Talk:North American land mammal age

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Comment[edit]

The NALMA list shows the Puercan interval beginning at 66.5 Mya instead of the customary 65.5 Mya corresponding to the Iridium Anomaly. Is this a typo? A holdover from original 1941 establishment of the NALMA before the Iridium Anomaly was discovered? In either case, it should be made consistent with current NALMA definitions, whatever they are.

74.162.148.61 (talk) 19:21, 20 April 2009 (UTC) Mike Sarles