Navigation Links
Fossil fragments reveal 500-million-year-old monster predator
Date:3/19/2009

> by the possession of a huge three-part carapace that projects out from the front of the animal's head.

"This structure is unlike anything seen in other fossil or living arthropods," says Ph.D. student Allison Daley, who has been studying the fossils for three years as part of her doctoral thesis.

"The use of the large carapace extending from the front of its head is a mystery. In many animals, a shell or carapace is used to protect the soft-parts of the body, as you would see in a crab or lobster, but this structure in Hurdia is empty and does not cover or protect the rest of the body. We can only guess at what its function might have been."

Hurdia and Anomalocaris are both early offshoots of the evolutionary lineage that led to the arthropods, the large modern group that contains the insects, crustaceans, spiders, millipedes and centipedes. They reveal details of the origins of important features that define the modern arthropods such as their head structures and limbs. As well as its bizarre frontal carapace, Hurdia reveals exquisite details of the gills associated with the body, some of the best preserved in the fossil record.

"Most of the body is covered in the gills, which were probably necessary to provide oxygen to such a large, actively swimming animal," says Allison Daley.


'/>"/>

Contact: Allison Daley
allison.daley@geo.uu.se
46-076-712-5431
Uppsala University
Source:Eurekalert

Page: 1 2

Related biology news :

1. First orchid fossil puts showy blooms at some 80 million years old
2. Fossil data plugs gaps in current knowledge, study shows
3. Microfossils disclose geologic history of eastern California
4. Living fossils have hot sex
5. Fossilized cashew nuts reveal Europe was important route between Africa and South America
6. Fossil record supports evidence of impending mass extinction
7. Fossil record reveals elusive jellyfish more than 500 million years old
8. Can plant-based ethanol save us from our fossil fuel addiction?
9. 390-million-year-old scorpion fossil -- biggest bug known
10. Rodent fossils allows to determine climate of the Iberian Peninsula 6 million years ago
11. Fossils excavated from Bahamian blue hole may give clues of early life
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/2/2015)... 2015 In the current ... outperforms the strongest competitors, showing outstanding performance in ... system is capable of a throughput of 5.000.000 ... to be ten times faster than most competitors ...      (Photo: http://photos.prnewswire.com/prnh/20150402/738673-a ) ...
(Date:4/1/2015)... BOSTON , April 1, 2015   Medisafe ... 1.5 million users across iOS and ... has begun integrating biofeedback into the platform to allow ... health outcomes. For the first time, patients will be ... missing a dose impacts important biometrics, such as glucose ...
(Date:3/24/2015)... and Markets ( http://www.researchandmarkets.com/research/hdgz7h/global_iris ) has announced ... 2015-2019" report to their offering. The ... at a CAGR of 23.5 percent over the period ... and the growth prospects of the Global Iris Recognition ... size, the report considers the revenue generated from sales ...
Breaking Biology News(10 mins):DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3Medisafe Announces Launch of Biometric Integration, Enabling Patients to Stay Adherent to Their Meds and See Tangible Health Results 2Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2
... determined that milk thistle extract, a widely used ... on the course of patients with alcoholic liver ... These findings are published in The American ... studies, milk thistle extracts have been shown to ...
... more than half of children with sore throat, exceeding ... antibiotics for 27 percent of children who received an ... 9 issue of JAMA. , Pharyngitis (inflammation of the ... to family medicine physicians and pediatricians, according to background ...
... young scientists in the University of York's Department of ... patients some of the unpleasant and dangerous side-effects of ... together with post-doctoral research fellow Mark Godber, have developed ... tumours more efficiently. , Now, the group has secured ...
Cached Biology News:Children overprescribed antibiotics for sore throat 2Young scientists turn to gel to ease side-effects of cancer treatment 2
(Date:4/28/2015)... Spartan Bioscience today announced that Paul ... by the Ottawa Chamber of Commerce as one of ... selected from over 240 applicants based on his business ... Spartan, Dr. Lem founded Plexagen Diagnostics, and also served ... a Medical Degree from the University of Ottawa, and ...
(Date:4/27/2015)... , April 27, 2015  For about a ... is their ability to utilize and catabolize glucose ... cancer cells is called the ,Warburg phenomenon", that ... of high oxygen presence, leading to enhanced lactate ... cells still choose glucose fermentation. A variety of ...
(Date:4/27/2015)... Diego, Calif. (PRWEB) April 27, 2015 ... of drug and chemical toxicity carries implications for advancing ... speaker April 28 at National University , the ... and presentation by Dr. Hanzlik, a professor at the ... drug metabolism and drug design, starts at 5 p.m. ...
(Date:4/27/2015)... BRUNSWICK, New Jersey , 27 ... société de découverte médicamenteuse spécialisée dans ... antibiotiques destinés à soigner les infections ... aujourd,hui la présentation de données prouvant ... majeur, le TXA709, dans la lutte ...
Breaking Biology Technology:Spartan Bioscience Announces Paul Lem Named Ottawa’s Top 40 Under 40 2Study Indicates Cancer Cells Alter Glucose Metabolism to Enhance Energy Production and Cell Growth 2Dr. Robert Hanzlik Discusses Pharmaceutical Testing Models at Event Hosted by National University 2Dr. Robert Hanzlik Discusses Pharmaceutical Testing Models at Event Hosted by National University 3TAXIS Pharmaceuticals démontre la puissance clinique du TXA709 dans la lutte contre la résistance aux antibiotiques 2TAXIS Pharmaceuticals démontre la puissance clinique du TXA709 dans la lutte contre la résistance aux antibiotiques 3TAXIS Pharmaceuticals démontre la puissance clinique du TXA709 dans la lutte contre la résistance aux antibiotiques 4TAXIS Pharmaceuticals démontre la puissance clinique du TXA709 dans la lutte contre la résistance aux antibiotiques 5TAXIS Pharmaceuticals démontre la puissance clinique du TXA709 dans la lutte contre la résistance aux antibiotiques 6
... in a line of reports paints a bleak picture ... such financing could be at its lowest level in ... to year's end. , ,The Money Tree Survey ... and the National Venture Capital Association, indicates that, unless ...
... Chippewa Valley representatives hope to score points with medical ... the largest medical device tradeshow in the Midwest. ... Minneapolis Convention Center on November 2nd and 3rd is ... company executives. , ,The twelve representatives include economic development ...
... Madison, Wis. - Sonic Foundry Inc. announced today ... "E-rate" program, which offers schools around the country the ... , ,The E-rate program is designed to provide discounts ... for the cost of education technology. Funded technology includes ...
Cached Biology Technology:While some bemoan lack of venture capital, entrepreneur touts `bootstrapping' for cash 2While some bemoan lack of venture capital, entrepreneur touts `bootstrapping' for cash 3While some bemoan lack of venture capital, entrepreneur touts `bootstrapping' for cash 4Chippewa Valley reps hope to score at Twin Cities tradeshow 2
...
... Immunogen: Partially purified chicken ... detects vitamin D receptor (VDR) from ... and fish tissues. This antibody ... glucocorticoid receptors. MA1-710 detects both ...
... AccuPrime™ Pfx DNA Polymerase is ideal ... for downstream applications such as cloning ... provided by a proprietary enzyme preparation ... sp. with proofreading (3'Cut Site5' exonuclease) ...
... The BV-10 offers precision beveling ... and 50m. The unique abrasive ... free for greater control of ... be accomplished very rapidly and ...
Biology Products: