Archaeology & Evolution Glossary (Z)

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zygomatic arch: Bony arch on the lateral part of the cheek formed by projections of the zygomatic bone and the temporal bone, enclosing the fibers of the temporalis muscle and for attachment of the masseter muscle.

zygomatic base: Place where the lower border of the cheek merges with the outer wall of the palate.

zygomatic bone: The facial bone that makes up the cheek corner and outer orbital pillar, and encloses the front part of the temporal fossa.

zygomatic process: Part of a bone extending toward and meeting the zygomatic bone, there is a zygomatic process of the frontal, temporal, and maxilla.

zygomatic root: The rearward base of the zygomatic process of the temporal, as it extends over the outer ear opening.

zygomaxillary region: The cheek, comprised of the anterior face of the maxilla and zygomatic bones.

zygomaxillary ridge: A low ridge that extends along the suture between the zygomatic and the maxillary bones.

zygonema: The stage during meiosis in prophase I at which homologous chromosomes being to pair in a highly specific way (like a zipper).

zygote: The fertilized egg that results from the union of two gametes.

Bibliography

Andrefsky, W., Jr. 1998. Lithics: Macroscopic Approaches to Analysis. Cambridge: Cambridge University Press.
Keesing, R.M. 1975. Kin Groups and Social Structure. Fort Worth: Harcourt Brace.
Renfrew, C., and P. Bahn. 1996. Archaeology: Theories, Methods, and Practice. New York: Thames and Hudson Inc.
Russell, P.J. 1998. Genetics. Menlo Park: Addison Wesley Longman, Inc.
Wolpoff, M. 1999. Paleoanthropology. second edition. Boston: McGraw-Hill.