Navigation Links
Ancient amphibians left full-body imprints
Date:10/30/2007

Unprecedented fossilized body imprints of amphibians have been discovered in 330 million-year-old rocks from Pennsylvania. The imprints show the unmistakably webbed feet and bodies of three previously unknown, foot-long salamander-like critters that lived 100 million years before the first dinosaurs.

"Body impressions like this are wholly unheard of," said paleontologist Spencer Lucas, a curator at the New Mexico Museum of Natural History and Science. Lucas will present the discovery on Tuesday, 30 October 2007, at the annual meeting of the Geological Society of America in Denver.

The fossil imprints, while lacking any bones of the animals, actually contain rare information that bones cannot, said Lucas. Without the imprints of the webbed four-toed feet, for instance, it would be virtually impossible to say they were truly amphibians. The imprints also provide body proportions and important clues to the kind of outer skin the little beasts had. The skin is smooth, not armor plated as many would have expected, Lucas said.

The imprints were found in reddish brown, fine-grained sandstone rocks of the Mauch Chunk Formation in eastern Pennsylvania that correspond to what's known as the Visean Age, an early part of the Mississippian Epoch. That, in turn, is part of the Paleozoic Era that stretched from 542 million years ago to 251 million years ago, when the age of reptiles started. The Mauch Chunk is older and therefore located beneath the heavily mined coal beds of Pennsylvania.

Also found in rocks from the same formation and of the same age are footprints of other relatively large animals and fossils of insects and plants, Lucas explained. There is even a saucer-sized footprint of an unknown vertebrate that suggests larger four-footed beasts lived far earlier than ever before suspected.

"It's bigger than anything discovered in the bone record," said Lucas.

Interestingly, the rock specimen with the t
'/>"/>

Contact: Ann Cairns
acairns@geosociety.org
303-357-1056
Geological Society of America
Source:Eurekalert

Page: 1 2

Related biology news :

1. Ancient olfaction protein is shared by many bugs, offering new pest control target
2. Researchers find missing genes of ancient organism
3. Family trees of ancient bacteria reveal evolutionary moves
4. Scientists find fossil proof of Egypts ancient climate
5. U-M team recovers ancient whale in Egyptian desert
6. Ancient immune defense mechanism is no match for HIV-1
7. Ancient DNA helps clarify the origins of two extinct New World horse species
8. Deep sea algae connect ancient climate, carbon dioxide and vegetation
9. Analysis of flower genes reveals the fate of an ancient gene duplication
10. Researchers Discover Ancient Origins Of Tuberculosis-causing Bacteria
11. Ancient DNA confirms single origin of Malagasy primates
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... German . , ... disease affecting the peripheral nervous system. Researchers from the ... Experimental Medicine and University Medical Centre Gttingen have discovered ... rats with the disease. These cells enwrap the nerve ... facilitates the rapid transfer of electrical impulses. If Schwann ...
(Date:8/27/2014)... willing to pay a premium for fruits, vegetables and ... the label claims is another matter. Now scientists studying ... to make sure farms are labelling their produce appropriately. ... Agricultural and Food Chemistry , could help prevent organic ... Food Safety Authority and the Wuerzburg University note that ...
(Date:8/27/2014)... NY (June, 2014) Outstanding basic research, a ... a dedication to patient care have earned the ... University Medical Center (CUMC) and NewYork-Presbyterian Hospital an ... the National Cancer Institute (NCI). The grant renews ... NCI-designated Comprehensive Cancer Centers in New York City ...
Breaking Biology News(10 mins):Potential therapy for incurable Charcot-Marie-Tooth disease 2Herbert Irving Comprehensive Cancer Center awarded $18 million grant 2Herbert Irving Comprehensive Cancer Center awarded $18 million grant 3Herbert Irving Comprehensive Cancer Center awarded $18 million grant 4
... This release is available in German . ... extended hot and dry periods with sand storms are significant ... German Ministry of Education and Research (BMBF) the MoMo - ... Mongolia (MoMo) is focused on identifying appropriate water management solutions ...
... 30, 2012 Reportlinker.com announces that a new ... DNA Sequencing: Emerging Technologies and ... INTRODUCTION STUDY OBJECTIVES ... is to provide an overview of the current ...
... Calif.A recent report analyzing a range of published studies ... the U.S. and Canada provides a more complete picture ... Previously published studies reported a wide variety ... fuels and wildfire. A team of researchers from the ...
Cached Biology News:The first pilot wastewater treatment plant with integrated wood production opened in Mongolia 2The first pilot wastewater treatment plant with integrated wood production opened in Mongolia 3DNA Sequencing: Emerging Technologies and Applications 2DNA Sequencing: Emerging Technologies and Applications 3DNA Sequencing: Emerging Technologies and Applications 4DNA Sequencing: Emerging Technologies and Applications 5DNA Sequencing: Emerging Technologies and Applications 6DNA Sequencing: Emerging Technologies and Applications 7DNA Sequencing: Emerging Technologies and Applications 8DNA Sequencing: Emerging Technologies and Applications 9DNA Sequencing: Emerging Technologies and Applications 10DNA Sequencing: Emerging Technologies and Applications 11DNA Sequencing: Emerging Technologies and Applications 12DNA Sequencing: Emerging Technologies and Applications 13DNA Sequencing: Emerging Technologies and Applications 14DNA Sequencing: Emerging Technologies and Applications 15DNA Sequencing: Emerging Technologies and Applications 16DNA Sequencing: Emerging Technologies and Applications 17DNA Sequencing: Emerging Technologies and Applications 18New report examines effects of trees killed by bark beetles on wildfire 2
(Date:8/27/2014)... August 27, 2014 Varian Medical Systems ... its current Salt Lake City manufacturing facility and allow ... Utah to ultimately create 1,000 new full time jobs ... , “Utah is home to hardworking people with immense ... credited with Varian’s success in the manufacturing of our ...
(Date:8/27/2014)... Rhythm, a biopharmaceutical company developing peptide therapeutics ... in metabolic disorders, announced today that it has filed ... Securities and Exchange Commission (SEC) relating to the proposed ... The number of shares to be offered and the ... determined. Citigroup and Cowen and Company will ...
(Date:8/27/2014)... YORK , Aug. 27, 2014 /PRNewswire/ ... research report is available in its catalogue: ... 2014-2018 http://www.reportlinker.com/p02316661/Global-Biodegradable-Packaging-Materials-Market-2014-2018.html ... materials are materials that are readily decomposed ... differs from conventional non-degradable packaging in terms ...
(Date:8/27/2014)... survive impact by the huge amounts of energy ... energy for photosynthesis. The hypothesis is that the ... the energy throughout the entire protein molecule through ... now managed to successfully ,film, this process. , ... which play a role in photosynthesis and thus ...
Breaking Biology Technology:Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 2Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 3Rhythm Files Registration Statement for Proposed Initial Public Offering 2Global Biodegradable Packaging Materials Market 2014-2018 2Global Biodegradable Packaging Materials Market 2014-2018 3Global Biodegradable Packaging Materials Market 2014-2018 4Global Biodegradable Packaging Materials Market 2014-2018 5Global Biodegradable Packaging Materials Market 2014-2018 6Global Biodegradable Packaging Materials Market 2014-2018 7DTU researchers film protein quake for the first time 2
... Feb. 12 WaferGen Biosystems,Inc. (OTC Bulletin Board: ... cell biology and stem cell research systems,today announced ... will deliver a corporate presentation at the Roth ... conference will be held,February 18-21, 2008, at the ...
... Institute,(KGI) today announced that James Greenwood, president and ... "The American,Health Care System & the Presidential Race: ... Annual Simon Ramo Distinguished Lecture Series on,Wednesday, March ... thoroughly delighted that Jim Greenwood will serve as ...
... SOUTH SAN FRANCISCO, Calif., Feb. 12 Rigel,Pharmaceuticals, Inc. ... fourth quarter and year ended December 31, 2007., ... net loss of $19.0,million, or $0.61 per share, compared ... share, in the fourth quarter of 2006. Weighted average ...
Cached Biology Technology:WaferGen to Present at the Roth Capital Partners 20th Annual OC Growth Stock Conference 2KGI Announces BIO President Greenwood to Address Health Care Reform and the Presidential Race at Simon Ramo Lecture 2KGI Announces BIO President Greenwood to Address Health Care Reform and the Presidential Race at Simon Ramo Lecture 3Rigel Announces Fourth Quarter and Year End 2007 Financial Results 2Rigel Announces Fourth Quarter and Year End 2007 Financial Results 3Rigel Announces Fourth Quarter and Year End 2007 Financial Results 4
... Best: DASGIPs Process Control integrates Process ... comprehensive documentation for cultivation processes. A ... pH, dissolved oxygen, temperature and agitation ... Profiles, e.g. constant or scheduled media ...
... LC Sciences provides a genome-wide microRNA ... and proprietary probe design, which enable highly ... (1-3). We have standard arrays for mature ... latest version of the Sanger miRBase database ...
... synthetic peptide whose sequences are derived from mouse resistin protein. ... - S - M - P - L - C - ... - D - K - K - I - K - ... used for neutralization and control experiments with the polyclonal antibody that ...
... Imaging System, Basic Package Superior Protein ... Range: The ProXPRESS 2D Proteomic Imaging System ... for both proteomic and general life science ... enabling the use of all dyes in ...
Biology Products: