76 NEW YORK STATE MUSEUM 



ern line of arenaceous limestones from Cuddebackville to Port Jervis 

 the species are those characteristic of these calcareous beds in the 

 localities already considered, to wit (Bies) : 



Platyostoma depressum Meristella lata 



Tentaculites elongatus Leptocoelia flabellites 



Orbiculoidea grandis Coelospira dichotoma 



Chonostrophia complanata Eatonia peculiaris 



Spirifer rnurchisoni Edriocrinus sacculus 



The difference in the lithologic character of these beds on the 

 eastern and the western flanks of the eroded Appalachian ridge is 

 striking and may be construed as evincing the nearer approach of the 

 easterly silicious and pebbly beds to the ancient shore line. 



At Port Jervis the sections exposed at the Nearpass, Buckley and 

 Bennett quarries have been given by Dr S. T. Barrett. 1 Here are 150 

 feet of the upper shaly (Kingston) beds lying above the Becraft lime- 

 stone, and these are followed by the calcareous strata (5-10 feet) termed 

 by Mather and Horton the Trilobite beds, which are specially characterized 

 by the presence of Dalmanites dentatus Barrett. 



Dr Barrett gives the following species as occurring in this stratum : 



Horaalonotus vanuxemi Strophonella cavumbona 



Dalmanites pleuroptyx S. leavenworthana 



D. nasutus Stropheodonta becki 



D. deutatus Brachyprion varistriatum 



[D. dolphi] Chonostrophia complanata 



Hyolithes centennialis Eensselaeria mutabilis 



Tentaculites elongatus Orthis subcarinata 



Holopea antiqua O. multistriata 



Loxonema fitchana Spirifer murchisoni 



Pterinea textilis Cyrtina rostrata 



Leptaena rhomboidalis Orbiculoidea discus 



Strophonella conradi O. conradi 



Stropheodonta planulata Schizocrania (?) superincreta 



. jour. sci. 1877. 13:386. 



