of Eastern Pennsylvania. 



215 



Fauna of No. 1476 F 2 ; with table of Geologic Raxge. 



fc 



List of Species. 



Geologic Stage.* 



s .w ^ o a 



O w 



£ 



*g ^ 



S H o Cu £ 



1 Nucula corbuUformis Hall a -1 -- -- -- x 



2 Tellinopsis subemaryinaia (Con.) Hall a .. .. -- .. x 



3 Palceoneilo constric ta (Con.) Hall \c\ .. .. -- -- x 



4 Nuculites triqueter Con c - - -- -- ? x 



5 Modiomorpha mytiloides (Con.) Hall \c\ -- -- -- -- x 



6 Phacops rana (Green) Hall c -- -- ? x x 



7 Ohonetes mucronata Hall c .. .- x x x 



8 Hyolithes aclis Hall c _......_ x 



9 Pleurotomaria Itys Hall c -------- x 



10, Nuculites oblong atus Con. ?• . . ._ .- __ x 



1 1 Spirifera fimbriala (Con. ) Bill r x x x . . x 



12 Palceoneilo inula Hall rr -- ... -- -- x 



13 Lecla cliversa Hall ?r -- .. -- -- x 



14 Leda rostelWa (Con.) Hall rr -- x 



15 Orthonota carinata Con. rr .. __ .. -- x 



16 Prothyr is lanceolata Hall rr .. .. -- .. x 



17 PJwladella radiata (Con.) Hall rr .. -_ .- .. x 



18- Goniophora carinata (Con.) Hall (?) rr .. .. .. .'. _. 



1 9 Modiella pygmaza (Con^ ) H all rr .. - - - - - . x 



20 Orthonota (?) parvula Hall rr ........ x 



21 Athyris spiriferoides (Baton) Hall Wr .. .. x _. x 



22 Tropidoleptus carinatus (Con.) Hall rr .. .. .. .. x 



23 Amboccelia umbonata (Con.) Hall rr .. .. .. x x 



24 Coleolus tenuicinctum Hall rr .. .. .. .. x 



25 Loxonema delphicola Hall (?) rr .. .. .. .. x 



26 Bellerophon leda Hall rr ._ .. _- . . x 



27 Dalmanites (Oryphceus) Boothi (Green )j 



Hall, possibly the var. calliteles Green rr . . . . x x x 



2 8 Orthoceras sp. fragments rr .. .. .. .. .. 



29 Spirifera granulifera Hall (?) rr .. .. .. .. x 



30 Grammysia lirata Hall ?) rr .. .. .. .. x 



31 Gyclonema hamiltonice Hall (?) rr , .. .. .. . . x 



32 Bellerophon brevilineatus Con. (?) W -. .- .. -. x 



* The data used in showing the geologic range of the species in the above list 

 are derived principally from the various works of Professors Hall, H. S. Williams, 

 and Clarke, and the distribution is confined mainly to New York. The reported 

 occurrence of certain species farther south along the line of the Appalachians is 

 intentionally left out of consideration, until further investigation shall enable us 

 to compare their stratigraphic position and faunas more carefully with the New 

 York series. Consequently che range of each species is based upon references 

 concerning the reliability of which there is believed to be no question, or upon 

 data that are personally known to be accurate This is a principle that is fre- 

 quently ignored in the preparation of large tables of distribution and range of 

 species. 



