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Temporal range: Middle Devonian
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.
References[change | change source]
- Michelle Carr, Cosmos 2007. Wattieza is world's oldest tree. 
- Stein W.E. et al 2007. "Giant cladoxylopsid trees resolve the enigma of the Earth's earliest forest stumps at Gilboa", Nature 446:904-907.
- Meyer-Berthaud B. & Decombeix A.L. 2007. "Palaeobotany: A tree without leaves". Nature 446 (7138): 861–862. doi:10.1038/446861a. PMID 17443169.
- CNN.com: Oldest tree had fronds, not leaves.