SKU: 86444585427

Jurassic Underground

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Description

Jurassic UndergroundA desolate location in southeastern Wyoming, named Como Bluff, has a reputation as one of the best late Jurassic dinosaur fossil localities in the world. Late Jurassic is the time period from about 160 to 145 million years ago. The location was given the name Como Bluff in the 1800s when the Union Pacific Railway was being built through the area. In about 1865, examples of huge fossilized bones were sent to certain eastern US universities and museums

A desolate location in southeastern Wyoming, named Como Bluff, has a reputation as one of the best late Jurassic dinosaur fossil localities in the world. Late Jurassic is the time period from about 160 to 145 million years ago. The location was given the name Como Bluff in the 1800’s when the Union Pacific Railway was being built through the area.

In about 1865, examples of huge fossilized bones were sent to certain eastern US universities and museums and several distinguished vertebrate paleontologists traveled to Como Bluff where they found many specimens lying on the surface. Erosion of the Jurassic-age Morrison Formation, the host sedimentary strata, was the source. But, by 2010, after 140 years of surface activity by fossil collectors, there were no remaining fossils at the surface.

A Wyoming University-educated geologist, Mike Mackenzie, who was born and raised in southeast Wyoming, theorized that the best way to search for more Jurassic fossils at this locality would be to excavate in the Morrison Formation underground. Mike envisioned underground viewing points where visitors would be able to see cleared off and exposed dinosaur fossils in the sediments within which they were entombed.

This novel takes the reader underground where mining activity leads to a surprise discovery and unnerving encounters. A number of perceptions about dinosaurs will be questioned as explorers have thrilling and frightening adventures back in time and into dangerous Jurassic situations.

About the Author

R.V. Bailey was born and raised in the small coal mining town of Hanna, Wyoming, just 30 miles west of the world-famous dinosaur locality known as Como Bluff. After graduating from the University of Wyoming with a degree in geology, R.V. was appointed mine geologist for an underground uranium mine 35 miles north of Como Bluff. In that position, he developed a new theory on the deposition of uranium in the Eocene sand deposits, a theory which still stands worldwide today. Later, he carried out successful gold exploration in Alaska and, after closely observing killer whales, wrote a science fiction novel about them. Returning to Wyoming and continuing geologic studies, he decided to write about a concept he had conceived years ago: going underground to recover more fossils at Como Bluff. There were no more fossils to be found at the surface. His in-depth knowledge of underground mining, the terrain, and wildlife helped bring this novel to life. His interest in Como Bluff and dinosaur fossils grew through viewing the Morrison Formation in southeast Wyoming and while visiting museums and old excavation sites. R.V. has always been interested in dinosaurs, finding their size astounding.

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SKU: 86444585427

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W. Willard
Lexington, US
★★★★★ 5
I was shocked by how much my daughter's puppy enjoyed this toy!
I've bought two of these — one for my grand puppy to use when she's at my house, and another for her to keep at her house. I was shocked that she actually seems to enjoy playing with this toy! She hunts out all the bunnies and then brings the carrot to me to refill. I refill it, and then she takes the refilled carrot back to her spot and hunts them all out again. If I can't find one of the bunnies (because it's gotten stuck in the couch cushion, for example), I ask her "where's the bunny?" and she helps me find it! This dog is a ferocious chewer but she doesn't chew these toys! It's like she instinctively knows they are for hunting, not chewing. As a result, they have lasted a long time and provide hours of quality fun. Great value!
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Reviewed in the United States on April 7, 2026
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WhiteheadsArt
Massapequa, US
★★★★★ 5
My Iggies LOVE this toy. Buy it!!!!!
As a new dog mom to Italian greyhounds, I wasn’t sure if they’d like this, but it is their favorite toy!!!! They LOVE playing with the rabbits, chewing on them, squishing them, flinging them and chasing them. My one iggy likes to chew on the carrot and stick her nose in it when it’s empty. I find the rabbits around the house. So cute and seems to be well made. Definitely worth the cost.
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Reviewed in the United States on March 18, 2026
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Amazon Customer
Lowell, US
★★★★★ 5
Very cute and well loved dog toy.
I have two maltese rescue dogs. One if still a puppy and the other is almost 5 years old. The youngest one is a chewer and goes through toys removing whatever she can as soon as she can. This is a VERY cute toy and comes with the 4 cute bunnies inside. My older dog loves to take the bunnies and cuddle them in her bed. So far the chewer has not been able to take them apart and for that I am very pleased. Very well made, stiched well. I was reluctant at first to purchase because of price, but I believe this is good value for your money.
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Reviewed in the United States on February 1, 2026
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Sistabelle
Fort Morgan, US
★★★★★ 4
Cool toy.
Each animal has a squeaker so it makes it good for chewing and retrieving. The squeakers dont last long g enough I use it now to stuff other squeakers in. I won’t ut again.
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Reviewed in the United States on July 12, 2025
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mdj
Boise, US
★★★★★ 5
Best and cutest dog toy!
Drop shipped to my granddog! LOVED LOVED LOVED these!!!!
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Reviewed in the United States on May 23, 2026

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