55 Specimen Results

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Phylum

Pteridophyta (35)

Order

Equisetales (9)

Lepidodendrales (1)

Marattiales (13)

Trigonocarpales (13)

Class

Family

Alethopteridaceae (5)

Calamitaceae (9)

Lepidodendraceae (1)

Marattiaceae (13)

Medullosaceae (8)

Genus

Alethopteris (5)

Codonotheca (2)

Lepidodendron (1)

Neuropteris (6)

Pecopteris (13)

has media

Has no media (53)

Individual/Organization

Sternberg, G.F. (20)

Zakrzewski, R.J. (1)

Mrs. Danforth, F. (34)

Period

Pennsylvanian (53)

Formation

Mazon Creek (55)

Country

United States of America (55)

State/Province