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11 Specimen Results
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Equisetales
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Phylum
Pteridophyta (11)
Family
Asterophyllites (1)
Calamitaceae (11)
Genus
Annularia (9)
Calamites (1)
Individual/Organization
Sternberg, G.F. (5)
Hamm, S.A. (1)
Elias, M.K. (1)
Mrs. Danforth, F. (4)
Period
Pennsylvanian (9)
Formation
Altamont (1)
Lawrence (1)
Mazon Creek (9)
Member
Lake Neosha (1)
Country
United States of America (11)
State/Province
Illinois (9)
Kansas (2)
County
Douglas (1)
Grundy (9)
Montgomery (1)