Navigation Links
From obscurity to dominance: Tracking the rapid evolutionary rise of ray-finned fish
Date:7/22/2013

new forms. This diverse band of survivors spread worldwide and persisted for nearly 100 million years.

A study by Sallan and Coates was published online July 22 in the Zoological Journal of the Linnean Society.

"These early, post-Devonian ray-finned fish provide the first glimpse of what is to come: an evolutionary profusion of body forms, fin shapes, and extraordinary jaws and teeth. The ray-finned fish really do exemplify Darwin's comment about 'endless forms most beautiful and wonderful,'" Coates said.

There are around 30,000 species of ray-finned fish today, comprising nearly 99 percent of all fish species. Think of the word "fish" and the image that pops into your mind will likely be a ray-finned fish, members of a ubiquitous class that includes everything from tuna to trout, catfish to cod, swordfish to sunfish, perch to piranha, goldfish to goby.

After re-evaluating fossils from sites in Scotland dating to 348 million years ago, Sallan and Coates concluded that Fouldenia and its relative Styracopterus, which previous researchers had classified as the same species, are in fact separate genera. A genus is the category of biological classification between the family and the species.

Sallan and Coates determined that Fouldenia had massive tooth plates on its upper and lower jaws, suitable for preying on hard-shelled animals. It resembled modern-day jacks, which include the Japanese amberjack, or yellowtail, familiar to sushi lovers. Styracopterus was an early mimic of modern deep-bodied fish such as the angelfish. Both of these primeval fish were less than 10 inches long.

"Those Scottish fossil beds have four or five known genera of ray-finned fish in them. They all look completely different, and they all do completely different things," Sallan said.

The same sites have also produced some of the earliest post-Devonian tetrapods, four-limbed creatures that included
'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. UC research: Tracking Lake Erie water snake in fight against invasive fish
2. Genetic markers for tracking species
3. Elephant seal tracking reveals hidden lives of deep-diving animals
4. uAttend Time Tracking Solutions Available at TimeClockDeals.com
5. Probing the roots of depression by tracking serotonin regulation at a new level
6. Tracking the effects of prenatal alcohol exposure through to 9 years of age
7. Vitamin B12 deficiency: Tracking the genetic causes
8. Tracking shuttle exhaust reveals more information about atmospheric winds
9. Tracking fish through a coral reef seascape
10. TB outbreaks could be solved by DNA tracking
11. Precision motion tracking -- thousands of cells at a time
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... Stem Cell scientists have set a "mouse TRAP" to ... by a recent study published in the Journal ... uses a technique called TRAP to extract cellular and ... Invented by scientists at the Rockefeller Institute for Medical ... to the protein-making machinery, or ribosomes, of the cell ...
(Date:7/11/2014)... Social animals often develop relationships with other group members ... In wild chacma baboons the strategy for grooming activities ... are just published in the scientific journal Biology ... of baboons is not practiced without ulterior motives. To ... for the individual, while grooming another individual can provide ...
(Date:7/11/2014)... The increased risk of kidney injury related to ... reflects the mass of HES molecules, according to a ... of the International Anesthesia Research Society (IARS). , The ... of HES on cultured human renal proximal tubule cells ... and colleagues of University Hospital Wrzburg, Austria. Other ...
Breaking Biology News(10 mins):Baboons groom early in the day to get benefits later 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2
... history, are still mightily puzzling the scientists. These plant-eating dinosaurs ... height of 10 meters or more and dominated all other ... to 80 tons, more than any other known land vertebrate. ... giants of the animal kingdom regulated their own body temperature. ...
... corn leads the all-important category of biomass yield. However, focusing ... the current issue of the Proceedings for the National ... looking at the big picture allows other biofuel crops, such ... "We believe our findings have major implications for bioenergy ...
... CAMBRIDGE, MA -- MIT engineers have devised a way ... better than an attogram one millionth of a ... both synthetic nanoparticles and biological components of cells, could ... The system builds on a technology previously developed by ...
Cached Biology News:New research on sauropod gigantism summarized in publicly available collection 2New research on sauropod gigantism summarized in publicly available collection 3More to biofuel production than yield 2Weighing particles at the attogram scale 2Weighing particles at the attogram scale 3Weighing particles at the attogram scale 4
(Date:7/11/2014)... Scottsdale, AZ (PRWEB) July 11, 2014 ... medicine device company specializing in the soft tissue ... SureLock All-Suture Anchor System for surgeries involving the ... predictable fixation through a novel, inserter-controlled deployment method. ... lead to partial deployment, anchor pull-out, or anchor ...
(Date:7/10/2014)... 2014 Product and process impurities ... abundance and are often “lost in the noise,” ... Join presenters Dr. Rowel Tobias, Senior Scientist, Protein ... Head of Quality at Nanotherapeutics, Inc., to lear ... speed detection and quantitation while achieving the required ...
(Date:7/10/2014)... Understanding the need for better quality ... the gap that currently exists in this area, ChanTest ... portfolio of validated ion channel and GPCR cell lines. ... as ion channels control many critical physiological functions throughout ... the potential to treat a variety of human diseases. ...
(Date:7/10/2014)... Francisco, CA (PRWEB) July 10, 2014 ... family closer together. The Archer Family purchased a ... contained within DNA, but ended up with a lifetime ... discoveries contained within the family members’ DNA genuinely brought ... had decided to search deeper into genetic history and ...
Breaking Biology Technology:Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5
... lab of James Tour have brought graphite,s potential as ... reality and created the potential for reprogrammable gate arrays ... logic design. In a paper published in ... postdoctoral associate Alexander Sinitskii show how they,ve used industry-standard ...
... , , CAMBRIDGE, Mass., ... pioneer in the development of next-generation cellulosic ethanol and high-performance specialty ... stock became effective at 5:00 p.m. today. Verenium,s shares will ... "VRNM", with the letter "D" added to the end of the ...
... , SAN DIEGO, Sept. 9 ... Ltd. today announced an exclusive sales agency agreement under which ... presence in Australia. The partnership will initially focus on new ... a strong reputation in the supply of genomics technologies and ...
Cached Biology Technology:Graphitic memory techniques advance at Rice 2Graphitic memory techniques advance at Rice 3Verenium 1:12 Reverse Stock Split Takes Effect 2Verenium 1:12 Reverse Stock Split Takes Effect 3Verenium 1:12 Reverse Stock Split Takes Effect 4SEQUENOM Announces Partnership With GeneWorks for Sales & Marketing of MassARRAY Systems and Applications in Australia 2SEQUENOM Announces Partnership With GeneWorks for Sales & Marketing of MassARRAY Systems and Applications in Australia 3SEQUENOM Announces Partnership With GeneWorks for Sales & Marketing of MassARRAY Systems and Applications in Australia 4
... Dyad instrument is the most advanced thermal ... world-class thermal performance, the Dyad also boasts ... as point-and-click navigation via touch pad or ... easily and economically expanded to a four-bay ...
...
The sealed ice cooling unit is used to absorb heat that is generated during transfers performed in the Criterion blotter....
Printer paper for Model 680 series readers is used with the thermal printers of the Model 680 and Model 680 XR microplate readers. Supplied as 2 rolls....
Biology Products: