New species of fossilised wood found in Winton

Jul 01, 2014
New species of fossilised wood found in Winton
PhD Candidate Tamara Fletcher unearthing a 101 million year old log of silicified wood near Isisford, central-western Queensland. Photo: Steve Salisbury.

Palaeontologists have discovered a new species of fossilised wood in Winton, providing insight into dinosaur landscapes in central-western Queensland.

University of Queensland researchers have dated the fossils at 92 to 94 million years old and have used them to identify the nature of the ancient landscape.

UQ School of Biological Sciences PhD candidate Tamara Fletcher said wood fossils provided new information about outback Queensland during the early part of the Late Cretaceous Period.

"The grassy plains of central-western Queensland today are quite different from the forests that once existed there," she said.

"The wood fossils indicate that these forests were dominated by a previously unknown species from an ancient group similar to modern podocarps - a large family of evergreen trees and shrubs that includes the modern plum pine.

"Much like trees today, the growth rings in wood can provide a record of the climatic conditions that a tree experienced while it was alive.

"The wood fossils we found suggest this one wood species dominated the canopy in forests around where Winton is now, and that it was likely an area subject to flooding."

Ms Fletcher said most wood decayed without leaving a trace in the fossil record.

"Under the right conditions however, dissolved silica in the surrounding mud or sand can slowly permeate the wood," she said.

"The silica solution replaces the original cell walls, crystallising as quartz to form a fossil with a surprising level of detail.

"The process can be so exact that every detail of the wood's original surfaces is preserved, and sometimes even the internal cell structures and growth rings."

Study co-author Dr Steve Salisbury, from UQ's School of Biological Sciences, said the had been named Protophyllocladoxylon owensii in honour of the Mayor of Longreach Regional Council, Joe Owens.

"This fossilised is really solid stuff; sledge-hammers bounce straight off it," he said.

"It's tough, reliable and easy to find if you know where look—those qualities reminded us of Joe, who has been a strong supporter of our team's research in the area for over a decade."

The research is published online in the Review of Palaeobotany and Palynology.

Explore further: Super-charged tropical trees of Borneo vitally important for global carbon cycling

More information: Tamara L. Fletcher, David J. Cantrill, Patrick T. Moss, Steven W. Salisbury," A new species of Protophyllocladoxylon from the Upper Cretaceous (Cenomanian–Turonian) portion of the Winton Formation, central-western Queensland, Australia," Review of Palaeobotany and Palynology, Volume 208, September 2014, Pages 43-49, ISSN 0034-6667, dx.doi.org/10.1016/j.revpalbo.2014.05.004.

add to favorites email to friend print save as pdf

Related Stories

A functional forest ecosystem is more than just trees

Oct 23, 2013

In 2011, the University of Jyväskylä held an academic conference on the ecological restoration of forests. The conference was visited by 53 researchers from 10 European countries. Now the researchers' ideas and discussions ...

Australian builders unearth city fossil trove

Jul 16, 2013

Australian builders doing roadworks have uncovered a rare urban trove of crocodile and other fossils thought to be around 50 million years old, officials said Tuesday.

Recommended for you

US state reaches deal to keep dinosaur mummy

Oct 21, 2014

North Dakota reached a $3 million deal to keep a rare fossil of a duckbilled dinosaur on display at the state's heritage center, where it will serve as a cornerstone for the facility's $51 million expansion, officials said ...

Jerusalem stone may answer Jewish revolt questions

Oct 21, 2014

Israeli archaeologists said Tuesday they have discovered a large stone with Latin engravings that lends credence to the theory that the reason Jews revolted against Roman rule nearly 2,000 ago was because ...

Kung fu stegosaur

Oct 21, 2014

Stegosaurs might be portrayed as lumbering plant eaters, but they were lethal fighters when necessary, according to paleontologists who have uncovered new evidence of a casualty of stegosaurian combat. The ...

User comments : 0