15 Specimen Results

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Phylum

Pteridophyta (15)

Family

Alethopteridaceae (6)

Medullosaceae (9)

Genus

Alethopteris (6)

Codonotheca (2)

Neuropteris (7)

has media

Has no media (14)

Individual/Organization

Sternberg, G.F. (9)

Elias, M.K. (2)

Mrs. Danforth, F. (4)

Period

Pennsylvanian (13)

Formation

Mazon Creek (13)

Country

United States of America (14)

State/Province

County