Herrin Fossil Flora
Lycopsids - Ancient Club Mosses
Root Structures
Halonia tuberculata
Halonia tuberculata, (Page 2, Fig. 10. Herrin Roof Shale Flora field guides, ESCONI/Wittry). - A.Young
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Above and below: details of top specimen. - A.Young
A.Young
Stigmaria ficoides
Stigmaria ficoides, (Page 2, Fig. 11. Herrin Roof Shale Flora field guides, ESCONI/Wittry). - A.Young
M.Angkuw
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A.Young
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A.Young
M.Angkuw
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A.Young
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M.Angkuw
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A.Young
D.Carlson
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R.Russell
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Stigmaria sp.
Root-like structures of various arborescent lycophytes
A.Young
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A.Young
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A.Young
A.Young
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Detail to left. - B. Monroe
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A.Young
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A.Young