Day 134. Big tooth

Detail of a Carcharodon megalodon tooth, or a “Jagged-tooth big-tooth” tooth.  I’ve got a couple of these, and this one despite being almost 4 inches long, is the smallest. Based on tooth size, and the largest teeth reach 7-8 inches, estimates suggest this shark species reached a total length of at least 16 metres (52 ft) and weighed over 50 tonnes. Not as big as previous estimates of 25m (82 ft), and well over 100 tonnes, but still a big fishy.

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