The diagram below represents a series of rock layers. Each different type of shape shown in the layers represents a fossil of a different species. For example, the green circles represent one species while the purple stars represent another. Examine the
diagram, and then answer the question that follows.
350 million years ago
360 million years ago
370 million years ago
380 Tillion years ago
>
390 million years ago
For the location and time interval represented by these rock layers, when did the most drastic and sudden change in life forms
occur?
ОА.
370 million years ago
OB.
376 million years ago
OC. 360 million years ago
OD 382 million years ago