Baragwanathia longifolia
Late Silurian / Early Devonian
Norton Gully Sandstone
Eglinton Cutting
Victoria, Australia

10mm early lycopod frond on 122mm matrix. When discovered it was thought to be the earliest known land plant.

See this video on the history of Baragwanathia: Baragwanathia History

Take a look at this amazing 3D reconstruction of the Baragwanathia plant from SketchFab: Baragwanthia 3D Recontstruction