74 NEW YORK STATE MUSEUM 



The smaller coils resemble the Alaclurea sordida and 

 Ophileta levata of the Calciferoiis of New York.^ One 

 form, which very closely resembles the Ophileta c o m - 

 p 1 a n a t a as figured by Hall,- was noted. 



The fossiliferous rock at Haight's farm lies just east of the Glen- 

 ham gneiss belt with outcrops of the latter not more than 150 or 

 200 feet away. The strike of the limestone varies from n. 15'' w. 

 to n.-s. and the dip from 35° to 40° e. The strike is such as to 

 carry the limestone diagonally across the gneiss belt. The distance 

 separating the gneiss is too short to allow a very great thickness of 

 older beds to come between the two. South of the fossiliferous 

 ledges in the quarry used by the vState road contractors on the farm 

 of Mr Wilsey, are thick-bedded arenaceous limestones with a strike 

 of n. 35° e. and a dip of 51° s.e. These are probably older beds. 



East of the ledges of Beekmantown outcropping along the Glen- 

 ham belt, this horizon has not been definitely identified. In the 

 town of Old Hopewell, just east of Fishkill creek, is a prominent 

 hill which has some beds strongly suggesting the blue beds inter- 

 stratified with the gray ones in the main strip of the Wappinger 

 creek belt at Rochdale and two or three miles south of that hamlet. 

 The two rocks look very like each other and the resemblance is 

 strengthened by the presence of the peculiar seaweed-like markings 

 which have been described. The rock at Hopewell is more meta- 

 morphosed. Along the track of the Highland division of the New 

 York, New Haven & Hartford Railroad, in the cut three-fourths 

 of a mile east of the railroad bridge crossing the creek east of Hope- 

 well Junction, these blue layers form the upper portion of a gentle, 

 northward-pitching anticlinal fold (see plate 13). A distinct fault 

 is seen just east of here crossing the track and, when traced north- 

 ward, this is seen to be in line with the recess shown on the map just 

 south of the point where the creek turns northward in making its 

 detour around the hill. East of this northward bend the creek has 

 cut a gorge in the limestone, having been deflected southward by a 

 great mass of glacial deposits that flanks the limestone knoll north 

 of Gregory's mill. On the weathered surface of this knoll a fossil, 

 which looked like a cephalopod, was found. 



This rock resembles the blue layer just described. It often shows 

 a banded character which recalls the banded marbles or crystalline 

 limestones seen in the quarry two miles southwest of Millerton. 



1 Palaeontology of New York, i :io-it, plate 3. 



2 loc. cit., p. II, plate 3. 



