42 C. S. PJROSSER PERMO-CARBONIFEROUS AND PERMIAN ROCKS. 



1. Productus longispinus, Sowb. (a) 



2. Productus seinlretlculatas (Martin), de Koiiinck, {rr) 



3. Alhyris subtillta {H^W), Isewh. (r) 



4. Rhijnclionella uta (Marcou), Meek, (r) 



5. Splrifer [Martinia) planoconvexus, Shum. (rr) 



6. Clionetes granidifera, Owen, {rr) 



7. Berhya crassa (M. and H.), H. and C. (?). {rr) 



8. Meehella striato-costata (Cox), White and St. John, {rr) 



9. Splrifer ccuneratus, Morton, {rr) 



10. Clionetes verneuiliana, N. and P. {rr) 



11. Pinna peracuto, Shum. {r7') * ' 



12. AUorls77ia geinitzii, Meek {?). {rr) 



13. PhiUipsia scitula, M. and W. (?). {rr) 



Simply a fragment of the buckler. 



14. Ccimpophyllum torquium {Owen), Meek {?). {rr) 



15. Fasidma cyllndrlca, Fischer. 



Abundant in the shaly limestone on top of the massive stratum, but also 

 in the massive rock. 



16. Crinoid stems, (r) 



McFARLAND SECTION AND COMAPRISON OF ITS FAUNA WITH THAT OF 



BUFFALO MOUND. 



The bluff on the south bank of Mill creek, opposite the railroad station 

 at McFarland, nine miles west of Buffalo mound, affords a good section. 

 The following beds are exposed in descending order : 



Feet Feet 



10. Yellowish, somewhat porous rock, capped by gray shaly limestones 



to the summit of the bluff. 

 9. Light gray shaly limestone near the top of bluff, containing Pseudo- 1 = 155 



monotis hawni (M. and H.) and Avicidopecten occidentalis (Shum.), 



M. and H. 



8. Slope mostly covered ; few exposures ) 



7. Shaly light gray limestone, with Fasidma j 



6. Slope covered 31 = 83 



5. Bluish gray massive limestone, containing fossils 1 = 52 



4. Slope mostly covered 42 = 51 



3. Greenish, blue and yellowish shale, alternating with light gray and 7 =- 9 



yellowish limestone, containing plenty of fossils. 

 2. Coal, 3 inches in thickness. 

 1. Blue shale, reaching the level of Mill creek , 2— 2 



The lower part of number 3 contains numerous fossils, and the follow- 

 ing species were obtained : 



1. Clionetes granidifera, Owen, {aa) 



2. Chonetes glabra, Geinitz. {rr) 



3. Productus longispinus, Sowb. (c) 



4. Productus semireticulatus (Martin), de Koninck. (c) 



