INDEX TO GEOLOGY OF ATTICA A'ND/pl5PEy^-Q.T5ApE4NG^E 33 



Marilla, 17, 20, 21, 22, 24 

 Marilla Station, 17 

 Melocrinus clarkei, 23, 25" 

 Meristella barrisi, 13, 14 

 Middlesex black shale, 6, 23, 24 

 Mill Grove, 12 

 Modiomorpha concentrica, 18 



subalata, 17 

 Morganville, 9, 10 

 Moscow, 19 



Moscow shale, 6, 19-20; exposures, 20 

 Murder creek, 16, 17, 19, 20, 21, 22, 



24, 25, 26 



Nautilus magister, 17 

 Nematophyton crassum, 9 

 North Evans, 19 

 North LeRoy, 9 

 Nuculites triqueter, 12, 15 

 Nunda sandstone, 6, 28-29; ex- 

 posures, 29 



Oakfield, 7 



Odontocephalus selenurus, n 

 Onondaga county, gypsum beds, 7 

 Onondaga limestone, 6, 10-12; ex- 

 posures, 11-12 

 Ontaria accincta, 25 



clarkei, 28 



suborbicularis, 23, 25, 27, 28 

 Ontario county, Gardeau flags and 

 shales, 27 



Genesee black shale, 21 



Genundewa limestone, 22 



Moscow shale, 19 



Tully limestone, 20 

 Orbiculcidea, 23 



sp., 29 



minuta, 14 

 Oriskany sandstone, horizon, 6, 9-10; 



exposures, 10 

 Orthoceras sp., 15, 29 



aegea, 14 



atreus, 23 



exile, 13 



filosum, 25 



marcellense, 13 



nuntitim, 17 



Ontario, 25 



Orthoceras pacator, 25, 28 



subulatum, 12 



mut. pygmaea, 21 

 Orthothetes arctostriatus, 15, 17 



interstriatus, 9 



Paleoneilo petila, 25 



tenuistriata, 17, 20 

 Paleotrochus praecursor, 28 

 Panenka sp., 23 



Paracardium doris, 23, 25, 27, 28, 29 

 Paracyclas lirata mut. pygmaeus, 21 

 Parsons Corners, 29 

 Phacops cristata, var. pipa, n 



rana, 13, 14, 15, 17, 18, 20 

 Phelps, 10, 13 

 Pholidops hamiltoniae, 20 

 Phragmostoma natator, 23, 25, 28 

 Pike creek, 18, 22, 24 

 Platyceras auriculatum, 17 



thetis, 17 

 Pleurotomaria, 9, 21 



sp., 29 



genundewa, 23 



rugulata, 23 



Pleurodictyum stylopora, 17 

 Plumb Bottom creek, 13, 14 

 Poland hill, 29 

 Portage beds, 6 

 Portageville, 28 

 Porterville, 26 

 Posidonia attica, 28 

 Primitiopsis punctulifera, 13 



punctuliferus, 15 

 Probeloceras lutheri, 25 

 Productella spinulicosta, 15 

 Proetus rowi, 17 

 Pterinea flabellum, 17 

 Pterochaenia cashaqua, 25 



fragilis, 12, 14, 15, 21, 23, 25,27, 28- 

 Pyrite in Tully horizon, 6, 20-21 



Rhinestreet black shale. 6, 26 

 Rhipidomella penelope, 18 



vanuxemi, 17, 18 

 Rhynchonella sp., 9 

 Rondout waterlime, 9 

 Ruedemann, Rudolph, cited, 8 



