2008-10-12 - British Columbia, Canada: danneggiato sito dell’Eocene (fossil site damaged) Fossil hunters run amok and the B.C. government sits idle S

Reprinted from the Vancouver Sun, Published: Friday, October 10, 2008

While my writing is referenced, I did was not contacted for the article and did not provide comment.

A fossil bed of global importance is being irreparably damaged by commercial fossil hunters operating with provincial government approval, say leading scientists.

And scientists’ letters to a series of cabinet ministers and senior bureaucrats show that although the province is finally seeking someone to monitor the site, it has been aware of the concerns for almost a decade.

The operations take place under provincial regulations.

One letter likened what’s been going on to “wrapping fish in the Dead Sea Scrolls.”

The McAbee site between Kamloops and Cache Creek is a 51-million-year-old lake bed that yields exquisitely preserved fossils from the early Eocene epoch. Scientists say it holds answers critical to our present-day understanding of how plants and animals adapt to rapid climate change.

The Eocene is known for its diversity of large and exotic mammals, among them a carnivorous ungulate. The scientific value of the McAbee site, however, is its vast array of lesser-known plant, insect, fish and bird species that flourished when the world was much warmer and palms grew in what’s now Alaska.

Tree leaves, flowers and pollen fell into the water, sank into the mud along with now-extinct insect and fish species and, layer by layer over millions of years, created a stunning fossilized record of a lost world that may hold information crucial to survival in ours.

It’s the diversity of the site that permits scientists to collect large assemblages of fossil specimens preserved in vertical layers of shale — the site’s “stratigraphy” — and enables them to study their evolution over long periods of time.

The Eocene is vital for scientific study because it was in this time that the evolutionary ancestors of many modern animals, insects and plants first appeared.

But five of Canada’s leading paleontologists have written to the provincial government protesting that the stratigraphic integrity of the site is being destroyed by the use of heavy equipment in the hunt for individual specimens prized for commercial sale.

“We are writing to you to express our concern that an important British Columbia heritage site is currently being dismantled and sold to the highest bidder,” the scientists said in a March 2, 2007 letter to Charlie Wyse, the Liberal MLA for Cariboo South.

“This important fossil locality is currently under mineral claim by fossil dealers, has been extensively worked, and is being rapidly destroyed.”

The letter, one of a number going back as far as 2002, advised the province that individual fossil specimens from the McAbee site were for sale on the Internet.

The letter was signed by James Haggart, chair of the B.C. Paleontological Alliance, Rolf Mathewes of Simon Fraser University, James Basinger at the University of Saskatchewan, David Greenwood at Brandon University and Bruce Archibald, a PhD candidate at Harvard University.

Archibald, now a post-doctoral fellow at Simon Fraser University, has done extensive research on the McAbee fossils.

He wrote again on Sept. 11, 2008, this time to Stan Hagen, minister of agriculture and lands, to inform the government that he had just visited the McAbee site.

“I was absolutely shocked to see the amount of new destruction present,” Archibald wrote. “In fact, the richest beds containing the most finely preserved and most diverse fossils are now completely destroyed, or very nearly so. It is quite clear that degradation of the site has greatly accelerated since I visited it last year before the claimholders signed the current agreement with your ministry supposedly defining their appropriate stewardship of the site.”

shume@islandnet.com

© The Vancouver Sun 2008

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Additional info:

Site description: http://www.fossilmuseum.net/Fossil_Sites/mcabee.htm

Scientific info: by Heidi Henderson blog

Fossil tour: http://www.dll-fossils.com/

Fossils for sale: http://www.fossilscapes.com/plants/plantfossils1.htm

Ottobre 12, 2008 - Pubblicato da Giuseppe Buono | A - Paleontologia, G - America Northern, P - Geositi, P - Paleobotanica, T - Eocene, Z - Commercio illegale | fossili, Canada, Eocene, fossils, fossilien, British Columbia, danneggiato, fossil site, damaged | Nessun Commento

Non c’è ancora nessun commento.

TEENAGE KANE

CANADIAN ROCKIES: TYAUGHTON

SALMON: RETURN TO SENDER

We are all familiar with the image of salmon returning to fresh water, to the rivers of their youth, to spawn and complete their lifecycle, in fact, it is one of the staple images of British Columbia. As adults, we bring our children to witness this cycle, rushing to the banks of our local rivers to watch as the adults, keen in their fight for reproduction and survival, struggle to complete their epic journeys against currents and predators. Arriving as they do, year upon year, season upon season, it seems to us that this is how it has been since time immemorial.

But we now have evidence that migration to the sea may be a relatively recent behaviour. Fossil beds at Driftwood Canyon, near Smithers, contain large numbers of fossil salmonid remains from the Eocene age, approximately 45 million years ago. What is interesting is that the fossil beds are filled equally with both juvenile and larger adults.

If these salmon were heading off to sea in their juvenile form and returning to spawn as adults we would expect to find an abundance of larger carcasses in the lake sediments and relatively few juveniles. Given the equal numbers, we can conclude that the salmonids of the Eocene, lived out their lifecycle as a landlocked species, the way Kokanee do today.

PERFECT MORNING

PLAYING IN THE WAKE

NORTHERN BC

:: Dragon in the Rocks :: The Early Years of Mary Anning ::

Dragon in the Rocks. A Story Based on the Childhood of Early Paleontologist Mary Anning

Toronto: Owl/Greey de Pencier, 1992. [32] p.ISBN 0-920775-76-4

Mary Anning (1799-1847)/biography – Paleontology/England/19th century

Looking to inspire a young mind to the wonders of our world? Consider a new picture book for young readers from Owl Press. This lovely new book shares the early years of Mary Anning - a simple tale of curiosity and determination within the wider context of an historical geological discovery.

Twelve-year-old Mary Anning had always enjoyed collecting fossils with her father, an amateur collector, who before he died, taught her the techniques of chipping and separating fossils from rocks.

Mary's father also told her of a dragon skeleton he had once seen in a cave near their home in Lyme Regis on the southern coast of England. One day the opportunity arose to visit the cave herself, and subsequently she spent many months chipping, numbering and packing up the fossil pieces of the 26-foot-long ichthyosaur skeleton, which has now been on display at the Natural History Museum in London for nearly 200 years.

Although the story ends with the visit of important scientists to her home to see her rebuilt skeleton, children may well be inspired to learn more about the interests and life of this unsung heroine and about paleontology.

Looking for more inspiration on the significant finds of other young paleontologists... look to Tumbler Ridge and the discovery by Daniel Helm of a significant dinosaur trackway that inspired a community or to Vancouver Island and the tale of paleontology in beautiful Courtenay where the Trask family found one of BC's most famous marine reptiles.

Visit http://www.bcfossils.ca/ and learn more!

Sea Dragons of the Cretaceous

:: Free Fossil Lecture & Display this Victoria Day Long Weekend:

The Vancouver Paleontological Society hosts a talk this Saturday, May 2nd, 2PM, at the Vancouver Museum/Planetarium.

• The feature speaker will be Timon Bullard on Sea Dragons of Cretaceous Seas. Come hear about the large marine reptiles who swam our waters millions of years ago!Vancouver Museum/Planetarium, 1100 Chestnut Street (off Cornwall in Kitsilano).


• All talks are free and open to the public. Fossils will also be on display. Visit http://www.bcfossils.ca/ to learn about all the paleontological activities in BC.

Come on down and bring a friend!

:: ARMORED BEAST :: DESMATOSUCHUS ::

A detailed description of Desmatosuchus


:: Description of new material of the aetosaur Desmatosuchus spurensis (Archosauria: Suchia) from the Chinle Formation of Arizona and a revision of the genus DesmatosuchusWilliam Parker, PaleoBios 28(1):1–40, May 12, 2008Abstract: A new specimen of Desmatosuchus from northeastern Arizona (MNA V9300) preserves almost the entire vertebral column, the pelvis, and the majority of the armor carapace, allowing for an unprecedented detailed description of the taxon.



Articulation and reconstruction of the armor carapace demonstrates that previous reconstructions of Desmatosuchus are erroneous in the orientation and position of the lateral armor. Lateral plates of the anterior dorsal region possess low rounded knobs instead of developed spines.



The dorsal flange of the lateral plates of the dorsal region is longer than the lateral or ventral flange making the carapace transversely wider than previously thought. As a result, previous reconstructions articulate the lateral armor not only backwards but also on the wrong sides of the body. Posterior presacral vertebrae are extremely robust and possess fused ribs and the last presacral vertebra has been fused to the sacrum, a character that may be taxonomically useful.



A prefrontal bone is also present in Desmatosuchus, contrary to previous descriptions. Reinvestigation of the genus Desmatosuchus suggests that there are only two valid species, D. spurensis and D. smalli. The lectotype of Episcoposaurus haplocerus is referable to Desmatosuchus but indeterminate at the species level, and therefore represents a nomen dubium.



Accordingly, D. spurensis is reinstated as the type species of Desmatosuchus and the new Arizona specimen is assigned to this taxon. Acaenasuchus geoffreyi, a purported juvenile form of Desmatosuchus, is not referable to Desmatosuchus.

SHEEP: OVIS ARIES

 

HELICOPTER TRIP INTO TYAUGHTON

A Wee Beasty for Betsy

I was delighted to hear that one of our long lost friends and renowned paleontologist, Betsy Nicholls would be honored with a new namesake out of Alberta - a mighty marine hunter from our Cretaceous Seas... This newly described plesiosaur, Nichollsia borealis, has been named for the late Elizabeth (Betsy) Nicholls, a renowned paleontologist from the University of Calgary. Betsy holds a special place in the hearts of the paleo community, particularly those in Alberta and British Columbia who had the opportunity to work with her over the years.

She greatly broadened our understanding of the large marine reptiles who swam our ancient seas in describing one of the largest marine reptiles ever to be found. Alberta is the home of the dinosaurs, but it was Betsy’s work that opened up our eyes to the great marine beasties that continue to be unearthed over much of northern British Columbia…