Question

How would a Paleozoic ocean be different than an ocean today? How would it be the same?

Answer 1

The Paleozoic Era, which lasted around 542 million years and ended 251 million years ago, was a period of significant change on Earth. The era started with the disintegration of one supercontinent and the emergence of another. Plants spread over the world. And the earliest vertebrate animals began to inhabit the land.

The Paleozoic Era

The Paleozoic Era began with the Cambrian Period, which lasted 53 million years and is best remembered for ushering in an explosion of life on Earth. The evolution of arthropods (ancestors of today's insects and crustaceans) and chordates was part of the "Cambrian boom" (animals with rudimentary spinal cords).

Life flourished in the waters during the Paleozoic Era. Following the Cambrian Period was the 45-million-year Ordovician Period, which is distinguished by an abundance of marine creatures in the fossil record.The trilobite, an armored arthropod that scurried over the seafloor for nearly 270 million years until becoming extinct, was perhaps the most famous of these invertebrates.

Step-by-step explanation:

Answer 2

The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great change on Earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land.

Life in the Paleozoic

The Paleozoic began with the Cambrian Period, 53 million years best known for ushering in an explosion of life on Earth. This "Cambrian explosion" included the evolution of arthropods (ancestors of today's insects and crustaceans) and chordates (animals with rudimentary spinal cords).

In the Paleozoic Era, life flourished in the seas. After the Cambrian Period came the 45-million-year Ordovician Period, which is marked in the fossil record by an abundance of marine invertebrates. Perhaps the most famous of these invertebrates was the trilobite, an armored arthropod that scuttled around the seafloor for about 270 million years before going extinct.