E d 
rocker ARCHEOLOGY IN BRITISH GUIANA 297 
Although no cracks or chips revealed the paste color, the pottery 
type appears to be Rupununi Plain. The form is 1 a, with a height 
of 10.0 to 10.7 cm.; rim diameter 23.5 to 24.5 cm.; base diameter 6 
em.; and rim thickness 4 to 5 mm. It is not circular when viewed 
from above. 
Vessel G (pl. 65, d) was to the west at the rear of the shelter, lying 
inverted and containing only a little dirt. It was classified as 
Rupununi Plain Form 3 c, with the following dimensions: height 10 
em. ; rim diameter 22.5 to 23.2 cm., diameter at carination 20 cm.; wall 
thickness at rim 4 mm. 
R-36: MORMISWAU HEAD 
This large habitation site contained a group of burial urns in Area 
A. (See p. 281 and fig. 111 for details.) 
CEREMONIAL SITES 
R-21: MARIKANWAUDA 
Near the south foothills of the Kanuku Mountains, between the 
Rupununi River and its tributary, Sand Creek, is a wooded hill (fig. 
109). ‘Trees, vines, and small brush grow over and around numer- 
ous lichen-covered granite boulders of various sizes. The largest has 
a nearly vertical surface 4 meters high facing toward the north. 
Small rocks and slabs are scattered at the base, and one forms a small 
ledge. A shallow bowl was standing on edge on this ledge, leaning 
face outward against the main rock (pl. 60, a). No other vessels or 
sherds could be located anywhere in the vicinity. A little dirt inside 
the bowl contained a few tiny, white, glass “seed” beads. 
The bow] is Kanuku Plain Form 1 b (pl. 66, a). It is very asym- 
metrical, with an unlevel rim and a rounded bottom. Height is 5 
cm.; rim diameter 28 to 30 cm.; body wall thickness 7 mm., decreasing 
toward the rounded lip. This vessel was deposited in the British 
Guiana Museum, Georgetown. 
R-38: MACHE-EN-TAU 
Southwest of R-21, on the opposite side of the Rupununi River, 
is a southern projection from the Kanuku Mountains (fig. 109). A 
low rise at the base of the eastern side of this projection is littered 
with small, blackened, granite boulders. The vegetation is grass, 
with scattered Sandpaper trees. Forest begins at the mountain 
slope 100 meters to the northwest. One of the boulders is rounded, 
2 meters in diameter and 1 meter high. At the east side is a natural 
shelter created by a cut back in the lower part of the rock (pl. 60, 5). 
Here were found two large shallow bowls, both inverted and one 
