690 R. W. RICHARDS AND G. R. MANSFIELD 
in the formation the limestone that normally underlies the phos- 
phate shales and has hitherto been included in the Park City 
formation (rob) (19d). 
The following section was measured at the type locality. 
GEOLOGIC SECTION OF BEDS ExPpOsED ON NoRTH SIDE OF WELLS CANYON, 
IDAHO 
WELLS FORMATION 
1) FEET 
Limestone, light brownish-gray, sandy Squamularia or Composita, 
possiblysProductus ‘crimoidsstems) me tds ae ee 
Chert::bluish=erays, 5. F aos as ory rte eee stele cue ee ae ake hence ae I 
Limestone, ight: brownish-gray, sandy...) 0). oes ee re a 44 
(2) 
Ponce aledicrs sia: Sa Hee ok oor Meicecle olan ease de gs ase eve fetes ore w core est eeita ous hope een 172 
Sandstone, gray, calcareous, fine-grained in loose blocks and thin beds of 
quartzite) ors chert: Cuic.a se eile ges ecg ee ere ee NS 
Concealed ois. eae Stele tre cha hace te ater tee Une ate ns tease ee ncanas 50 
Sandstone, whitish, soft, in loose blocks, weathers like limestone, 
includes small quartz-lined geodes, poorly exposed, and partly 
represented by sandy soil and small fragments............... 350 
Limestone, light bluish-gray, earthy with considerable dark chert...... 230 
Sandstone, yellowish to red, in large blocks weathered rounded........ 100 
Sandstone, whitish trathensolt ese. csccrermi camer oer ears 150 
Quartzite, white, weathers pink to red, in large loose slabs, laminated 
Aandcross-Deddede: +4 ese paceman a oe eee 200 
[Eimestone, in partrclear, mipart) Cherty asc. ceil ae eee 200 
(3) 
Limestone, dark gray with large chert concretions, fossil collection 
INOS AIS Ce eereeeh tapoate eteveon a Le Sci cuatt aout acne te aloe Gea INE ae Na 200 
Limestone, sandy, alternating with quartzite and clearer limestone... 400 
Sandstone,;whitishafine-graimed,,ome)| Deda scm 06 a. ee ee re 2 
Sandstone, red in part, nearly quartzite, cross-bedded............... 100 
Limestone, sandy, with quartz-lined geodes, one bed................ B 
Sandstone, white to reddish, soft, bears abundant Schizophoria; also 
represented by fossil collections Nos. 28 and 32 for near-by 
TOaliity, Ore area a reine oe cata Perea tees Pate Peak ey ci RO aaa 35 
Sandstone vonenbed yrs se coins wie he el ce tee eee nae terete 2 
Sandstone, thin-bedded-itossil collection| tonite ee ee ee 6 
‘[LotalsthicknessWiellsmtormaatione sis sa seiner ee ener 2,400 
