Summerville Formation

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Summerville Formation
Stratigraphic range: Middle Jurassic
Type Geological formation
Region Southwestern United States
Country United States

The Summerville Formation is a geological formation in New Mexico, Colorado, and Utah of the Southwestern United States. It dates back to the Middle Jurassic.[1]

Vertebrate fauna[edit]


Theropod tracks geographically located in Utah, New Mexico, and Colorado, USA.[1]

Ornithodires reported from the Summerville Formation
Genus Species Location Stratigraphic position Material Notes Images


D. viaemalae[1]

Geographically located in Utah, USA.[1]

"Scapula, ulna, partial radius, [and] partial manus."[2]



Geographically located in New Mexico, USA.[1]

Later found to be indeterminate sauropod remains.[1]


P. saltwashensis[3]

Geographically present in Arizona.[3]

Includes the P. saltwashensis type locale.[3] Specimens housed at the University of Utah.[3] These tracks may actually be from the Morrison Formation.[3]


Geographically present in Arizona, near Summerville.[3] Also present in Colorado (Cactus Park, Furnish Canyon, Colorado National Monument) and Utah (Delmonte Mines, Starr Springs, Flaming Gorge, Ferron, Moab, Duchesne County).[3]

Summerville, Furnish Canyon, Cactus Park, Delmonte Mines, Starr Springs, Ferron, and Moab specimens are housed in the University of Colorado's Dinosaur Tracks Museum in Denver.[3] The Flaming Gorge and Colorado National Monument tracks remains in the field.[3] Ferron specimens are also housed at the University of Utah.[3]

See also[edit]


  1. ^ a b c d e f g Weishampel, David B; et al. (2004). "Dinosaur distribution (Middle Jurassic, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 537–538. ISBN 0-520-24209-2.
  2. ^ "Table 13.1," in Weishampel, et al. (2004). Page 261.
  3. ^ a b c d e f g h i j k Lockley, M.; Harris, J.D.; and Mitchell, L. 2008. "A global overview of pterosaur ichnology: tracksite distribution in space and time." Zitteliana. B28. p. 187-198. ISSN 1612 - 4138.