Oldman Formation

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The Oldman Formation is the middle member of the Judith River Group, a major geologic unit in southern Alberta. The formation is widely recognized as bearing a great number of well preserved dinosaur skeletons, as well as other fossils.

Contents 1 Age 2 Relationship to other units 3 Paleontology 4 References

[edit] Age

The Oldman Formation was deposited during the middle Campanian.

[edit] Relationship to other units

The formation is bounded by the Foremost Formation below and the Dinosaur Park Formation above. It lies fully within Chron 33n.

[edit] Paleontology

List of Dinosaurs (not including Aves) found in the formation:

• Anchiceratops
• Centrosaurus
• Chasmosaurus
• Corythosaurus
• Daspletosaurus
• Dromaeosaurus
• Euoplocephalus
• Gorgosaurus
• Gryposaurus
• Lambeosaurus
• Ornithomimus
• Parasaurolophus
• Richardoestesia
• Saurornitholestes
• Stegoceras
• Struthiomimus
• Styracosaurus
• Tetragonosaurus
• Troodon

[edit] References

D.A. Eberth. 1996. Origin and significance of mud-filled incised valleys (Upper Cretaceous) in southern Alberta, Canada. Sedimentology 43:459–477