Category:First appearances of taxa

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Single-celled life

Multicellular life

Arthropods Molluscs

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Earliest fossils

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Earliest oxygen

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Pongola glaciation*

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Atmospheric oxygen

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Huronian glaciation*

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Sexual reproduction

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Earliest multicellular life

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Earliest plants

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Earliest animals

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Cryogenian ice age*

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Ediacaran biota

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Cambrian explosion

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Hirnantian glaciation*

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Earliest tetrapods

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Earliest apes / humans

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Quaternary ice age*

(million years ago)

*Ice Ages

Subcategories

This category has the following 4 subcategories, out of 4 total.

F

First appearances of genera (1 C)
First appearances of species (1 C)

P

Phanerozoic first appearances (5 C)
Proterozoic first appearances (1 C, 3 P)

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