Navigation Links
New discoveries in North America's Great Plains bring ammonites to life
Date:10/13/2010

man.

At one locality in South Dakota, the fossilized methane seeps are exposed on the side of a steep cliff of black rock. Landman and his team criss-crossed the cliff with bright white ropes, forming a grid-like pattern onto which the team mapped the distribution of fossils.

"The result looked like an enormous Christo installation," says Landman. "You have to imagine the underwater scene 70 million years ago: a cloud of zooplankton, with ammonites flocking to the vents, forming isolated communities surrounded by the muddy sea floor. Because the sedimentation rates in the seaway were so rapid, the ammonites and other organisms were buried quickly after death, preserving exquisite details of their morphology."

The new research, published in the Bulletin of the American Museum of Natural History, redescribes the type specimens (holotypes) of two of the most common ammonite species that lived at the time: Hoploscaphites nodosus and H. brevis. The original specimens were collected over 150 years ago from what is probably South Dakota. Hoploscaphites nodosus, previously Jeletzkytes nodosus, is reassigned to Hoploscaphites because new, large fossil collections show that the traditional separation of robust, coarsely ornamented specimens from more slender, finely ornamented specimens is arbitrary. The paper also helps reconstruct the paleogeography of the epicontinetal sea that covered North America at the time as well as other seaways that covered parts of Europe.

Landman and colleagues argue that these ammonites were probably not fast swimmers. They lacked strong muscles which would have been required for strong propulsion. In addition, their jaws could only accommodate small prey and, as a result, they were probably sluggish filter feeders. Many of the ammonites also show injuries. Some of the injuries were healed during life but others resulted in death. Landman argues that the predators we
'/>"/>

Contact: Kristin Elise Phillips
kphillips@amnh.org
212-496-3419
American Museum of Natural History
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Nanoparticle scientist speaks on new discoveries at Goldschmidt Conference
2. Charles Drew University researcher will be honored for discoveries
3. Society of Interventional Radiology highlights medical advances, new discoveries
4. New discoveries could improve climate projections
5. UCR plant scientists research spawns new discoveries showing how crops survive drought
6. Partnership to accelerate Trudeau Institute discoveries to patient care
7. MSU discoveries upend traditional thinking about how plants make certain compounds
8. Field stations foster serendipitous discoveries in environmental, biological sciences
9. UC and partners awarded $23 million to transform discoveries into real-world health solutions
10. Industry to Demonstrate Off-the-Shelf Integrated Force Protection and Counter-Terrorism Solutions at Northern Virginia Site
11. TERMIS-North America announces speakers for annual event
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New discoveries in North America's Great Plains bring ammonites to life
(Date:11/3/2014)... Research and Markets has announced the ... Markets and Companies" to their offering. ... which have already started to play an important role in ... the old fashioned bone marrow transplants. Role of cells in ... become a part of medical practice. Stem cells ...
(Date:11/3/2014)...  NeuroSigma ® , Inc. (NeuroSigma), a ... on commercialization of its non-invasive Monarch ... neurological and neuropsychiatric disorders, announced today that the ... Notice of Allowance for Mexican Patent Application No. ... and the Regents of the University of California ...
(Date:11/2/2014)... of Physics World , James Dacey explores the ... death" to take their innovations from the lab into ... challenge facing all start-up companies as they move from ... of two main factors: physics-based inventions are usually far ... out to be a lot more complicated than had ...
Breaking Biology News(10 mins):Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 2Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 3NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 2NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 3The 'valley of death' facing physics start-ups 2
... Ariz. (Sept. 13, 2012) -- Shane Snyder, who earlier ... Water Works Association (AWWA), has been invited to present ... 3,500 at the 2012 International Water Association,s (IWA) World ... professor,s presentation will focus not only on his research ...
... Scientists have found the answer to why female killer whales have ... their adult sons. Led by the Universities of Exeter and York ... the research shows that, for a male over 30, the death ... his death within the following year. The reason for the ...
... of bioengineering at Stanford University, has won a Director,s ... award includes a five-year, $2.5 million grant to be ... to affect a broad area of biomedical or behavioral ... to explore the use of synthetic biology platforms and ...
Cached Biology News:UA engineering professor Shane Snyder to speak in Korea on international water quality 2Long menopause allows killer whales to care for adult sons 2Long menopause allows killer whales to care for adult sons 3
(Date:11/24/2014)... November 24, 2014 2014 Deep ... Industry is a professional and in-depth research report ... Dihydrazide information, like its definition, classification, application, and ... This report covers the international market analysis, including ... as the US, Europe, Asia, China, Japan etc. ...
(Date:11/23/2014)... (PRWEB) November 23, 2014 Apiscent ... supplier of fine chemical ingredients to the global ... launch of its new website, Apiscent.com. , The ... Apiscent Labs, clean design, easy navigation, rotating images ... Apiscent Labs stand out. , The ...
(Date:11/22/2014)... CannLabs, Inc. (OTCQB: CANL), ... scientific testing methodologies relating to cannabis, today announced that ... of credit from an existing stockholder of the Company. ... this commitment from one of our existing stockholders,” stated ... capital will help accelerate our planned expansions into the ...
(Date:11/22/2014)... 22, 2014 Respiratory therapy students ... proper management of life-like respiratory ailments using the ... . Grand Rapids-based, Michigan Instruments Inc. developers of ... of the respiratory simulation units to the pro-gram, ... Valley and Muskegon Community College are collaborating to ...
Breaking Biology Technology:Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 2Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 3CannLabs Secures $750,000 Line Of Credit 2Michigan Instruments Donates Two Respiratory Simulation Training and Test Lung (TTL) Devices to Grand Valley State University 2Michigan Instruments Donates Two Respiratory Simulation Training and Test Lung (TTL) Devices to Grand Valley State University 3
... proxy, FOR the Election of, Two ... May 15 /PRNewswire/ - The Concerned Shareholders of Biovail ... (TSX:BVF) continues to mislead its shareholders by making the ... requisition was simply about governance reform and has already ...
... Nile Therapeutics, Inc. (Nasdaq: NLTX ... therapeutics for heart failure patients, received notification from the ... has released the Company,s CD-NP development program from clinical ... the FDA the finalized protocol for the Company,s planned ...
... Trials of Carfilzomib in Relapsed/Refractory Multiple Myeloma and Advanced ... 15 Proteolix, Inc. today announced that data from ... solid tumors will be presented at the 2009 Annual ... being held May 29 - June 2, 2009 in ...
Cached Biology Technology:The Concerned Shareholders of Biovail Say Biovail Has Misled Shareholders 2The Concerned Shareholders of Biovail Say Biovail Has Misled Shareholders 3The Concerned Shareholders of Biovail Say Biovail Has Misled Shareholders 4The Concerned Shareholders of Biovail Say Biovail Has Misled Shareholders 5The Concerned Shareholders of Biovail Say Biovail Has Misled Shareholders 6The Concerned Shareholders of Biovail Say Biovail Has Misled Shareholders 7Nile Therapeutics CD-NP Clinical Program for Acute Heart Failure Released From Clinical Hold by FDA 2Nile Therapeutics CD-NP Clinical Program for Acute Heart Failure Released From Clinical Hold by FDA 3Proteolix to Present Carfilzomib Clinical Data During the 2009 ASCO Annual Meeting 2Proteolix to Present Carfilzomib Clinical Data During the 2009 ASCO Annual Meeting 3
SlowFade Antifade Kit with DAPI...
...
... SAGE (serial analysis of ... genome-wide expression analysis. Expression profiles ... enough to detect low-abundance transcripts ... novel genes. The I-SAGE Kit ...
Mycoplasma tested...
Biology Products: