Navigation Links
Evidence is weak for tropical rainforest 65 million years ago in Africa's low-latitudes
Date:10/21/2010

Details sparse, but big picture emerges for past 65 million years

Paleobotanical data for Africa are generally meager and uneven for the Cenozoic, according to Jacobs and her co-authors.

In an original series of maps, they chart each Cenozoic Africa paleobotanical locale described in the published research to date. There are a mere 82 sites in all. Most of the sites date to 50 million years ago. Fewer date to 20 million, 30 million, 10 million and perhaps most important 2 million years ago, when the human family was evolving.

"Africa is disappointingly undersampled," say Jacobs and her colleagues. "This vast continent, roughly three times the area of the United States, has so far been documented by only a handful of Paleogene plant and vertebrate localities, and it has a Neogene record heavily biased toward the depositional basins of the East African Rift."

Shift from descriptive to analytic approach driven by holistic view

For a continent so important for its role in the evolution of mammals, the scarcity of plant fossil data stands in sharp contrast.

"As impressive as is the contemporary mammalian diversity of Africa, it is dwarfed by that of the Cenozoic," write the volume's editors, paleozoologist Lars Werdelin, the Swedish Museum of Natural History, and paleontologist William Joseph Sanders, the University of Michigan. Africa today represents 20 percent of the world's land mass, is the only continent to occupy both the north and south temperate zones, and is home now to more than 1,100 mammalian species, they write in the introduction.

Africa's paleobotanical record is key to a holistic understanding of ancient mammals, says H.B.S. Cooke in the preface. A mammal expert, Cooke was editor of the earlier 1978 scientific reference, "Evolution of African Mammals" (Harvard University Press).

"Most striking over the past years has been a shift in studying fossils from a larg
'/>"/>

Contact: Margaret Allen
mallen@smu.edu
214-768-7664
Southern Methodist University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Genetic evidence for avian influenza movement from Asia to North America via wild birds
2. Mounting evidence shows health benefits of grape polyphenols
3. New evidence that people make aspirins active principle -- salicylic acid
4. Evidence of the Lost World -- did dinosaurs survive the end Cretaceous extinctions?
5. University of Leicester archaeologist uncovers evidence of ancient chemical warfare
6. New study provides further evidence that apple juice can delay onset of Alzheimers disease
7. New lab evidence suggests preventive effect of herbal supplement in prostate cancer
8. DNA evidence is in, newly discovered species of fish dubbed H. psychedelica
9. Polar research reveals new evidence of global environmental change
10. Evidence of earliest known domestic horses found in Kazakhstan
11. Researchers find the earliest evidence of domesticated maize
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Evidence is weak for tropical rainforest 65 million years ago in Africa's low-latitudes
(Date:1/22/2015)... NXTD and NXTDW) a biometric authentication company focused on ... Wocket™ smart wallet at CES 2015 in Las Vegas ... the "11 Hot Products at CES" in a review published in Wired.com, ... Newseveryday.com and "The top 10 gadgets from CES 2015" by Danny ...
(Date:1/22/2015)... , Jan. 21, 2015  Analyst Report Issued by Small Cap ... report showed that planet-wide, transactions at merchants on the leading ... total number of credit, debit, and prepaid cards reached 6.54 ... victims of fraudulent card usage in 2012, and credit and ...
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ... addition of the "Global Wearable Technologies Market ... Share, Overview, Trends and Forecast 2014-2020" report ... Technologies are smart devices that can be worn ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2
... by a scientist at Fred Hutchinson Cancer Research Center ... common form of muscular dystrophy. The findings, published online ... the team,s series of groundbreaking discoveries begun in 2010 ... FSHD., The team, co-led by Stephen Tapscott, M.D., ...
... just catch our eyes, they catch those of pollinators like ... Because plants need to maximize the opportunity for pollinators to ... flowering can have profound effects on flower, fruit, and seed ... major driving forces of flowering are external factors such as ...
... at the U.S. Department of Energy,s (DOE) SLAC National ... of the electrons from xenon atoms, creating a "supercharged," ... The findings, which defy expectations and theory, could ... needed to study extreme states of matter or ward ...
Cached Biology News:Researchers discover 2 genetic flaws behind common form of inherited muscular dystrophy 2CSHL-led team discovers new way in which plants control flower production 2CSHL-led team discovers new way in which plants control flower production 3Study provides recipe for 'supercharging' atoms with X-ray laser 2Study provides recipe for 'supercharging' atoms with X-ray laser 3
(Date:1/22/2015)... 2015   GenoSpace , a precision medicine software company that ... broad use of genomic, imaging and other biomedical data in ... Michelle Munson , CEO of Aspera, an IBM Company, to ... http://photos.prnewswire.com/prnh/20150122/170713 "We are pleased to ...
(Date:12/24/2014)... NEW YORK , Dec. 24, 2014 PlasmaTech ... care in critical areas, announced the closing of an underwritten ... to purchase up to an aggregate 3,500,000 shares of common ... $.01 per warrant.  The warrants have a per share exercise ...
(Date:12/24/2014)... GMO corn cases filed across the United States, ... of being consolidated in a Kansas federal court for pretrial ... 162 Corn Litigation, MDL No. 2591 in the U.S. District ... Syngenta GMO corn multidistrict litigation (MDL) has been handed over ...
(Date:12/24/2014)... New York (PRWEB) December 23, 2014 According ... the Long Island Affiliate of ITRA Global, the national office ... but steady recovery. This is evidenced by the third ... strong stock market. Low energy costs have held inflation ...
Breaking Biology Technology:GenoSpace Expands Board with Appointment of Michelle Munson 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3
... GPRO ) announced today that the Company will ... 31, 2008 at approximately,4:00 p.m. Eastern Time (ET). The ... p.m. ET. Hank Nordhoff, chairman and chief,executive officer, and ... will host the call., The conference call will ...
... merit and part of its overall strategy to, cripple PSC, force PSC to ... for failing to provide funding to ... PSC., -- ... FDA approval for its lead vaccine product, FluBlok, ...
... , - 1st Half-Year Sales Up 16%, - Revision Upwards of 2008 Sales Growth Guidance: (greater than or equal,to)12%, EUR millions ... 2008 08/07 ... ... 20.5 72 23.2 72 13 26.8 71 15 ...
Cached Biology Technology:Gen-Probe Announces Webcast of Second Quarter 2008 Earnings Conference Call 2Protein Sciences Responds to Emergent BioSolutions Lawsuit 2Protein Sciences Responds to Emergent BioSolutions Lawsuit 3Protein Sciences Responds to Emergent BioSolutions Lawsuit 4Protein Sciences Responds to Emergent BioSolutions Lawsuit 5Stallergenes: Q2 2008 Sales up 18% Revision Upwards of 2008 Sales Growth 2
... Agencourt AMPure is a ... that requires no sample transfer, ... efficiently purifies small and large ... or 384-well microplates. Agencourt AMPure ...
... These 1.5L PYREX trypsinizing flasks ... tissue samples into cell suspensions ... Heavy beaded neck accepts cotton ... vigorous agitation. • Height of ...
... kit for stabilizing 50g of purified RNA samples ... Kit delivers all of the advantages and applications ... addition the RNA can be used for enzymatic ... product has been optimised for the stabilization of ...
... PYREX Fernbach-style culture flasks have triple baffles ... bottom to achieve maximal oxygen transfer to ... marking spot., A wide range of optional ... Polypropylene colored caps for ease of ...
Biology Products: