19 Specimen Results

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Phylum

Echinodermata (6)

Order

Spiraculata (6)

Class

Gymnolaemata (12)

Family

Pentremitidae (6)

Genus

Archimedes (12)

Pentremites (6)

has media

Has no media (8)

Period

Mississippian (18)

Formation

Country

United States of America (19)

County