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> Arctic Dinosaur Ecosystem: North Slope, Alaska

Dinosaur Toe Bone


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Description: The bone half extracted from the matrix of the Liscomb quarry appears to be a dinosaur toe bone. After talking with Tony and Thomas, it appears this bone is quite small. If the dinosaur lived long enough to reach adulthood, the bone could reach the size of an average man's foot.

Liscomb Fossil


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On: 1156322127

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Description: While Paul measured some sections adjacent to the Liscomb quarry, Dave and I located some bones near the water's edge. This photo shows a bone just emerging from the soft matrix.

Predatory Snails


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On: 1156321811

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Description: Dave found some Cenozoic sea shell fossils that told a neat story. Some of the shells had a neat hole drilled through them. Dave explained the hole was from the Moon snail, which attached itself to its prey and bore a hole through shells to reach the flesh.

Mike with Cretaceous Wood


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Description: Mike holds a 65-70 million year old piece of coalified wood. This wood was originally transported during a flood during the time of the dinosaurs and quickly buried. Since tree size is somewhat dependent upon temperature, this large piece of wood suggests this part of Alaska was much warmer in the past.

Paul Digging Trench Ne...


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Description: Dr. Paul McCarthy (University of Alaska - Fairbanks) digs a trench through lose sediment so he can expose the bedrock below. Once the trench is complete, he will measure the thickness of the layer and describe its composition and features.

A Typical August Day o...


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On: 1156321019

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Description: Almost every morning on the Colville River resembles this photo of Dr. Paul McCarthy. When the rain and fog are this thick, it is necessary to wait for the Sun rise higher and warm things up a little.

Midnight Moon at 70 De...


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Description: Pete, Doloris, and I spent the evening buring things that needed burning. It was the finest evening I experienced on the North Slope. This photo of a third quarter moon was taken exactly at midnight.

Dave Casting Gill Net


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On: 1156320334

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Description: Our main source of food during the field experience is dehydrated food which happens to contain entirely too much sodium for any human to consume in a lifetime. Fortunately, Dave brought a gill net to snag some fresh fish from the river.

Pete and Doloris Working


Uploaded by: Jason_Petula

On: 1156319988

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Description: Pete and Dolores scramble over some muddy talus as they make their way back to their boat.

Pete Reflecting Paul


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On: 1156319815

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Description: Graduate student Peter Flaig (University of Fairbanks - Alaska) is talking with Dr. Paul McCarthy about the day's work. A close look at Pete's sunglasses reveals Paul and the landscape surrounding the North Camp.

Burning Waste


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On: 1156319314

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Description: Nothing brings a group of men (and woman) together more than burning stuff. We burned many interesting things because we wanted to keep smells from camp to a minimum so bears stayed away. I am sure most can guess why we prefer standing upwind.

Napping on Bluff


Uploaded by: Jason_Petula

On: 1156318306

File Size: 45972

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Description: The Dino Team has been working in extremely difficult conditions and it finally took its toll. After a quick lunch of pilot bread and trail mix, everyone become intoxicated with sleep. Unfortunately, this nap was only five minutes in duration because the team work up when I snapped the photo.

Toe Bone


Uploaded by: Jason_Petula

On: 1156317992

File Size: 36135

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Description: This is a toe bone found in the float of the Kikak-tegoseak quarry. Constant cycles of freezing and thawing force bone upward toward the surface. Then, the bone moves downward from the bedrock due to gravity.



Uploaded by: Jason_Petula

On: 1156265548

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Description: The dinosaur footprint discovered by Paul does not show well on film. I added a red line to show the dinosaur footprint which allows you to appreciate the size of the animal creating the depression. Tony's hands show the approximate diameter of the footprint.

Jason Sitting on Boat Rim


Uploaded by: Jason_Petula

On: 1156177170

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Description: Jason sits on the rim of one of the inflatable boats used by the North Camp. Dave is working with Pete in the background on getting that boat's motor working. It seems the motors are very sensitive to temperature changes.

Jason Pointing to Nasa...


Uploaded by: Jason_Petula

On: 1156176613

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Description: Jason points to the nasal cavity of a pachyrhinosaur. This newly discovered skull has the team excited because it appears to be intact. The skull is presently upside down, so the brush sits atop the upper jaw. All efforts focus on extracting this skull from the bluff before the field season closes.

Bear Print


Uploaded by: Jason_Petula

On: 1156175779

File Size: 96351

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Description: Many bear prints are located near camp. Next to this print, is a smaller set of prints. Dolores and Pete saw a grizzly cub so it is easy to assume the prints are a mother and her cub.

Caribou Lounge


Uploaded by: Jason_Petula

On: 1156174853

File Size: 65088

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Description: The Caribou Lounge is our recently remodeled 5000 sq. ft. bathroom complex. Although it is chilly at times, it does provide beautiful views of Alaskan flora and fauna.

Paul Climbing Bluff


Uploaded by: Jason_Petula

On: 1156174189

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Description: Dr. Paul McCarthy (University of Alaska - Fairbanks) climbs a steep bluff to collect sediment samples. Analysis of the sediments will allow Paul to interpret the paleoenvironment of this area.

Tony Pointing to Newly...


Uploaded by: Jason_Petula

On: 1156065484

File Size: 74807

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Description: Tony points to a newly discovered dinosaur footprint found by Dr. Paul McCarthy about one mile up river from the Kikak-tegoseak quarry. The impression, not visible in this photo, suggests the land was dry enough to support movement of large animals.

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