Hell Creek Dinosaurs
Fossil Sites
 
Hell Creek Dinosaurs
(Cretaceous)


Also see: Hell Creek Formation

 

Theropoda

  • Coelurosauria
    • Paronychodon lacustris (common)
    • Ricardoestesia (common)
  • Tyrannosauroidea, Tyrannosauridae
    • Tyrannosaurus rex
    • Nanotyrannus lancensis (some believe to be a juvenile Tyrannosaurus)
  • Ornithomimosauria
      • Ornithomimidae
        • Ornithomimus sp.
  • Maniraptora
    • Caenagnathidae
      • Chirostenotes sp.
      • Elmisaurus elegans (putative Chirostenotes)
    • Troodontidae
      • Troodon sp.
    • Dromaeosauridae
      • cf. Dromaeosaurus
      • Velociraptorinae = (Saurornitholestes)
    • Avisauridae
      • Avisaurus archibaldi

Ornithischia

  • Ankylosauria
    • Ankylosauridae
      • Ankylosaurus magniventri
    • Nodosauridae
      • Edmontonia sp.
  • Pachycephalosauria
    • Pachycephalosauridae
      • Dracorex hogwartsia
      • Pachycephalosaurus wyomingensis
      • Sphaerotholus bucholtzae
      • Stygimoloch spinifer
  • Ceratopsia
    • Leptoceratopsidae
      • cf. Leptoceratops sp.
    • Ceratopsidae, Chasmosaurinae
      • Torosaurus latus
      • Triceratops horridus (very common)
      • Triceratops prorsus (may be synonymous with Triceratops horridus)

Ornithopoda

    • Bugenasaura infernalis
    • Thescelosaurus neglectus
  • Hadrosauridae, Hadrosaurinae
    • Anatotitan copei
    • Parasaurolophus walkeri
    • Edmontosaurus annectens
    • Edmontosaurus regalis
Also see: North Dakota Stratigraphy