The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. ... the Nautiloids flourished during the early Paleozoic era, from the Late Cambrian, where they constituted the …

Paleozoic Era Timeline and Periods. The Paleozoic Era is divided into six periods, depending on various features like tectonic and geological environment, evolution of flora and fauna, climate, marine regressions and transgressions, etc. Refer to the following image to understand the timeline of this era, depending on the variation of ...

This timeline of natural history summarizes significant geological and biological events from the formation of the Earth to the arrival of modern humans. ... c. 538.8 ± 0.2 Ma – beginning of the Cambrian Period, the Paleozoic Era and the current Phanerozoic Eon. End of the Ediacaran Period, the Proterozoic Eon and the Precambrian Supereon.

The phanerozoic timeline given below shows some of the life forms that developed during the phanerozoic era. Life steadily became more diversified and new species developed. ... The paleozoic era is the earliest era which means ancient life. Fossil from the Paleozoic era includes plants and animals that are completely extinct. The Mesozoic era ...

The second timeline shows an expanded view of the most recent eon. In a similar way, the most recent era is expanded in the third timeline, the most recent period is expanded in the fourth timeline, and the most recent epoch is expanded in the fifth timeline. ... The Paleozoic ("old life") era was the first and longest era of the Phanerozoic ...

The geologic time scale, or geological time scale, (GTS) is a representation of time based on the rock record of Earth.It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists ...

Phanerozoic Eon, the span of geologic time extending about 541 million years from the end of the Proterozoic Eon (which began about 2.5 billion years ago) to the present. The Phanerozoic, the eon of visible life, is divided into three major spans of time largely on the basis of characteristic assemblages of life-forms: the Paleozoic (541 million to 252 million years ago), Mesozoic (252 …

Jun 16, 2022 · Following the Paleozoic era is the Mesozoic era (252 to 66 million years ago), which is referred to as “the Age of the Dinosaurs”. The dinosaurs roamed and dominated the Earth. However, a mass extinction event occurred. ... The section is split into geological periods in the form of a timeline. Find out how life arrived on Earth, why, and ...

Rocks from the earliest well-established ice age, called the Huronian, have been dated to around 2.4 to 2.1 Ga (billion years) ago during the early Proterozoic Eon. Several hundreds of kilometers of the Huronian Supergroup are exposed 10 to 100 kilometers (6.2 to 62.1 mi) north of the north shore of Lake Huron, extending from near Sault Ste. Marie to Sudbury, northeast of Lake …

* Dates from the International Commission on Stratigraphy's International Stratigraphic Chart, 2009; colors adopted from the Commission for the Geological Map of the World, 5/26/2011. Allen G. Collins created this page, 11/26/94; Robert Guralnick and Brian R. Speer made revisions, 9/15/95; Brian R. Speer made further modifications, 6/4/98; Allen G. Collins reordered the time …