Archaeology
Genetics News
Geology News
Microbiology Research
Nanotech News
Parenting News
Physics News


  Archives |  Submit News |  Advertise With Us |  Contact Us |  Links
Use of this site constitutes acceptance of our Terms of Service and Privacy Policy. All contents © 2000 - 2015 Web Doodle, LLC. All rights reserved.