18 Specimen Results

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Phylum

Pteridophyta (17)

Order

Equisetales (5)

Marattiales (3)

Trigonocarpales (9)

Family

Alethopteridaceae (3)

Calamitaceae (5)

Marattiaceae (3)

Medullosaceae (6)

Genus

Alethopteris (3)

Codonotheca (1)

Neuropteris (5)

has media

Has no media (17)

Individual/Organization

Period

Pennsylvanian (18)

Formation

Mazon Creek (18)

Country

United States of America (18)

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County