Equisetaceae fossil completely agatized, Entre Rios Province, Argentina 3AA

Description

Perfectly agatized
Equisetaceae fossil ( today call it :
Equisetum
) from Entre Rios Province, Argentina.
Late Paleozoic age (100 million years old)
Fluorescent under UV light short wave.
Specimen size : 4 2/8" x 2 2/8"
The specimen was cut along the axis and polish to mirror finish.
Equisetum
,
horsetail
,
snake grass
,
puzzlegrass
is the only living genus in
Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds.
Equisetum is a “living fossil”, the only living genus of the entire class Equisetopsida,
which for over 100 million years was much more diverse and dominated the under story of late
Paleozoic forest.
Fluorescent under UV light short wave.
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