Biology Reference
In-Depth Information
Figure 3.1
Cycles of long-term
and short-term eustatic changes
in sea level. Eustatic refers
to an actual change in water
volume in contrast to relative
change that may involve move-
ment of the land. Modifi ed
from Haq and others 1987. Re-
printed with permission from
the American Association for
the Advancement of Science,
Washington, DC. Location
and age of the fossil fl oras:
Paraje Solo, Mexico, 3.5 Ma;
Chenque, Argentina, circa
23 Ma; Pié de Vaca, Mexico,
circa 25 Ma; Clarno, Or-
egon, 44 Ma; San Fernando,
California, circa 44 Ma (middle
Eocene).
