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19 Specimen Results
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Formation:
Lawrence
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Phylum
Pteridophyta (2)
Order
Equisetales (1)
Marattiales (1)
Family
Asterophyllites (1)
Calamitaceae (1)
Marattiaceae (1)
Genus
Pecopteris (1)
Individual/Organization
Walker, M.V. (17)
Elias, M.K. (1)
Period
Pennsylvanian (18)
Formation
Lawrence (19)
Country
United States of America (19)
State/Province
Kansas (19)
County
Douglas (19)