Four logs have an estimated tree height in excess of 100m,a value not reached today by any extant tropical rainforest tree.These values are not.however,unrealistic.Equations used to calculate tree height from DBH are known to be of limited value for exceptional tree.Here,however,with log n1 being 80 cm in diameter at 67 m above the base,it is difficult to hypothesize an original height lower than 80-85 m.