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Family:
Calamitaceae
Country:
United States of America
County:
Grundy
Filter by
Phylum
Pteridophyta (9)
Order
Equisetales (9)
Genus
Annularia (9)
Individual/Organization
Sternberg, G.F. (5)
Mrs. Danforth, F. (4)
Period
Pennsylvanian (9)
Formation
Mazon Creek (9)
State/Province
Illinois (9)