the palezoic and the period is devonian!!
your welcome!
Fish first developed in the Paleozoic Era
Well they appeared in the Precambrian Era, as bacteria. The Paleozoic, as trilobites, brachiopods and fish.
The fish appear quite large.
Man appeared in the era of Cenozoic.
If you are asking what era the fish ORIGINATED, then your answer is the Cambrian Period, which was during the Paleozoic Era (544-245 million years ago). They started off as invertebrates, however. The first vertebrate that was a fish was the jawless fish in the Ordovician period. The first vertebrate that was a fish was the jawed fish in the Silurian period.
Fish are animals that have been around for millions of years and are currently part of the modern era, known as the Cenozoic era. They have evolved and adapted over time to inhabit a wide variety of aquatic environments around the world.
probably mesozoic era
Vertebrates first appeared during the Paleozoic era.
a fish appear to be bloated when seen in aquarium because of refraction of light
The Mesozoic Era
the Cenozoic era
Pliocene there were also a few other species around at the time some of them bigger than the modern great white.