HOME >> BIOLOGY >> NEWS
UF study: Barren Siberia, of all places, may be original home to animal life

GAINESVILLE, Fla. --- Trilobites, the primitive shelled creatures considered by many to be among the first animals to appear in the fossil record, may have originated in a place known today largely for its barren lifelessness: Siberia.

The finding is one of the conclusions of a two year study by geologists at the University of Florida and University of Kansas that is scheduled to appear next week in the online edition of the London Journal of the Geological Society.

By comparing separate, seemingly unrelated findings on trilobite evolution and geological history, UF's Joe Meert and KU's Bruce Lieberman concluded that precursors to modern continents began splitting off from a giant supercontinent at the South Pole about 580 million years ago, migrating north toward the equator for about 80 million years. The scientists' analysis suggests that a prominent theory holding that the continents moved far more rapidly is wrong. It also suggests that trilobites, the long-ago forbearers of crabs and lobsters, originated in present-day Siberia when it was a separate continent from Asia and located much farther south.

Trilobites probably evolved in Siberia millions of years before they appear in the fossil record, the analysis suggests. In Lieberman's words, their appearance may have supplied the "fuse" for the Cambrian radiation, the "big bang" of life that occurred about 543 million years ago.

"Siberia at the time -- it wasn't as cold and desolate place as it is today," Meert said. "It was in a better place (in the Southern hemisphere) but it's interesting that you can trace roots back."

The study is the fruit of a chance meeting that happened in spring of 2001. Meert was visiting KU to present his research. In what Meert called a "Reese's chocolate-and-peanut-butter moment," the geologists compared notes and realized they had come to the same conclusions about the origins and movement of the modern continents using vastly different methods one
'"/>

Contact: Joe Meert
jmeert@geology.ufl.edu
352-846-2414
University of Florida
7-Apr-2004


Page: 1 2 3

Related biology news :

1. Chernobyl study: Risk of thyroid cancer rises with radiation dose
2. UW study: Migrating birds offer insight into sleep
3. Comprehensive study: We know little about environmental effects on kids
4. UW study: Babys face lights up emotional center of new moms brain
5. UF study: World shark attacks sink again, may signal long-term trend
6. Fox Chase Cancer Center study: Novel DNA-repair gene mutation can cause resistance to cancer drugs
7. New study: percentage of babies born with intestinal birth defect growing in U.S., N.C.
8. MIT study: Hydrogen car no environmental panacea
9. UF study: Calorie restriction reduces age-related brain cell death
10. USF study: Nicotine antagonist relieves depression in children with Tourettes
11. Independent study: DEET products superior for fending off mosquito bites

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: