NO. 6 OYSTERS OF THE LOPHA LUGUBRIS GROUP — KAUFFMAN J^ 



68. Upper Blue Hill Shale Member, Carlile Shale, Colorado Group, in a 2- 



inch limestone overlying cone-in-cone beds, septarian limestone concre- 

 tion zone, zone of Collignoniceras hyatti, stream gully 1.3 to 1.5 miles 

 north-northwest of Red Wing, on the Jones' Cattle Company Ranch, 

 SWl/4 SEl/4 sec. 26, T. 26 S., R. 71 W., Huerfano Park, Huerfano 

 County, Colo. Collected by E. G. Kauffman, 1959. 



69. Blue Hill Shale Member, Carlile Shale, Colorado Group, zone of septarian 



limestone concretions in upper 10 feet of member, 1 mile east of 

 Williams Creek, ^ mile south of unimproved dirt road, Wl/2 NEl/4. 

 sec. 12, T. 25 S., R. 70 W., Huerfano Park, Huerfano County, Colo. 

 Collected by E. G. Kauffman, 1959, 1961. 



70. Blue Hill Shale Member, Carlile Shale, Colorado Group, zone of septarian 



limestone concretions in upper 20 feet of member, along the Fort Hays 

 Limestone hogback south of an unimproved dirt road, 0.8 mile southeast 

 of Maes' School, NWl/4 NEl/4 sec. 14, T. 26 S., R. 69 W., 

 Huerfano Park, Huerfano County, Colo. Collected by E. G. Kauffman, 

 1958. 



71. Blue Hill Shale Member, Carlile Shale, Colorado Group, zone of septarian 



limestone concretions in upper 25 feet of member, below? Codell Sand- 

 stone-Juana Lopez limestone hogback 0.5 mile north of Colorado State 

 Highway 69, near center of sec. 31, T. 26 S., R. 68 W., 1.4 miles east of 

 Farisita, Huerfano Park, Huerfano County, Colo. Collected by E. G. 

 Kauffman, 1959. 



72. Blue Hill Shale Member, Carlile Shale, Colorado Group, septarian lime- 



stone concretion zone in upper 15 feet of member, just below Juana 

 Lopez-Fort Hays Limestone hogback, 2-3 miles north of Thatcher, Colo., 

 50 to 100 yards east of an improved dirt road leading north from gen- 

 eral store and Thatcher School. Collected by E. G. Kauffman, 1961. 

 73. Blue Hill Shale Member, Carlile Shale, Colorado Group, septarian lime- 

 stone concretions in upper part of member, 1 mile north of the 

 Arkansas River, on slopes surrounding a dry tributary, SEl/4 NEl/4 

 sec. 25, T. 20 S., R. 66 W., Pueblo County, Colo. Collected by E. G. 

 Kauffman and F. Collier, 1962. 



Lopha hellaplicata bellaplicata var. A. 



Collected in the Codell Sandstone Member, Carlile Shale, Colorado Group, at 

 localities 41, 58, 59, 60, and 61, previously cited under Lopha bellaplicata. 



LITERATURE CITED 



Abbot, R. T. 



1954. American seashells, p. 2i7Z. D, Van Nostrand Co., Inc., New York. 

 Adkins, W. S. 



1928. Handbook of Texas Cretaceous fossils. Univ. Texas Bull. No. 2838, 

 p. 104, pi. 16, fig. 5; pi. 24, figs. 8, 9. 

 Adkins, W. S., and Lozo, F. E. 



1951. Stratigraphy of the Woodbine and Eagle Ford, Waco area, Texas. 

 Fondren Sci. Ser., No. 4, p. 155, pi. 5, fig. 1. Southern Methodist 

 Univ. 



