Temporal range: Middle Devonian
Wattieza is the earliest known tree.
The crown of Wattieza, discovered in 2005, was united with its root and trunk, known since 1870. The fossilized grove of "Gilboa stumps" had been described as Eospermatopteris, though the complete plant remained unknown.
Wattieza had fronds rather than leaves, and reproduced with spores.
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