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A species of Seed Fern (Sphenopteris obtusiloba) is a fossil fern in the Carboniferous Era.

Seed Fern

A species of Seed Fern (Sphenopteris obtusiloba) is a fossil fern in the Carboniferous Era.

A species of Seed Fern (Sphenopteris latifolia) is a fossil fern in the Carboniferous period.

Seed Fern

A species of Seed Fern (Sphenopteris latifolia) is a fossil fern in the Carboniferous period.

Eremopteris artemisiaefolia is a species of "a genus of fossil ferns, separated from Sphenopteris." -Whitney, 1911

Fossil Fern

Eremopteris artemisiaefolia is a species of "a genus of fossil ferns, separated from Sphenopteris."…