Fossil Calamities Stems
Fossil Calamities Stems

Fossil Calamities Stems

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Calamites is a genus of extinct arborescent horsetails to which the modern horsetails are closely related. Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of more than 30 meters. They existed in the Carboniferous Era more than 300 Million Years Ago.

This Specimen was collected in North Attleboro, Massachusetts.