The Paleozoic (/ ˌpæli.əˈzoʊ.ɪk, - i.oʊ -, ˌpeɪ -/ PAL-ee-ə-ZOH-ik, -⁠ee-oh-, PAY-; [1] or Palaeozoic) Era is the first of three geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma at the start of the Mesozoic Era. [2] The Paleozoic is subdivided into six geologic ...

Apr 4, 2025 · Paleozoic Era, major interval of geologic time that began 538.8 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history. The major

La era paleozoica es la primera del eón fanerozoico, que se inició hace 540 millones de años y se extiende hasta la actualidad. También se la conoce como la “era de los invertebrados”. El …

The meaning of PALEOZOIC is of, relating to, originating in, or being an era of geologic history that extends from the beginning of the Cambrian to the close of the Permian and is marked by the culmination of nearly all classes of invertebrates except the insects and in the later epochs by the appearance of terrestrial plants, amphibians, and reptiles; also : relating to the corresponding ...

El Paleozoico se divide en seis períodos: Cámbrico (la vida animal florece en los mares), Ordovícico (dominan los invertebrados), Silúrico (primer animal de respiración aérea), Devónico (aparecen peces con escamas duras y los anfibios), Carbonífero (aparecen grandes bosques de helechos, primeros reptiles y los primeros insectos ...

The Palaeozoic (or Paleozoic) era is the earliest of the three eras of the Phanerozoic. Its name means early life. It lasted from about 541 to 252 million years ago (mya) and ended with the greatest extinction event, the Permian–Triassic extinction event. The Palaeozoic was the beginning of plants and animals. In particular, fish dominate the Palaeozoic.

The Paleozoic is bracketed by two of the most important events in the history of animal life. At its beginning, multicelled animals underwent a dramatic in diversity, and almost all living animal phyla appeared within a few millions of years. At the other end of the Paleozoic, the largest mass extinction in history wiped out approximately 90% of all marine animal species. The causes of …

La era paleozoica, era primaria o simplemente Paleozoico, fue una de las eras de la escala temporal geológica, es decir, la escala con que se mide la historia del mundo.

O Paleozoico foi uma época de dramáticas mudanças geológicas, climáticas e evolutivas. O Cambriano testemunhou a diversificação da vida mais rápida e generalizada na história da Terra, conhecida como a Explosão Cambriana, na qual a maioria …

Jun 20, 2013 · The Paleozoic Era occurred from about 542 million years ago to 251 million years ago. It was a time of great change on Earth.