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The Quaternary spans from 2.58 million years ago to present day, and is the shortest geological period in the Phanerozoic Eon. It features modern animals, and dramatic changes in the climate. It is divided into two epochs: the Pleistocene and the Holocene. The Pleistocene lasted from 2.58 million to 11,700 years ago.
Prehistoric animals of the Phanerozoic Eon. Subcategories. This category has the following 3 subcategories, out of 3 total. ...
The Phanerozoic Eon (Greek: period of well-displayed life) marks the appearance in the fossil record of abundant, shell-forming and/or trace-making organisms. It is subdivided into three eras, the Paleozoic , Mesozoic and Cenozoic , with major mass extinctions at division points.
c. 538.8 ± 0.6 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 Ediacaran fauna disappears, while the Cambrian explosion initiates the emergence of most forms of complex life, including vertebrates ( fish ), arthropods ...
The Phanerozoic Eon, the current geological eon in the geologic time scale, covering the last ~541 million years on Earth.It is preceded by the Precambrian supereon.. This category contains events which happened in the Phanerozoic, a division of the geologic time scale.
Prehistoric life of the Phanerozoic Eon Subcategories. This category has the following 8 subcategories, out of 8 total. ... Phanerozoic animals (3 C) C. Cenozoic life ...
The Cambrian–Ordovician extinction event, also known as the Cambrian-Ordovician boundary event, [1] was an extinction event that occurred approximately 485 million years ago in the Paleozoic era of the early Phanerozoic eon. [2]
Phanerozoic species: Phanerozoic life by Linnaean taxonomic rank of species for the geologic time eon between 541 million years ago and the present day.