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 

 Proetus inacro'cephalus Hall 

 Honialonotus dekayi Green 



Worms 

 Spirorbis angulatus Hall 



Cephalopocls 

 Orthoceras exile Hall 

 O. einaceratum Hall 

 O. nuntium Hall 

 O. crotalus Hall 

 Gyroceras liratuni Hall 

 Bactrites tenuicinctus Hall 



Pteropods 

 Styliolina fissurella Hall 

 Ilyolithus aclis Hall 



Gastropods 

 Bellerophon leda Hall 

 Platyceras carinatum Hall 

 P. echinatum Hall 

 P. erectum Hall 

 P. rectum Hall 

 P. symmetricum Hall 

 Pleurotoinaria capillaria Conrad 

 P. itys Hall 

 P. lucina Hall 

 P. rotalia Hall 

 Loxonema delphicola Hall 

 Diaphorostoma lineatum Conrad 



Lamellibranchs 

 Macrodon hamiltoniae Hall 

 Microdon bellistriatus Conrad 

 Cypricardinia indenta Conrad 

 Grammysla arcuata Hall 

 G. bisulcata Conrad 

 Goniophora hamiltonensis Hall 



Modiomorpha niacilenta Hall 

 Nucula corbuliformis Hall 

 N. lirata Conrad 

 Nuculites oblongatus Conrad 

 Orthonota carinata Conrad 

 O. parvula Hall 



O. undulata Conrad cc 



Palaeoneilo constricta Conrad 

 P. tenuistriata Hall 

 Plioladella radiata Hall 

 Phthonia nodocostata Hall 

 Sanguinolites solenoides Hall 

 Tellinopsis subeinarginata 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 



S. inequistriata Conrad 

 S. junia Hall 



Pholidostrophia nacrea Hall 

 Chonetes aurora Hall 



C. coronatus Conrad c 



C. deflectus Hall c 



C. lepidus Hall c 



C. scitulus Hall C 



Spirifer granulosus Conrad 

 S. marcyi Hall 

 I S. audaculus Conrad 



