What was the most common form of sea life found in Oklahoma?

b. trilobite

Explanation:

Based on fossils found in Oklahoma especially in Coal County where the Lower Devonian formations are located, it is known that the Trilobite was the most common form of sea life in Oklahoma.

Trilobites are extinct and are believed to have been so for over 251 million years which would predate the dinosaurs. They were anthropoids that were believed to have been marine based.

The President may form and negotiate, but the treaty must be advised and consented to by a two-thirds vote in the Senate. Only after the Senate approves the treaty can the President ratify it. Once it is ratified, it becomes binding on all the states under the Supremacy Clause.