The Human Fossil Record. Volume 2 Craniodental Morphology of Genus Homo (Africa and Asia)

ZHOUKOUDIAN (C€IOUKOUTIEN): UPPER CAVE (SHANDINGDOXG) 579

been much larger than laterals. C roots and crowns
apparently not much larger than I1 roots and crowns.
P1 and P2 apparently single rooted. P1 slightly larger
than P2 in all dimensions; both are quite short m/d
but wide b/l. Molars decrease in size M1-3; Ml
much larger b/l and m/d than premolars. Molar
enamel probably was quite wrinkled. Hypocones pre-
sent on Mls; decrease in size to M3 (where may be
absent). Metacone much smaller than paracone in
M2; even more so in M3. Ml subsquare. Lower in-
cisor roots tiny; 11s more so than 12s. C roots stouter;
crowns would have been fairly large, but not much
larger in cross-section than premolars. P1 and P2
were sub-equal in size. Both single rooted; noticeably
smaller than molars. Molars decrease in size from M1
to M3. Ml and 2 subrectangular; M3 rounded dis-
tally. Any separation of roots was well below necks;
M3 roots apparently undivided.

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Repository

The original specimens were lost in 1941. The principal

reference set of casts is in the Division of Anthropology,

American Museum of Natural History, New York, NY

10024.