306 



NEW YORK STATE MUSEUM 



Feet 



Port Eiven 30-150 



Silieio argillaceous lime sandroeks and lime mud- 

 rocks, often pyritiferous. A well marked concre- 

 tionary (or conglomeratic ?! structure is seen in 

 the typical locality on the cut of the West Shore 

 railroad near the Wilbur bridge. These nodules 

 of lime mark the bedding plane and they readily 

 weather away leaving large cavities. In these 

 hollows silicified fossils are often found. Among 

 the commoner species are : 



Leptaena rboinboidalis (Wilck.) c 



Atrypa reticularis Linnc a 



Strophonella leavenwortbana Hall c 



Dalmanella perelegans Hall c 



Ortbothetes woohvorthanus (Hall) c 



Spirifer perlamellosus Hall c 



Rhipidomella oblata Hall c 



Meristella laevis (Vanuxem) c 



Uncinulus campbellanus (Hall) c 



Phaeops logani Hall c 



Chaetetes sp. ? c 



Hindia fibrosa (Roemer) c 



Tentaculites elongatus Hall c 



Anastrophia cf. verneuili (Hall I 



Spirifer concinnus Hall c 



Acidaspis tuberculatus Hall c 



The maximum thickness is at Port Ewen. * 

 Bee raft limestone 40 



Massive bedded light colored lime sandrock. often 

 becoming a shell limestone of great purity and 

 consisting of brachiopod shells and crinoids. The 

 lower beds are more argillaceous, being a transition 

 from the New 'Scotland below. The middle IS or 

 20 feet range from 94 to 97$ calcium carbonate. 

 The last recorded outcrops of this rock are below 

 High Falls. From the Bondout region van Ingen 

 and Clark record the following species: 



Upper portion 

 Siclierella pseudogaleata //(/// a 

 Atrypa reticularis Linnc a 

 Spirifer concinnus Hall a 

 Rhipidomella oblata Hall c 

 Crinoid fragments a 

 Stropheodonta arata Hall r 

 Leptaena rhomboidalis (Wilck.) c 

 Nucleospira ventricosa Hall c 

 Spirifer perlamellosus //"// c 

 Oriskania (?) sp. ? r 



Middle portion 

 Aspidocrinus scutclliformis Hall aa 

 Spirifer concinnus Hall aa 



