36 University of Texas Bulletin 



SECTION OF THE WENO FORMATION AT LOCALITY 601, PIT OF GAINES- 

 VILLE BKICK COMPANY, ONE AND THREE-FOURTHS MILES SOUTH- 

 EAST OF GAINESVILLE, TEXAS 



PAWPAW: Feet 



Shell limestone, consisting almost entirely of masses of comminuted shells. . . 0.2 

 Shelly calcareous marl, with ironstained arenaceous cement and masses of 



shells. O. QUADRIPLICATA LAYER 8 



This stratum contains: O. quadriplicata, Pecten subalpinus, Plicatula 

 sp., Leiocidaris sp. spines. 



Hard reddish limestone composed almost entirely of- comminuted shells iron- 

 stained 3 



Shell conglomerate of small packed shells, laminated .5 



QUARRY: 



Compact shelly blue to yellow limestone containing many comminuted shell 



fragments. QUARRY LIMESTONE 9 



This stratum contains: Gryphea sp., Pecten subalpinus, cidarid spines 

 (rare), Plicatula sp. 



Shell conglomerate of Gryphea washitaensis chiefly, with considerable cal- 

 careous cement. GRYPHEA CONGLOMERATE 7 



This stratum, which is conspicuous as just underlying the cap rock 

 of the rim of the pit, contains: Ostrea carinata, cidarid spines, Ostrea 

 marcoui, Plicatula sp. 



WENO: 



Packed bluish to yellow clay, with two thin seams of Gryphea shell conglom- 

 erate, each one inch thick 1.0 



Sand layer containing no fossils, irregular thickness, about .2 



Blue to yellow shale, with a considerable amount of sand in the form of 



irregular anastomosing sand lenses and streaks. Fossils in the shale . . 4.7 



Ironstone band .1 



Blue to yellowish iron stained shale, with irregular calcareous concretions, 



locally called "ginger shale" 2.5 



The ginger concretions also occur in the sandy layer just above the 

 ironstone seam. 



Fossiliferous Ironstone stratum .5 



The clay-ironstone of this and the overlying ironstone layers has been 

 excavated and dumped in a large heap on the east rim of the pit. 

 Material in situ in the pit and that in this heap bears the following 

 nacreous fossils: %Protocardia sp. aff. multistriata (Shumard), very 

 abundant as casts and molds, with the original shell; $Barbatia sp., 

 JCorftwto basiniformis Adkins, $Nucula nokonis Adkins, %-Nucula weno- 

 ensis Adkins, $Globiconcha sp., ^.Natica sp., \Cinulia washitaensis 

 Adkins, Cambarus (?) sp., %Schloenbachia wintoni Adkins, %Gervilliopsis 

 invaginata (White), %Pecten inconspicuus Cragin, $An,chura mudgeana 

 (White), and many other fossils. 



Blue fossiliferous shale and calcareous bands 4.0 



This material is an alternation of thin bands of yellow sandy lime- 



