FAUNAL EVIDENCE AND CORRELATION. 



257 



the San Juan region are less strongly marked in other areas. I believe, however, that 

 the collections on the east side of the valley probably' belong to the horizon of the 

 lower Hermosa of the San Juan region and the Weber formation of the Crested Butte 

 region. The accompanying table shows the local distribution of the species found 

 near Oura3\ 



Table XV. " — Table shoiuing distribution of Pemisylvaniau species in the Her niosa formation at Ouray. 





2194. 



2195. 



i:ia5ft. 



2196b. 



2195e. 



Total. 





PROTOZOA. 



X 

 X 

 X 







X 



X 



3 





CCELENTERATA. 







1 





ECHINODERMATA. 











1 







X 

 X 







1 





BRACHIOPODA. 











1 



Chonetes fl emingi 



X 









1 







X 

 X 







1 









X 



X 





3 



Productus semircticulatus 



var. bermosanus 



X 

 X 



1 



Productus oora 







X 











X 





1 



Marginifera ingrata 





X 





1 



Spirifer booncnsis''. 



X 









1 





X 



X 



X 





3 





X 

 X 



1 



Squamularia perplexa 











1 



Seminula subtilita 



X 



X 



X 





3 



Aviculopc'Ctun sp. b 



PELECYPODA. 



X 



1 



Streblopteria tt^nuilineata 

 Phillipsia major 









X 





1 



CRUSTACEA. 





^ 





1 















a For u (leaeription of the localities indicated by number in this table see locality register, pp. .719-532. 

 DOLORES RIVEE REGIOJ^T. 



A single collection from Sinbads Valley (station 2285) is all we have to represent 

 the Carboniferous strata of the Dolores River region. Its horizon is in the strati- 

 graphic equivalent of the Hermosa formation, about 100 feet below the Red Beds. 

 The following species have been identified: 



Lopho])h villi 111 profundum. 



Orthotichiti .schuchertensis. 



Enteletes hemiplieatus. 



Chonetes granulifer. 



Productus portlockianus. 



Produntus semireticulatus, var. hermosanus? 



Spirifer cameratus. 



1436i— No. 16—03 17 



Chajnomya leavenworthenais. 

 Edmondia mortonensis? 

 ?Naticopsis altonensis. 

 Euomphalus catilloides. 

 Worthenia tabulata? 

 Bellerophon percai'inatus. 



