You are working with a research group and discover fossils of large animal. Upon close examination, it looks to be a mammal and an ancestor to the modern tiger, that you temporarily name “Species X’until you learn more about it. Using
your knowledge of the fossil record, you attempt to determine its relative age. You know that
evolved before
species X,
had already evolved and gone extinct before species X evolved, and
did not evolve
until after species X went extinct.
. A. Winged insects, Dinosaurs, Humans
B. Trilobites, Reptiles, Birds
C. Humans, Dinosaurs, Flowering plants
.
.
D. Dinosaurs, Invertebrates, Land plants