• Camarasus skull in the cliff face, rafters on the Green River, McKee Springs petroglyphs

    Dinosaur

    National Monument CO,UT

Living in the Shadows of Dinosaurs

In addition to the dinosaurs, many other animals lived in the Morrison envirnoment including other reptiles, fish, amphibians, insects and even mammals. Many of these creatures, we know about from very limited and small fragements of bone material.

 
Artist rendition of Opisthias.

Artist rendition of Opisthias.

Walters & Kissenger, LLC

Reptiles

Dinochelys whitei
Dinochelys may have lived a life similar to that of modern river and pond turtles.

Glyptops plicatulus
Glyptops probably lived a life similar to that of modern turtles.

Hoplosuchus kayi
Hoplosuchus is a long-limbed, running, terrestrial crocodile.

Opisthias rarus
Opisthias rarus is a lizard-like reptile known as a sphenodont that reached a length of a foot or more.

Paramacellodus
Paramacellodus is a small lizard with short, blunt teeth.


 

Amphibians

Iridotriton hechti
The name of this Jurrasic Salamander means "rainbow newt" since it was found in the Rainbow Park area of Dinosaur National Monument.

Rhadinosteus parvus
This small Jurassic frog with a body length of about half an inch has only been found at Dinosaur.


 

Mammals

Glirodon grandis
Though it was the size rat, this Jurrassic mammal was not a rodent.


 
vetulonaia

Mollusks

Unionidae clams/Vetulonaia sp.
These freshwater clams are the the most abundant organism preserved in the Carnegie Quarry.


Did You Know?

Picture of anthropomorphic figure holding a circular shape pecked into a rock.

Do you know the difference between a petroglyph (pictured here) and a pictograph? Petroglyphs are images pecked into rock while pictographs are painted images. Dinosaur National Monument preserves both forms of Native American rock art.