The Kayenta Formation in UK was from the Sinemurian to Pliensbachian Age, while the Kitadani Formation in Japan was from Aptian to Albian Age.
The Kayenta Formation is a geologic layer in the Glen Canyon Group that is spread across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah. 
United States 
This rock formation is particularly prominent in southeastern Utah, where it is seen in the main attractions of a number of national parks and monuments. 
