46 FOSSIL MEDUS4. 
or decomposed prior to final burial in the mud, than the Middle Cambrian 
Brooksella and Laotira. 
In addition to the large number of specimens obtained on the slabs of 
slate in the sidewalks of Middle Granville, I collected a series of fine speci- 
mens from the greenish-colored roofing slate at the middle Penrhyn quarry, 
just west of the upper end of the village. At this quarry the cleavage of 
the slate is coincident with the bedding. The vertical range of the medusze 
is through a band of slate about 
6 feet thick that occurs in the 
face of the quarry, about 50 feet 
above the lowest bed quarried. 
It is only when this portion of 
the quarry is being worked that 
specimens can be obtained. 
Through the courtesy of the 
superintendent in charge, Mr. 
Edward Willis, of New York, I 
was notified at the time the 
: quarrymen were taking down a 
Fia,. 15.—Dactyloidites asteroides from Parker's quarry, new cut that passed through 
Georgia, Vermout. 
the medusa bed. 
The gregarious habit of this species is shown by the occurrence of 42 
greg p 
specimens on the surface of a slab of slate 37 by 62 inches, 19 on a slab 
26 by 49 inches, and 11 on a slab 27 by 88 inches. 
Formation and locality — Lower Cambrian; Penrhyn quarry, Middle Gran- 
ville, Washington County, New York. 
DACTYLOIDITES ASTEROIDES IN VERMONT. 
I recently received from Mr. G. E. Edson, of St. Albans, Vermont, an 
impression of a star-like fossil which he found at Parker’s quarry, Georgia, 
Vermont, in the coarse Olenellus shales. He calls attention to its resem- 
blance to Dactyloidites asteroides, and I am inclined to think that this identi- 
fication is correct. The impression is quite clearly defined on the somewhat 
rough, arenaceous shale, and the interior canals are clearly shown in three 
of the lobes. The specimen is represented in text fig. 15. 
