LATE CRETACEOUS

HELL CREEK FORMATION

Lambeosaurs and small ornithopods

A lambeosaurine hadrosaur may have lived in the Hell Creek Formation the evidence is based on teeth. If present at Hell Creek they are rare visitors migrating through, lambeosaurs may have been adapted to different environments. Lambeosaurines in Asia survived into the final Cretaceous so their presence in North America would not be a surprise.

mouse over diorama pics for figure information.

Parasaurlophus walkeri material in the Hell Creek Formation. A lambeosaurine hadrosaur that may have lived in the Hell Creek Formation however limited evidence makes this unclear.

Schliech Triceratops and bellowing Parasaurlophus

If lambesaurines were passing through the coastal wetlands are not their prefered environment.

Carnegie and Wild Safari Parasaurlophus Leptoceratops

Lambeosaur bonebeds in east Asia exist containing rleatives of Parasaurlophus and are contemporary with Hell Creek so visitors are possible.

Thescelosaurus was a heavily built bipedal animal, probably herbivorous. It grew to between 8 to 13 ft in length on average. It had sturdy hind limbs, small wide hands, and a head with an elongate pointed snout.

GeoWorld Thescelosaurus

The hadrosaurs and Thescelosaurus preferred habitats in close proximity to rivers where horned dinosaurs are uncommon.

Retro Classic Hypsilophodon

 

 

 

 

 

It is traditionally described as a hypsilophodont, but more recently recognized as distinct animal.

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