The end-Triassic mass extinction (a 'Big Five' mass extinction) set up the dinosaurs up to diversify in the Jurassic and was caused by what natural event? Select the answer that best fits.
| a. |
glaciation (global ice-house) |
|
| b. |
competitive exclusion between dinosaurs and mammals |
|
| c. |
asteroid impact |
|
| d. |
None of the other answers fit. |
|
| e. |
significantly increased volcanic activity |