I prefer this one, from 1975 Coevolution Quarterly, by
Miklos Udvardy and Theodore Oberlander:<p><a href="https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~231745~5509023:World----Biogeographical-Provinces" rel="nofollow">https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~2...</a>