Notes on some Pleistocene mammal migrations from the Palaearctic to the Nearctic

Björn KurtÉn
The following dates for mammalian migrations from the Palaearctic to the Nearctic are suggested: Smilodontine sabre-tooths, Elster (Kansan); black bears, Elster (Kansan); brown and grizzly bears, Wiirm (Wisconsin); wolverine, Saale (Illinoian). Correlation between the mammalian faunas in the Nearctic and the Palaearctic should be based on compilation of many additional migration items.