Sequoia dakotensis
Late Cretaceous (Maastrichtian)
Hell Creek Formation
Harding County
South Dakota, USA.

A fossil specimen of Sequoia dakotensis, an extinct redwood species from the Cretaceous of North America. This plant represents an early member of the redwood lineage, closely related to modern Sequoia and providing insight into ancient conifer-dominated forest ecosystems.
Unusually large 38mm cone