Table 1 Records for the five regions where Beauprea-like fossils have been identified at 15-My intervals through the geological record.

Mean age was used to assign each species observed in a given study, although multiple entries are given if species occurred in successive 15-My intervals.

AntarcticaSE AustraliaRest of AustraliaZealandiaSouth America
Oldest pollen recorded (Ma)81.483.874.5*68.0
Period (Ma)Approximate epoch
84–70Upper Cretaceous6831*0
69–55Paleocene93945
54–35Eocene12111343
34–20Oligocene28461
19–5Miocene02330
<5Pliocene/Quaternary03060
Total records293432249
P (Fisher’s exact probability test, two-tailed) for
the last three periods combined
0.00990.33270.00010.3739
P (Fisher’s exact probability test, two-tailed) for
the last three periods omitted
0.26510.70460.88390.2778

*“Upper Cretaceous” Couper (67).