HORIZON OF THE MARINE JURASSIC OF UTAH 



643 



Mexico of the occurrence of limestones and gypsum above a sand- 

 stone which he calls repeatedly lower La Plata, or Wingate. The 

 limestones and gypsum are correlated by him with the Todilto or 



Fig 8. — Flaming Gorge (McElmo?) in Water Pocket Canyon, near Henry 

 Mountains, Utah. The knobs of sandstone in the foreground overlie gypsum beds 

 and are part of what Emery correlates as Navajo. 



Photo *j L. y. Zolla- 



Fig. 9. — Detail of sandstone beds of McElmo shown in Fig. 8 above 



middle La Plata. In many of the sections referred to by Lee no 

 sandstone at all is mentioned above the limestones and gypsum. 

 In a few an overlying sandstone is described as probably upper 

 La Plata or Navajo, but at no point does it seem, from his descrip- 

 tions, to closely resemble typical Navajo. 



