Quantcast
Last updated on April 16, 2014 at 13:17 EDT

Latest Agnatha Stories

Vertebrate Study Reveals The Evolution Of The Face
2014-02-13 09:19:21

[ Watch the Video: Animation Sequence of Romundina Fish Fossil ] Brett Smith for redOrbit.com - Your Universe Online Faces allow us to recognize each other almost instantaneously – so much so that they are the primary feature on our driver’s licenses and other identification cards. A study published on Wednesday in the journal Nature has revealed new details on the evolution of the jaw – a major defining structure in the evolution of the face. In the study, a team of...

Ancient Eel-Like Chordates Linked To Evolution Of Human Skeleton
2013-10-17 07:59:04

redOrbit Staff & Wire Reports - Your Universe Online An international team of paleontologists has published new research in the journal Nature revealing that the human skeleton did not evolve from ancient predatory fossil fish, as previously believed. Rather, the human skeleton evolved as a way to protect against predators such as the conodont, extinct eel-like chordates that evolved tooth-like structures and tissues independently of other creatures, according to experts from...

New Insight Into Evolution Offered From Unusual Anal Fin
2013-04-10 09:31:33

University of Manchester An unusual fossil fish that has fins behind its anus could have implications for human evolution according to a scientist at The University of Manchester. Dr Robert Sansom from the Faculty of Life Sciences identified the paired fins of Euphanerops, a fossil jawless fish that swam in the seas around 370 million years ago. The find makes the fish one of the first vertebrate to develop paired appendages such as fins, legs or arms. However, their positioning is...

Genome Sequencing Of The Sea Lamprey Completed By Researchers
2013-03-02 05:21:25

Brett Smith for redOrbit.com - Your Universe Online According to a report in the journal Nature Genetics, an international team of geneticists has announced the successful sequencing of the sea lamprey genome. The sea lamprey makes for an interesting genetic case from an evolutionary standpoint, being a jawless vertebrate that diverged from jawed vertebrates millions of years ago. “The sea lamprey is a primitive jawless vertebrate that diverged from other jawed vertebrates...

2011-07-07 00:38:56

New data on the initial diversification of jaws sheds light on early vertebrate feeding ecology More than 99 per cent of modern vertebrates (animals with a backbone, including humans) have jaws, yet 420 million years ago, jawless, toothless armour-plated fishes dominated the seas, lakes, and rivers. There were no vertebrates yet on land and the recently evolved jawed fishes were minor players in this alien world, some sporting unusual jaw shapes and structures that bear little physical...

2010-09-25 01:36:02

A half-billion years ago, vertebrates lacked the ability to chew their food. They did not have jaws. Instead, their heads consisted of a flexible, fused basket of cartilage. This week, an international team of researchers led by a faculty member from the University of Colorado at Boulder published evidence that three genes in jawless vertebrates might have been key to the development of jaws in higher vertebrates. The finding is potentially significant in that it might help explain how...

e0c467fa255d314d410c5ef5e7353db8
2004-12-03 07:22:58

GRANTS PASS, Ore. (AP) -- The U.S. Fish and Wildlife Service has agreed to review whether four species of lamprey found on the West Coast should be protected by the Endangered Species Act. Under the settlement of a lawsuit filed earlier this year in U.S. District Court in Portland, the agency agreed to make an initial decision by Dec. 20 on whether a yearlong review should be done on the status of Pacific lamprey, river lamprey, western brook lamprey and kern brook lamprey. Any yearlong...


Latest Agnatha Reference Libraries

0_127790463bfb38d3bcb5bac0ab4ce0f0
2009-01-20 20:31:33

The Pacific Hagfish (Eptatretus stoutii) also known as the Slime Eel, is a species of hagfish that is found in the mesopelagic (600 to 3000 feet deep) to abyssal (13,000 to 21,000 feet deep) Pacific ocean, near the ocean floor. In many parts of the world, including the USA, hagfish-skin clothing, belts, and other accessories are advertised and sold as "yuppie leather" or "eel-skin". Hagfish, however, are not true eels. This is a jawless fish, as it evolved to lose this trait from the early...

More Articles (1 articles) »