HOME >> BIOLOGY >> NEWS
New Evidence From Dinosaur Footsteps Show Massive Herds Once Roamed Northern Alaska

Fairbanks, Alaska - A joint University of Alaska Fairbanks/Anchorage expedition team has discovered a significant variety of single dinosaur footprints and sets of prints, or trackways, on Alaska's North Slope.

Faculty and students from the University of Alaska Museum along with team members from the UAF and UAA geology departments collected casts and impressions of five different types of dinosaurs in the foothills of Alaska's Brooks Range during the summer 1998 field season. A total of 13 new track sites were located along a 75-mile stretch of the Colville River in National Petroleum Reserve-Alaska.

The presence of the newly discovered tracks, trackways and trampled surfaces are at least 25-million years older than the well-known dinosaur bone beds farther to the north. This discovery provides the first direct evidence that dinosaurs were numerous and diverse in the Arctic 90-110 million years ago.

Previously, there was only one, poorly documented trackway on the Alaskan Peninsula. "This summer, we found dinosaur tracks from meat and plant eating, duckbilled and armored dinosaurs," said Roland Gangloff, curator of earth sciences at the UA Museum. "Now we know dinosaurs flourished in Alaska even earlier than our previous work had indicated," he said.

The largest track is 18 inches long and contains three large toe impressions made by a carnivorous dinosaur, possibly a member of the tyrannosaur family.

"The most surprising thing was finding four-toed tracks suggestive of armored or horned dinosaurs," said Gangloff. "We also found tracks that showed the pebbly texture of the animal's skin, which are extremely rare."

Most of the tracks found are three-toed and represent the movements of the early duckbill dinosaurs or their ancestors. One of the tracks is yet to be identified. The mystery footprints, discovered and repeated throughout the middle of the trackway, are smaller, oval in shape and lack toe impressions.
'"/>

Contact: Debra Damron
fynews@uaf.edu
907-474-7122
University of Alaska Fairbanks/NOAA Sea Grant Program
14-Sep-1998


Page: 1 2

Related biology news :

1. Evidence builds for potential new cancer drug target
2. Evidence for sympatric speciation by host shift in the sea
3. Evidence for the impact of climate change on deep-sea biodiversity
4. Evidence for fat hormone target in brain
5. Evidence of nanobacterial-like structures found in human calcified arteries and cardiac valves
6. Evidence shows the heart has stem cells able to regenerate muscle tissue lost to disease, wear
7. Evidence for orangutan culture
8. Evidence suggests that standard smallpox vaccine offers long-term immunity
9. Evidence that adults stem cells differentiate like embryonic stem cells published in Nature
10. When Shewanella meets goethite: Evidence found of recognition between animate and inanimate objects
11. Evidence links protein damage to Parkinsons

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


(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: