Arizona - New Mexico - Utah - US

Lying on top of the [Chinle Group] Chinle Formation over much of the western US is the Glen Canyon Group which consist of (except perhaps for its basal-most strata) Early Jurassic terrestrial formations outcrops in northern Arizona, parts of southeastern Utah and northwestern New Mexico.

It compromises the Wingate Sandstone, Moenave Formation, Kayenta Formation and Navajo Formation The first two are predominantly reddish eolian sandstones, the Kayenta Formation mainly alternates between a reddish \\\"sandy facies\\\"and a grey-blue \\\"silty facies\\\". The Navajo Formation is composed of white and red sandstones that form a caprock over much of the cliffs and plateaus of the region. Reptile bones are quite common in some portions of the group, especially the Moenave Formation and Kayenta Formation.


Dilophosaurus wetherilli - Arizona - Ceratosauria Halticosauridae - Jurassic Early Sinemurian ?Pliensbachian


Massospondylus carinatus - Arizona - Prosauropoda Massospondylidae - Jurassic Early Hettangian Sinemurian Pliensbachian



\\\"Massospondylus\\\" sp - Arizona - Sauropodomorpha Prosauropoda - Jurassic Early Hettangian ?Sinemurian



Sarahsaurus aurifontanalis - Arizona - Saurischia Sauropodomorpha - Jurassic Early Sinemurian Pliensbachian



Scelidosaurus harrisonii - ?Arizona [Lower Lias, Charmouth England] - Ornithischia Thyreophora - Jurassic Early Sinemurian



Scutellosaurus lawleri - Arizona - Ornithischia Thyreophora - Jurassic Early Hettangian



Segisaurus halli - Arizona - Theropoda Ceratosauria - Jurassic Early ?Sinemurian Pliensbachian



Seitaad ruessi - Utah - Saurischia Sauropodomorpha - Jurassic Early Pliensbachian Toarcian



Syntarsus kayentakatae - Arizona - Ceratosauria Podokesauridae - Jurassic Early Sinemurian Pliensbachian



Ammosaurus cf major - Arizona - Prosauropoda Plateosauridae - Jurassic Early ?Sinemurian Pliensbachian Toarcian



Ornithischian footprints - Arizona - Ornithischia - Jurassic Early Hettangian ?Sinemurian



Theropod footprints - Arizona - Theropoda - Jurassic Early Jurassic Early Hettangian ?Sinemurian Pliensbachian Toarcian



Described heterodontosaurid - Arizona - Ornithopoda - Jurassic Early Hettangian ?Sinemurian



Ornithischia indet. - Arizona - Ornithischia - Jurassic Early Hettangian ?Sinemurian



Prosauropod footprints - Arizona - Prosauropoda - Jurassic Early ?Sinemurian Pliensbachian Toarcian



Plateosaurus indet. - Arizona - Prosauropoda Plateosauridae - Jurassic Early ?Sinemurian Pliensbachian Toarcian



?Theropod footprints - Utah - ?Theropoda - Jurassic Early Sinemurian



Theropod footprints - Utah - Theropoda - Jurassic Early Toarcian



Ceratosaurid indet. - Arizona - Theropoda Ceratosauria - Jurassic Early ?Sinemurian Pliensbachian Toarcian



Theropod footprints - Utah Navajo Sandstone? - Theropoda - Jurassic Early Toarcian



Theropod footprints - Colorado - Theropoda - Jurassic Early Toarcian