Christopher Columbus landed on an island in the Bahamas $(Caribbean \, Sea)$ in which year?

Ancestral amphibians were tetrapods that evolved during

In which era were the reptiles dominant?

The fish-like giant reptile which existed $200$ million years ago (mya) was:

Identify the organism based on the following characteristics:
- They were land reptiles.
- They had huge, fearsome, dagger-like teeth.

The origin of seeds in land plants was achieved about $345 \; \text{million}$ years ago, in lineages recognized as ancestral to all more advanced vascular plants in: