54 



NEW YORK STATE MUSEUM 



Moscow shales 

 Upper division 

 Fossils in these beds are less profuse though more numerous 

 in species. They are quite uniformly distributed through the 

 lower portion but farther up become arranged in thin beds sepa- 

 rated by more or less wide intervals of barren shales. 



Thin layers of limestone in these upper shales carry agglomer- 

 ated masses of fossils. 



Crustaceans 



Phacops rana Green c 



Cryphaeus boothi Green 

 Froetus macrocephalus Hall 

 Homalonotus dekayi Green 



Worms 

 Spirorbis angulatus Hall 



Cephalopocls 

 Orthoceras exile Hall 

 O. emaceratum Hall 

 O. nuntium Hall 

 O. crotalus Hall 

 Gyroceras liratum Hall 

 Bactrites tenuieinctus Hall 



Pteropods 

 Styliolina fissurella Hall 

 Hyolithus aclis Hall 



Gastropods 

 Bellerophon leda Hall 

 Platyceras carinatum Hall 

 P. echinatum Hall 

 P. erectum Hall 

 P. rectum Hall 

 P. symmetricum Hall 

 Pleurotomaria eapillaria Conrad 

 P. itys Hall 

 P. lucina Hall 

 P. rotalia Hall 

 Loxonema delphicola Hall 

 Diaphorostoma lineatum Conrad 



LamellihrancTis 

 Macrodon hamiltoniae Hall 

 Microdon bellistriatus Conrad 

 Cypricardinia indenta Conrad 

 Grammysia areuata Hall 

 G. bisulcata Conrad 

 Goniophora hamiltonensis Ball 



Modiomorpha macilenta Hall 

 jSueula corbuliformis Hall 

 N. lirata Conrad 

 Nuculites oblongatus Conrad 

 Orthonota carinata Conrad 

 O. parvula Hall 



O. undulata Conrad cc 



Palaeoneilo consti-icta Conrad 

 F. tenuistriata Hall 

 Pholadella radiata Hall 

 Phthonia nodocostata Hall 

 Sanguinolites solenoides Hall 

 Tellinopsis subemarginata Conrad 



Brachiopods 



Lingula punctata Hall cc 



Dignomia alveata Hall 

 Craniella hamiltoniae Hall 

 Crania crenistriata Hall 



Pholidops hamiltoniae Hall c 



P. oblata Hall 

 Rhipidomella penelope Hall 



R. vanuxemi Hall c 



Orthothetes pandora Billings 

 O. arctostriatus Hall 

 Stropheodonta concava Hall 



S. demissa Conrad rr 



fe. inequistriata Conrad 

 S. junia Hall 



Fholidostrophia nacrea Hall 

 Chonetes aurora Hall 



C. coronatus Conrad c 



C. deflectus Hall c 



0. lepidus Hall c 



C. scitulus Hall c 



Spirifer granulosus Conrad 



S. marcyi Hall 



S. audaculus Conrad 



