Rock unit
Hell Creek Formation
29 dinosaur genera in Omnisaura with fossils from the Hell Creek Formation, oldest first. See all rock units.
- DromaeosaurusMatthew and Brown 1922
- ParonychodonCope 1876
- PectinodonCarpenter 1982
- RichardoestesiaCurrie et al. 1990
- EdmontosaurusLambe 1917
- AlbertosaurusOsborn 1905
- CaenagnathusSternberg 1940
- ChirostenotesGilmore 1924
- CitipesFunston 2020
- EdmontoniaSternberg 1928
- GorgosaurusLambe 1914
- OrnithomimusMarsh 1890
- OrodromeusHorner and Weishampel 1988
- PachycephalosaurusBrown and Schlaikjer 1943
- SaurornitholestesSues 1978
- SphaerotholusWilliamson and Carr 2003
- StegocerasLambe 1902
- ThescelosaurusGilmore 1913
- TorosaurusMarsh 1891
- TriceratopsMarsh 1889
- TroodonLeidy 1856
- TyrannosaurusOsborn 1905
- AcheroraptorEvans et al. 2013
- AnkylosaurusBrown 1908
- AnzuLamanna et al. 2014
- DakotaraptorDePalma et al. 2015
- LeptoceratopsBrown 1914
- NanotyrannusBakker et al. 1988
- TrierarchuncusFowler et al. 2020