FORMATIONS OF ORDOVICIAN AGE. 53 
strophia hemiplicata zone (see page 39), near the base of the Trenton 
limestone. The sequence from the Trenton limestone to the Hudson 
River slates at this locality is normal for New Jersey, and there is 
no dislocation of the strata between the two exposures. Although 
no ‘Trenton fauna has been found above the graptolite beds, their 
position, as indicated by their relationship with the Parastrophia , 
hemiplicata beds below, would seem to be equivalent to about the 
middle portion of the typical Trenton limestone of Central New 
York, or even to a position below the middle. 
Locality 348 A.—This locality is near Jutland, in the large out- 
lying area of Paleozoic rocks, with the town of Clinton near its centre, 
and which hes between the Pre-cambrian crystalline rocks on the 
north and the Triassic sandstone on the south. The fossils were 
collected in the first railroad cut east of Jutland, on the Lehigh Valley 
railroad, about 340 yards east of Jutland station and 92 yards from 
the contact of the Triassic sandstone with the Hudson River beds. 
The geologic structure of the neighboring region is very complex, 
and the position of the fossil-bearing bed in the formation, as a 
whole, cannot be determined. ‘The fossils collected have been identi- 
fied as follows, all of them being graptolites: 
1. Climacograptus phyllophorus Gurley. 
. Dicranograptus ramosus (Hall). 
Cenograptus gracilis (Hall). 
4. Reteograptus geinitzianus Hall. 
Of these species all but Dicranograptus ramosus, which sometimes 
occurs in the Utica shale, are characteristic of the Norman’s Kill 
fauna, and the bed bearing the fauna undoubtedly belongs near the 
base of the Hudson River formation. 
SU AY) 
