Navigation Links
Rodents were diverse and abundant in prehistoric Africa when our human ancestors evolved
Date:12/21/2010

ay the authors. Just how much isn't known, though, because the quantity of rodent fossils being discovered far exceeds the handful of scientists who specialize in identifying and studying the specimens.

That diversity continues to expand. The last exhaustive analysis of Africa's rodents was carried out by R. Lavocat in 1978. At that time scientists recorded 54 genera, 76 fewer than those documented by Winkler, Denys and Avery in their analysis.

Winkler and her colleagues summarize the distribution and ecology of existing rodent families, as well as the systematics, biochronology and paleobiogeography of rodent families in Africa's fossil record. The diversity they document reflects "the wide variety of habitats present on the continent" and paints a picture of Africa's paleoecology.

Given the huge rodent diversity in modern Africa, "it is likely that such an extensive fauna was also present in the past," the scientists write.

Tremendous diversity reflects wide variety of habitats

An example of that relationship is the scaly-tailed flying squirrel, an exclusively African group of forest-dwelling rodents that are not related to true squirrels. They are well known from about 18 million to 20 million years ago in eastern Africa, Winkler says, suggesting the presence of closed habitats, such as forests. That corroborates other evidence of forests from fossil animals, plants and geology, she says.

"Although there are even older scaly-tailed flying squirrels known from the currently arid regions of northern Africa," says Winkler, "they do not appear to have been gliders, as are most current forms, and the question of when members of the group first developed gliding locomotion still remains."


'/>"/>

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

Page: 1 2 3

Related biology news :

1. Scientists successfully use human induced pluripotent stem cells to treat Parkinsons in rodents
2. Why Israeli rodents are more cautious than Jordanian ones
3. Small rodents encourage the formation of scrubland in Spain
4. Consumers in European countries appreciate grain healthiness in diverse ways
5. Diverse wheat tapped for antifungal genes
6. Scientists identify Ecuadors Yasuni National Park as one of most biodiverse places on earth
7. Research synthesis shines light on several management options after fires in diverse ecosystems
8. New book plants seed for biodiverse food production
9. Diverse landscapes are better: Policymakers urged to think broadly about biofuel crops
10. Diverse landscapes are better: Policymakers urged to think broadly about biofuel crops
11. New way to generate abundant functional blood vessel cells from human stem cells discovered
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Rodents were diverse and abundant in prehistoric Africa when our human ancestors evolved
(Date:8/6/2015)... Calif. , Aug. 6, 2015  Today, ... will visit Crossmatch ™ to learn firsthand ... and protect data. Crossmatch is a world leader ... technologies and expertise are helping federal agencies and ... and security.   "The vast majority ...
(Date:8/5/2015)... ALBANY, New York , August 5, 2015 /PRNewswire/ ... new market report titled "Facial Recognition Market - Global ... - 2022", the global market for facial recognition is ... market is driven by increased demand for surveillance systems ... to the rising number of crimes and terrorist activities ...
(Date:8/3/2015)... Aug. 3, 2015 Synaptics, Inc. (Nasdaq: ... today announced that members of the executive management team ... Crest Global Technology Leadership Forum on Tuesday, August 11, ... be held at the Sonnenalp Resort in ... may include forward-looking information. An audio webcast of the ...
Breaking Biology News(10 mins):Rep. Honda to Visit Crossmatch in Redwood City 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 3Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 4Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 5Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 6
... OH (October 26, 2009) Inspired by recent breakthroughs ... announced a major fundraising initiative entitled Research to Reality: ... earmarked to accelerate the progress of crucial research, and ... Black, whose niece Courtney lost her battle with Rett ...
... Millions of children in the United States between the ages ... vitamin D, according to a large nationally representative study published ... an editorial. The study, led by Jonathan Mansbach, ... of vitamin D levels in U.S. children. It builds on ...
... The remarkable eyes of a marine crustacean could inspire ... a new study from the University of Bristol published today ... the study are found on the Great Barrier Reef in ... science. They can see in twelve colours (humans see ...
Cached Biology News:IRSF receives $1 million matching gift 2IRSF receives $1 million matching gift 3Latest analysis confirms suboptimal vitamin D levels in millions of US children 2Mantis shrimps could show us the way to a better DVD 2
(Date:8/27/2015)... Aug. 27, 2015 The National Necrotizing ... eyes—and life—were saved by doctors at Vanderbilt University Hospital ... NNFF, NovaBay Pharmaceuticals and Dr. John Crew , ... at Seton Medical Center in Daly City, ... a breakthrough approach, pioneered by Dr. Crew, that had ...
(Date:8/27/2015)... Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced its results ... complete second quarter financial statements and MD&A have been filed on ... per shareThree-months ended , Six -months endedJune 30 , June 30 ... 2014 Revenue , 4,709 , 2,459 ... 1,656 , 56 , 3,188 , ...
(Date:8/27/2015)... GlassesOff (OTCBB: GLSO), a visual neuroscience technology company ... system, announced today a partnership with eight-time All-Star, ... to develop a new mobile app designed for professional and ... performance. Vision is the inception of every move ... or blocking a pass. The critical impact vision speed has ...
(Date:8/27/2015)... ... 2015 , ... METTLER TOLEDO's web-based EasyFinder™ tool ... to a manageable shortlist of bench and floor scales and terminals. Specifying a ... with the customer’s industry and application. , Side-by-side product comparisons and an ...
Breaking Biology Technology:Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 2Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 3BIOREM Reports $718,000 Net Earnings for the Second Quarter 2BIOREM Reports $718,000 Net Earnings for the Second Quarter 3Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 2Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 3METTLER TOLEDO Updates Online Scale Selection Tool 2
... biological agents that could be used for bioterrorist attacks has ... OpGen Inc. , a Madison based bio-informatics company that ... of the most infectious bacteria, Francisella tularensis, is a causative ... or deer fever. The bacterium is naturally found in rodents, ...
... MADISON, Wis. -- Third Wave Technologies Inc. ... of Pathology (AFIP) has selected the company's Invader ... genetic screening. , ,AFIP, the central reference laboratory for ... Department of Veterans Affairs, will use Invader to screen ...
... leader in the total number of business incubators located ... for new job creation as well, according Thomas Lyons, ... who recently addressed an audience at the Wisconsin ... the MGE Innovation Center , a business incubator ...
Cached Biology Technology:OpGen Database Helps to Reduce Bioterrorist Threat 2Armed Forces Institute of Pathology Adopts Third Wave's Invader Screen 2Business Incubators Grow Economy and Jobs 2Business Incubators Grow Economy and Jobs 3
... Mini thermal cycler is a compact instrument for ... ml tubes, 12 x 0.5 ml tubes, or ... uses a thumbwheel to adjust height and pressure ... Peltier heat pumps provide excellent thermal performance, and ...
... Dyad thermal cycler is a flexible ... chassis accommodates a variety of interchangeable ... hold different types and numbers of ... with point-and-click navigation. Peltier heat pumps, ...
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
For demonstration of Helicobacter pylori...
Biology Products: