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6 Specimen Results
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Genus:
Alethopteris
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Phylum
Pteridophyta (6)
Order
Trigonocarpales (6)
Family
Alethopteridaceae (6)
has media
Has media (1)
Has no media (5)
Individual/Organization
Sternberg, G.F. (3)
Elias, M.K. (1)
Mrs. Danforth, F. (2)
Period
Pennsylvanian (5)
Formation
Mazon Creek (5)
Stranger (1)
Country
United States of America (6)
State/Province
Illinois (5)
Kansas (1)
County
Grundy (5)
Linn (1)