HOME >> BIOLOGY >> NEWS
Earliest Modern Tree Lived 360-345 Million Years Ago

(Blacksburg, Va., April 22, 1999) -- Consider the architecture of modern trees -- the woody strength that builds in rings to support greater and greater height and weight, the protective bark that shields the cells that conduct water and nutrients from the earth to the farthest leaves, and the collars of extra wood that surround the bases of each branch and the way internal layers of wood dovetail at branch junctions to prevent breakage. It must have taken millions of years to evolve such a successful structure.

If it did, it happened about 360 million years ago. Archaeopteris, an extinct tree that made up most of the forests across the earth in the Late Devonian period, had the same structure as modern trees, report three scientists in the April 22, 1999 issue of Nature ("Archaeopteris is the earliest known modern tree," by Brigitte Meyer-Berthaud, Stephen E. Scheckler, and Jobst Wendt.).

After decades of operating with a model of what the tree looked like based on imprints of the leaves in fossil rocks and bits of fossilized wood, last year Meyer-Berthaud of the Laboratoire de Paléobotanique Université Montpellier in France and Scheckler, professor of biology and geological sciences at Virginia Tech in the United States, were able to examine hundreds of pieces of Archaeopteris and study the evidence that the plant was the first modern tree. It happened like this.

Almost a decade ago, Wendt, a paleontologist with the Geologisch-Paläontologisches Institut in Tübingen, Germany, was studying marine deposits in the Morocco Sahara desert, where he has been mapping marine rock formations for many years. While looking for connecting formations at a depth that would be from the Devonian period, he found logs that had been buried in ancient marine sediment that would have been hundreds of miles off the ancient coastline but were now exposed by shifting desert sands.

In 1991, Wendt reported his findings in a paper published in the J
'"/>

Contact: Stephen E. Scheckler
stephen@vt.edu
540-231-6653
Virginia Tech
22-Apr-1999


Page: 1 2 3 4

Related biology news :

1. Earliest evidence of hereditary genetic disorder discovered by Hebrew University researchers
2. Earliest evidence of humans affecting aquatic ecology in Canada, United States
3. Earliest European modern humans found
4. Earliest evidence of lemurs discovered in Pakistan, far from their current home, Science reports
5. Earliest human ancestors discovered in Ethiopia
6. Earliest chewing herbivore ever found spurred vertebrate life on land, scientists find
7. Evidence For Earliest Maritime-Based Societies In The Americas Reported In Science Magazine
8. Modern global warming more damaging than in the past
9. Modern blood vessel measurements test belief that magnetic fields can influence blood flow
10. Modern-day butterflies invented by bats
11. E. Coli Genome Reported: Milestone Of Modern Biology Emerges From Wisconsin Lab

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


(Date:3/24/2017)... , March 24, 2017 The Controller General ... Controller Mr. Abdulla Algeen have received the prestigious international IAIR ... Continue Reading ... ... picture) and Deputy Controller Abdulla Algeen (small picture on the right) have ...
(Date:3/23/2017)... , March 23, 2017 The report "Gesture Recognition ... Biometric), Industry, and Geography - Global Forecast to 2022", published by MarketsandMarkets, the ... a CAGR of 29.63% between 2017 and 2022. ... ... ...
(Date:3/22/2017)... 2017   Neurotechnology , a provider of ... announced the release of the SentiVeillance 6.0 ... facial recognition using up to 10 surveillance, security ... The new version uses deep neural-network-based facial detection ... utilizes a Graphing Processing Unit (GPU) for enhanced ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... , ... October 12, 2017 ... ... announces publication of a United States multicenter, prospective clinical study that demonstrates ... point-of-care diagnostic test capable of identifying clinically significant acute bacterial and viral ...
(Date:10/11/2017)... ... October 11, 2017 , ... At its national board meeting ... I. Sheikh, the co-founder, CEO and chief research scientist of Minnesota-based Advanced Space ... membership in ARCS Alumni Hall of Fame . ASTER Labs is a ...
(Date:10/11/2017)... ... 2017 , ... Proscia Inc ., a data solutions ... “Pathology is going digital. Is your lab ready?” with Dr. Nicolas Cacciabeve, Managing ... how Proscia improves lab economics and realizes an increase in diagnostic confidence.* ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... implantation and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... and maternal age to IVF success. , After comparing the results from the ...
Breaking Biology Technology:
Cached News: