Abstract
Two coniferous fossil wood taxa are reported from the Hwawon Formation (middle Cretaceous) at Hwawon-myeon in Jeollanam-do, Korea: Agathoxylon sp. and Taxodioxylon sp. Agathoxylon has a clear affinity with the Araucariaceae and its occurrence in the Hwawon Formation suggests that a dry and tropical–subtropical climate prevailed in this area during the middle Cretaceous. The presence of traumatic resin canals in the Taxodioxylon specimens indicates that flooding occurred repeatedly as part of an alternation between dry and rainy seasons. The low diversity observed for the Cretaceous fossil wood assemblages from the Korean Peninsula could be explained by the palaeoclimatologically stressful environment, as a dry tropical–subtropical climate prevailed over the region at that time.
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