MCQOPTIONS
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| 1. |
Trilobites were evolved during which of the following period [CPMT 1999; MH CET 2000; BHU 2004] |
| A. | Salvian |
| B. | Cambrian |
| C. | Ordovician |
| D. | Pre-cambrian |
| Answer» C. Ordovician | |