Macroevolution is evolution over geologic time above the level of the species.
Geologic time lines are expressed in geologic eras and periods.
Macroevolution is evolution over eras above the level of the species.
macroevolution is evolution over what, above the level of the species?
a: plants
b: H 2 O
c: years
d: scale
e: gravity
f: eras
g: weathering
h: Joules