عنوان

A Test of Three Shellfish Seasonality Methods: Preliminary Results

Number

LA0490b2wh

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

A Test of Three Shellfish Seasonality Methods: Preliminary Results

General Material Designation

[Article]

First Statement of Responsibility

Cerreto, Richard

Text of Note

This paper reports preliminary results of investigations into the use of bivalves as seasonal indicators in archaeology. Specifically, it addresses three proposed methods used for deriving seasonality for the southern California coastal region (Drover 1974; Lyons 1978; Macko 1983) based on external shell features. Basic to each of these seasonality methods is the premise that each year, usually during winter, Chione species bivalves will form an externally visible growth-cessation band (often termed the ''winter'' or ''annular'' break ring or band) along the outermost margins of their shells. As the bivalve resumes growth during the remainder of the year, this ''annular'' band is incorporated as a feature of the external shell structure of the bivalve. It is assumed that these ''annular'' bands therefore are permanent marks recording each year in the life of a bivalve across the surface of its shell from the hinge to the margin, and that the growth between each band occurred in one year. Based on this premise, three methods (each simply variations on the same theme) have been proposed to obtain seasonal data from shell remains recovered from archaeological sites on the southern California coast. A fourth method (Weide 1969) employing Pismo clams is not considered here because that species is somewhat sparse in most southern California shell middens.

Date of Publication

1988

Title

Journal of California and Great Basin Anthropology

Volume Number

10/2

Entry Element

Cerreto, Richard

Electronic name

[Article]

275578

a

Y