2/1/2023 0 Comments The age of the ring![]() ![]() And even in the above living examples, it is doubted that they are annual growth rings. While some tropical trees do produce distinct tree rings, most tropical tree species’ growth rings can be described as “indistinct” or “absent.” 1 Also, very few living or extinct Cycads have growth rings, the exceptions being Dioon spinulosum (commonly called the giant dioon or gum palm), Dioon edule (the chestnut dioon), and a few of the now-extinct Cycadeoidea genus. It should first be noted that not all trees produce growth rings. Counting, Cross-dating, and Carbon Dating ![]() But we will also briefly discuss clonal- and radiocarbon-dating assumptions and the problems associated with them. ![]() This paper will focus primarily on living trees with age estimates done by tree ring counting, looking at multiple-rings-per-year production, and rings produced during times of stress (drought and other climatological factors). ![]()
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