296 GEOLOGICAL SURVEY OF THE TERRITORIES. 



14. Productus semireticulatus, Martin, (sp.) ; Sangre de Christo Pass, Colorado, and 

 Pecos Church, Mora City, Weber Mountains, Box Elder, North Platte. 



15. Productus nodosus, Newberry ; Mora Creek, New Mexico, Hot Springs, Salinas 

 Creek, Santa F6, New Mexico. 



16. Productus Prattenianus, N. ; head Black's Fork, Bear River, Utah. 



17. Productus longispinus, Sow., Far. Wabashensis, N. and P.; Hot Springs, Salinas 

 Creek, Santa FS, New Mexico. 



18. Productus (two or more undetermined species) ; Santa F6, New Mexico. 



19. Spirifer (Martinia) like S. planoconvexus, Shum.; Moleen Station. 



20. Spirifer cameratus, Morton ; Pecos Church, Mora Creek and River, New Mexico. 



21. Spirifer Bocky-Montani, Marcou (?) ; Santa F6, Mora Creek, New Mexico. 



22. Athyris subtilita, Hall, (sp.) ; Santa F6, Mora Creek, 10 miles south of Kosylo- 

 wiski ; near Pecos, New Mexico, and Sangre de Christo Pass, Colorado. 



23. Aviculopecten (undetermined species) ; near Pecos River, New Mexico. 



24. Aviculopecten caroonarius, Stevens ; near Pecos River, New Mexico. 



25. Myalina Swallovi, McChesney ; 10 miles south of Kosylowiski. 



26. Avicula (undetermined species) ; 10 miles south of Kosylowiski. 



27. Pleuropliorus angulatus, M. and W. ; 10 miles south of Kosylowiski. 



28. Bellerophon (fragments of large undetermined species) ; Moleen Station. 



PERMO-CARBONIFEROUS. (?) 



1. Fragments of Crinoid columns; Box Elder Station, Platte River. 



2. Hemipronites crassus, M. and H. ; Box Elder Station, Platte River. 



3. Aviculopecten occidentalis, Shum. ; Box Elder Station, Platte River. 



4. Myalina perattenuata, M. and H. ; Box Elder Station, Platte River. 



5. Pseudomonotis Hawni, M. and H. ; Box Elder Station, Platte River. 



6. Bakevellia (undetermined species); Box Elder Station, Platte River. 



7. Pinna peracuta, Shum. ; Box Elder Station, Platte River. 



8. ScMzodus curtus, M. and W. ; Box Elder Station, Platte River. 



9. Edmondia Aspenwallensis, M. (New species.; see description at end of list.) Box 

 Elder Station, Platte River. 



10. Pleuropliorus (?) (undetermined casts); Box Elder Station, Platte River. 



11. Maerocheilus, (undetermined species) ; Box Elder Station, Platte River. 



12. Ortlioceras (?) (small undetermined species); Box Elder Station, Platte River. 



13. PMllipsia (fragments of an undetermined species) ; Box Elder Station, Platte 

 River. 



JURASSIC SPECIES. 



1. Ostrea (a very small, undetermined species, with beak truncated) ; mouth Henry's 

 Fork of Green River, Dakota Teritory. 



2. Camptonectes extenuatus, M. and H. ; mouth Henry Fork of Green River, Dakota Ter- 

 ritory. 



3. Camptonectes bellistriatus, M. and W. ; Red Buttes, Green River, Dakota Territory. 



4. Trigonia (a small, undetermined species of Jurassic type); Red Buttes, Green 

 River, Dakota Territory. 



5. Bivalves (casts of several small, undetermined species) ; Red Buttes, Green River, 

 Dakota Territory. 



6. Cardinia (?) ; Salinas Creek, Hot Springs. 



7. Pholadomya (mere rude undeterminable casts) ; Salinas Creek, Hot Springs. 



8. Belemnites densus, M. and W. ; Como. 



9. Ammonites Nevadensis, Gabb ; between Sacramento and Summit Station. 



CRETACEOUS SPECIES. 



1. Ostrea congesta, Conrad ; between Hardscrabble and St. Charles. Cret., No. 3. 



2. Ostrea soleniscus, Meek ; near Bear River, associated with coal. Cret., No.— (?) 



3. Ostrea appressa, Gabb ? 3 ; Coalville. No.— (?) 



4. Gryphcea navia, Conrad ; Fort Bascom. Cret., No. 3. 



5. Inoceramus Sagensis, Owen (?) ; Fountain Creek, Colorado City, Colorado. Cret., 

 No. 4. 



6. Inoceramus Xragilis, H. and M. ; Medicine Bow River. Cret., No. 3. 



7. Inoceramus problematicus, Schloth, (sp) ; Fountain Creek, between Hardscrable, 

 Dodson Ranch, and St. Charles. Cret., Nos. 2 and 3. 



8. Inoceramus (undetermined species) ; six miles east Como Station, Union Pacific 

 Railroad. Cret., No. 2. 



9. Inoceramus deformis, Meek 4 ; Colorado City. Cret., No. 3. 



3. This may be either Mr. Gabb's O. appressa or his O. Idriaensis, if they are distinct, as there are 

 among the specimens individuals that agree pretty well with both, and yet seem to be only varieties of 

 one species. These and O. Soleniscus are found just above a bed of brown coal, and may possibly be 

 lower tertiary, bat are more probably upper cretaceous. 



4. See Fr6mont's Report, pi. iv, fig. 2. 



