Quantcast

Latest Lobe-finned fish Stories

New Fish Fossil Reveals How Fins May Have Become Hind Limbs
2014-01-14 06:11:22

[ Watch the video: Tiktaalik roseae fossils reveal evolution of hind limbs ] April Flowers for redOrbit.com - Your Universe Online The evolution of hind legs actually began as enhanced hind fins, according to the newly discovered, well-preserved pelvis and a partial pelvic fin from Tiktaalik roseae—a 375 million-year old transitional species between fish and the first legged animals. The findings, published in Proceedings of the National Academy of Sciences (PNAS), challenge the...

Genome Of The Coelacanth Sequenced
2013-04-18 05:26:08

April Flowers for redOrbit.com - Your Universe Online The genome of the coelacanth, a creature with an evolutionary history that is both enigmatic and illuminating, has been decoded by the Genome Center of the Broad Institute of MIT and Harvard, and analyzed by an international team of researchers. The findings of this study are published in the journal Nature. The coelacanth, a sea-cave dwelling, five-foot long fish with limb-like fins, was once thought to be extinct until a living...

Ancient Fossils Of Tough Fish Shed Light On Evolution Of Four-Footed Animals
2013-03-28 08:08:22

April Flowers for redOrbit.com - Your Universe Online Describing life in the Devonian period in what is now northern Canada, Dr. Ted Daeschler of Drexel University said, "We call it a 'fish-eat-fish world,' an ecosystem where you really needed to escape predation.” The famous fossil fish species Tiktaalik roseae lived in this environment 375 million years ago. Daeschler, associate professor at Drexel University in the Department of Biodiversity, Earth and Environmental Science,...

100-Million-Year-Old Fossil From Texas Is New Fish Species
2012-10-25 12:45:29

April Flowers for redOrbit.com - Your Universe Online 100-million year old pieces of tiny fossil skull found in Fort Worth, Texas, have been identified as a new species of coelacanth fish, according to paleontologist John F. Graf of Southern Methodist University (SMU) in Dallas. At 400 million years, the coelacanth has one of the longest lineages of any animal. The coelacanth is the most closely related fish to vertebrates, including humans. The findings of this discovery were published...

Ichthyostega_BW
2012-05-24 19:20:53

Lee Rannals for RedOrbit.com Scientists say that the 360-million-year-old animal that was first to have moved around on land did not do so using four legs. Images have shown that Ichthyostega walked on land similar to how a salamander walks around today, but 3D computer models have led scientists to disagree. According to a study published in the journal Nature, Ichthyostega would have actually transported from water using its front limbs as crutches. The animal lived during the...

Rebel Coelacanth Discovery Forces Rethink On Their Evolution
2012-05-03 09:21:49

Canadian researchers have discovered a new species of Triassic coelacanth, a fish presumed extinct until a population was found off the coast of Africa in the 1930s, while digging through a trove of museum fossils, reports Jennifer Viegas for Discovery News. The coelacanth (pronounced SEE-la-kanth) is a primitive, slow-moving fish that is often referred to as a living fossil because it has existed largely unchanged for more than 300 million years. But the new discovery, dubbed Rebellatrix,...

2012-05-02 21:04:47

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...

2011-10-05 12:52:59

A study into the muscle development of several different fish has given insights into the genetic leap that set the scene for the evolution of hind legs in terrestrial animals. This innovation gave rise to the tetrapods–four-legged creatures, and our distant ancestors–that made the first small steps on land some 400 million years ago. A team of Australian scientists led by Professor Peter Currie, of the Australian Regenerative Medicine Institute at Monash University, and Dr...

Image 1 - Researchers Find New Species Of Ancient Predatory Fish
2011-09-12 11:14:53

  The Academy of Natural Sciences today announced the discovery of a new species of large predatory fish that prowled ancient North American waterways during the Devonian Period, before backboned animals existed on land. Drs. Edward "Ted" Daeschler and Jason Downs of the Academy and colleagues from the University of Chicago and Harvard University describe the new denizen of the Devonian they named Laccognathus embryi in the current issue of the Journal of Vertebrate Paleontology....

c63ff14754b453c6ce001df5d567676a1
2010-01-07 06:50:00

Fossilized footprints of a mysterious, long-extinct creature in a Polish quarry have caused paleontologists to reconsider traditional thinking of how sea-based vertebrates moved to land. Until now, scientists have thought they understood the evolutionary transition from fin to foot fairly well. One of the key theories in evolutionary biology is that tetrapods, four-legged animals with a spine, came from fish that had pairs of lobed fins. Fish called elpistostegids were the intermediate stage...


Latest Lobe-finned fish Reference Libraries

39_611e1b2d29287e529fd13d23e651ed8a
2007-03-19 14:52:30

The Queensland lungfish, Neoceratodus forsteri, also known as Burnett salmon and Barramunda, is the sole member of the family Ceratodontidae, and one of the only six lungfish species that remain. Olive or dull brown in color, it grows to about 59.06 in (150 cm) in length, more commonly 39.37 (100 cm). It is native to the Burnett and Mary River systems of south-east Queensland, but has been introduced into other nearby rivers, including the Brisbane River. It prefers still or slow-flowing...

More Articles (1 articles) »
Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
Related