hee ARCHEOLOGY IN BRITISH GUIANA 103 
Base: 
A. Flat, unthickened or slightly thickened, rarely with a convex in- 
terior, joining sidewalls at an angle ranging from 25 to 55 degrees ; 
diameter 5-10 cm., maximum thickness 1.2 em. (fig. 40, A). 
B. Flat pedestal; thickness 2-10 mm. greater than the body wall; 
pedestal 8-15 mm. high; diameter 12-14 cm. (fig. 40, B). 
Major vessel shapes reconstructed from sherds: 
1. Open bowl with outslanting sidewalls, direct rim and usually rounded 
but sometimes slightly tapered or flattened lip. Body wall thick- 
ness 4-10 mm., majority 8 mm.; mouth diameter 10-28 cm., with 
the majority 18-22 em. (fig. 40-1; pl. 25, a). 
2. Bowl or jar with vertical to incurving walls, direct rim, usually 
rounded but sometimes flattened or tapered lip; body wall thick- 
ness 4-12 mm., majority 6-8 mm.; mouth diameter 15-34 cm. (fig. 
40-2; pl. 25, g). 
8. Globular jars with a constricted mouth and an‘exteriorly thickened, 
flat-topped rim. A coil, usually 1.0-1.5 em. thick, is added to the 
exterior of the body wall at the rim to produce a broad flat and 
usually level rim top 1.0-2.3 em. wide; mouth diameter 18-36 em. 
(fig. 40-3 ; pl. 25, 6, f). 
4. Jars with constricted mouth, sharply everted rim and rounded or 
flattened lip. Rim forms an angular junction with body on in- 
terior and a rounded one on the exterior. It projects 1.5-2.6 cm. 
Mouth diameter 20-36 cm. Apparently a globular body is most 
common, but a few are carinated (fig. 40-4; pl. 25, d-e). 
Less common vessel shapes reconstructed from sherds: 
1. Small open bowls with a flat flange produced by interior thickening 
of the rim; the flange is 1.0-1.4 cm. wide; lip rounded; mouth 
diameter 12-22 cm. 
2. Griddles. <A large circular platter of pottery with the rim slightly 
upturned so that it rises 5 mm. to 2 cm. above the center of the 
griddle; lip rounded; rim diameter 30-45 cm. 
TEMPORAL DIFFERENCES WITHIN THE TYPE: 
Thicker body sherds with a higher percentage of large hunks of unpul- 
verized steatite-schist temper, resulting in a coarser texture and rougher 
surface, tend to be more common in the earlier part of the Mabaruma 
Phase sequence. Later, the type tends to be more thin walled, with the 
steatite-schist temper more finely crushed and evenly distributed through- 
out the paste. 
Common form 3 is restricted to the lower (early) to middle part of the 
sequence. Common form 4 continues slightly longer but this form is 
definitely not found in the late history of the type. Less common form 
1 is found only at N-13, which belongs to the middle part of the sequence 
(Appendix, table 9). 
CHRONOLOGICAL POSITION OF THE TYPE: Hotokwai Plain occurs throughout the 
Mabaruma Phase sequence, reaching the peak of popularity at the middle 
of the sequence, and thereafter declining in frequency (fig. 48). 
KAITUMA INCISED AND PUNCTATE 
PASTE AND SURFACE: This decorated type occurs principally on pastes of Hoso- 
roro Plain and Koberimo Plain. At that point in the sequence when Hotokwai 
Plain reaches its peak of popularity a considerable number of Kaituma In- 
