67 Specimen Results

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Phylum

Echinodermata (5)

Pteridophyta (35)

Order

Equisetales (9)

Euomphalina (3)

Lepidodendrales (1)

Marattiales (13)

Spiraculata (5)

Class

Cephalopoda (1)

Stenolaemata (2)

Family

Alethopteridaceae (5)

Calamitaceae (9)

Fenestellidae (2)

Lepidodendraceae (1)

Marattiaceae (13)

Medullosaceae (8)

Genus

Alethopteris (5)

Codonotheca (2)

Lepidodendron (1)

Neuropteris (6)

Pecopteris (13)

Individual/Organization

Sternberg, G.F. (27)

Walker, M.V. (3)

Knobloch, W.J. (3)

Mrs. Danforth, F. (34)

Period

Mississippian (7)

Pennsylvanian (52)

Formation

Mazon Creek (54)

Member

Country

United States of America (67)

County