GANNETT GROUP--Red sandy mudstone, sandstone, and chert-pebble conglomerate; thin 
     limestone and dark-gray shale in upper part, more conglomeratic in lower part.
     Includes Smoot Formation (red mudstone and siltstone), Draney Limestone, Bechler
     Conglomerate, Peterson Limestone, and Ephraim Conglomerate.  Upper Jurassic fossils 
     have been reported from the Ephraim.  Kg
KOOTENAI FORMATION--Rusty thin-bedded sandstone, grayish-red soft claystone, white
     limestone, and chert-pebble conglomerate.  KJk
CLOVERLY FORMATION
  North and south Wyoming--Rusty sandstone at top, underlain by brightly variegated ben-
     tonitic claystone; chert-pebble conglomerate locally at base.  KJ, KJs, KJg, K@, MzPz
  Northeast Wyoming--Rusty to light-gray sandstone containing lenticular chert-pebble con-
     glomerate interbedded with variegated bentonitic claystone.  KJ
INYAN KARA GROUP--Rusty to light-gray sandstone containing lenticular chert-pebble con-
     glomerate interbedded with variegated bentonitic claystone.  Includes Fall River and 
     Lakota Formations.  KJ