GLEN DEAN CONODONTS 



13 



LOG. 8- GARY BROTHERS 

 QUARRY 



Covered, some ton limestone 

 ledges exposed. 5' 



Limestone, ton, massive, coarse 

 grained, partly oolitic. 3' 



Shale, black, calcareous, fossiliferous 

 Limestone, dark gray, fine to 

 medium-grained. 7' 



Limestone, gray, fossiliferous, 

 medium to thin-bedded, has 

 thin shale partings. I3'3" 



Shale parting. 2" 



Limestone, tan to gray, 

 coarse-grained, partly 

 oolitic, fossiliferous, with 

 thin shale partings. I0'9" 



Fig. 8. — Gary Brothers Quarry, locality 8. Quarry 

 2000 feet east of Highway 231, Carter coordi- 

 nates 14-H-35, 1200 feet N. of S. line, 6300 feet 

 E. of W. line of quadrangle H-35, Sugar Grove 

 quadrangle, Butler County, Kentucky. 



limestone than in shale, but twenty-one of 

 the twenty-seven Glen Dean species are 

 common to both limestone and shale. 

 Kladognathus mehli and Spathognathodus 

 camphelli, the two species limited to shale, 

 w^ere each represented in this study by less 

 than four specimens, these from a single lo- 

 cality. The four species found only in lime- 

 stone probably reflect the method of sam- 

 pling rather than environmental factors. 

 Zones particularly productive of conodonts 

 were resampled in quantity, and, because 

 of the greater abundance of conodonts in 

 limestone than in shale, a disproportion- 

 ately high percentage of specimens are 



L0G.9- BROWNSVILLE 

 SOUTHEAST 



Limestone, gray, medium-grained, 

 crinoidol, cross-bedded. 3'6" 



I 



Shale, gray and tan, fossiliferous, 

 calcareous, slightly sandy. 4'6" 



M:: 



Covered. 



Limestone, light gray to tan, 

 medium to fine-grained, 

 crinoidol, argillaceous. 9' 



IZZI 



I . T 



I 



-1:31 



rh^^ 



Limestone, gray, 

 medium to coarse- 

 grained, crinoidol. 



24' 



I II 



III 



izn 



Fig. 9. — Brownsville Southeast, locality 9. Mc- 

 lellan Stone Quarry No. 4, just southwest of 

 Highway 65 approximately 3.6 miles from 

 Green River bridge in Brownsville, Carter co- 

 ordinates line between 24-1-40 and 4-H-40, 5450 

 feet E. of W. line of quadrangle, Rhoda quad- 

 rangle, Edmonson County, Kentucky. 



from limestone. Ligonodina roundyi and 

 Lonchodina paraclarki have both been re- 

 corded from shale according to Hass's dis- 

 tribution chart (1953, table 1), but in this 

 study Ligonodina roundyi and Lonchodina 

 cf. L. paraclarki were found only in lime- 

 stone. 



A comparison between the lower Glen 

 Dean massive limestone and the upper Glen 

 Dean zone of mixed lithology shows that 

 twenty-three species are common to both 

 the lower and upper Glen Dean. The two 

 species limited to the upper part are rare, 

 and the two limited to the lower part are 



EXPLANATION OF PLATE 2 



40 



All figures X 



Numbers in parentheses after explanations refer to locality and sample numbers, for example 



(12-3) refers to locality 12, sample 3. 



Figure 

 1-4 



5-8 



9-12 

 13-16 



Hindeodella spp., lateral views (12-3, 11-15, 2-42 and 11-14 respectively). 

 Roundya costata Rexroad, n.sp.; 5, posterior view of holotype (12-4); 6, lateral view 

 of a paratype (12-11); 7, posterior view of a paratype (13-17); 8, lateral vicAv of a para- 

 type, a young specimen (1-61). 



Hibhardella ortha Rexroad, n.sp.; 9, lateral view of a paratype, a young specimen 

 (13-3); 10, posterior view of holotype (13-1); 11, posterior view of a paratype, a vari- 

 ant (8-7); 12, posterior view of a paratype, a young specimen (13-3). 

 Hihbardella milleri Rexroad, n.sp.; 13, oblique posterior view of holotype (1-61); 

 14, lateral view of a paratype, a young specimen (7-16); 15, anterior view of a para- 

 type (10-4); 16, lateral view of a paratype (13-15). 



