A COAL-MEASURE FOREST 247 



Earthy fossiliferous lime - - - - - - - - - 17 ft. 



Sandy shale and granular lime -------- ^ 



'Ea.rthylimestone {Dielasmabovidens, Discina, etc.) - - - - 11 



Calcareous sandstone - - - - - - - - - -14 



Green sandy shale ---------- 6 



Reddish yellow sandstone (Coyote) ------- 40 



Massive earthy lime. 



It appears that this last section falls a little short of reaching the 

 Manzano quartzite and develops a great deal more of the sandy 



Fig. 5. Lepidodendron FiG. 6. — Lepidodendron socorroeri'^e, sp. n. 



-thwaitesi, var. siriolatum, ' (One-half natural size.) 

 var. n. (One-half natural 

 size.) 



materials that are found farther west, though the Coyote sandstone 

 has been observed to be 40 feet thick in one place, and entirely absent 

 or reduced to a few inches within the distance of half a mile in con- 

 tinuous exposure. 



For comparison, the following incomplete section may be given 

 from the escarpment west of the Rio Grande in about Township 5 N., 

 Range 4 W., of New Mexico P. M. This locality is northwest of the 

 Ladrones Mountains. 



Lava flow (basalt). 



Red flags and shales (position uncertain) 



Fault. 

 Limestone with (Permian ?) fossils - 



200-300 ft. 

 IS 



