What is another name for the seed of a plant?

 The spermatophytes

Explanation:

also known as phanerogams comprise those plants that produce seeds, hence the alternative name seed plants. They are a subset of the embryophytes or land plants.

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.