Diagnostic Artifacts

An online guide to artifacts from the Middle Atlantic by the Maryland Archaeological Conservation Laboratory

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Artifact Gallery

Brewerton Eared Triangle PP-BET-002

Image of stone projectile point made of Rhyolite, Triangular shape, with a N/A stem, Straight blade, and Straight base shape. Brewerton Eared Triangle type.

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18CR135 Heise #110 Brewerton Eared Triangle Late Archaic Period N/A stem rhyolite straight base straight blade triangular

Brewerton Side Notched PP-BSN-008

Image of stone projectile point made of Argillite, Side-Notched shape, with a Expanding stem, Excurvate blade, and Concave base shape. Brewerton Side Notched type.

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18CR135 Heise #110 argillite Brewerton Side Notched concave base excurvate blade expanding stem Late Archaic Period side-notched

Lamoka PP-LAM-014

Image of stone projectile point made of Rhyolite, Side-Notched shape, with a Expanding stem, Excurvate blade, and Straight base shape. Lamoka type.

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18CR135 Heise #110 excurvate blade expanding stem Lamoka Late Archaic Period rhyolite side-notched straight base