FAUNA OF THE COTTONWOOD SHALE. 39 



10. Aviculopecten maccoi/i, ]M. and H. {rr) 



11. Meekella striato-costafa (Cox), White and St. John, (c) 



12. Cha-tetes cf. carbouar'tHS, AVorthen. (c) 



13. FiMulipora nodidifcm, jNIeek. (r) 



14. Crania sp. (rr) 



15. Crhioid, segments of stem and plates, (c) 



Fauna of the Cottonwood Shale. — The shale referred to above is very 

 similar in lithologic appearance to the yellowish shale overlying the Cot- 

 tonwood limestone in the Cottonwood valley, which I have called the 

 " Cottonwood shale." The Cottonwood shale is abundantly fossiliferous, 

 and the following species have been found in the vicinity of Cottonwood 

 Falls and Strong City : 



■* 1. CJi ot let es granul if era, Owen, {aa) 



* 2. Derhya crassa (M. and H.), Hall and Clarke, {aa) 



* 3. Athyris subiilita (Hall), Newb. («) 



* 4. Productus semireticulatus {^lartin), de Koninck. (a) 



* 5. Meekella striato-costata (Cox), White and St. John, (c) 

 6. Productus nebrascensi.'i, Owen, (r) 



* 7. Aviculopecten maccoyi, M. and H. (/■} 



* 8. Straparollns {Euomphahis) subragosus, Meek and Worthen. (rr) 



* 9. Synocladia biserialis, Swallow, (rr) 



* 10. Rhombopora lepidodendroides, IMeek. {rr) 

 11. Lophophyllum proUfenim, 'McChesney. {rr) 



* 12. Fiisulina cyUndrica, Fischer, (r) 



13. Aviculopecten occidentalis (Shum.), M. and W. {rr) 



14. Terebratula bovidens, Morton, (rr) 



* 15. Chxtetes sp. 



* 16. Crinoid, segment of stem and i)lates. 



* 17. Archcvocidari.^, plates and spines. 



18. Phillipsia scUida, M. and W. (?). {rr) 



19. Glauconome sp. (r) 



From the above list it will be seen that all the abundant and really 

 characteristic sj^ecies are common to the yellowish shales, both of Cot- 

 tonwood Falls and Manhattan. As far as the present collections are con- 

 cerned, Productus nebrascensis, Owen ; Lophophyllum proUferum, McChes- 

 ney; Aviculopecten occidentalis (Shum.) M. and W. ; Terebratula bovidens, 

 Morton ; Phillipsia scitula, M. and W. (?); and Glauconome sp. have been 

 found only in the Cottonwood shale near Cottonwood Falls, and Crania 

 sp. only at Manhattan. Und()ul)tedly careful search would increase the 

 number of species at each locality and ])robably show a larger number 

 common to both regions. Manhattan is G5 miles north of Cottonwood 

 Falls, and there are as many identical species from two localities belong- 



• indicates that the species is common to the Manhattan and Cottonwood phales. 



