Differences

This shows you the differences between two versions of the page.

--- notes:history [2026/09/12 20:15]
109.82.160.80 old revision restored (2026/06/12 03:55)
+++ notes:history [2026/09/14 05:06] (current)
47.79.201.236 old revision restored (2026/09/03 19:04)
@@ Line 57: / Line 57: @@
     * 3.8 bya - first life on Earth
     * 3.5 bya - photosynthesis starts
+    * 3.3 bya - 2.8 bya - Vaalbara supercontinent exists
   * Proterozoic Eon : 2.5 bya - 550 mya
     * 2.4 bya - oxygen becomes significant component of the atmosphere
-    * 1 bya - multicellular plants (algae) and animals
     * 1 bya - 800 mya - Rodinia supercontinent exists
     * 770 - 750 mya - first ice age
-  * before 550 mya is aka the Precambrian Period or Supereon. After 550 mya is aka the Phanerozoic Eon.
+  * before 550mya is also known as the Precambrian Period or Supereon. After 550 mya is also known as the Phanerozoic Eon.
-  * Paleozoic (Primary) Era : 550 - 250 mya
+  * Paleozoic Era : 550 - 250 mya
     * Cambrian - small shelled animals, corals
     * Ordovician - starfish, jawless fish
     * Silurian - land plants, ferns, sharks, fish
-    * Devonian - first tetrapods - evolution of fish onto land
+    * Devonian - first tetrapods (lizards)
-    * Carboniferous - reptiles, amphibians, spiders, conifers, synapsids
+    * Carboniferous - reptiles, amphibians, spiders, confiers, synapsids
     * Permian - more synapsids (mammal-like reptiles)
   * 300 mya - 250 mya - last supercontinent Pangaea exists
-  * Mesozoic (Secondary) Era : 250 - 65 mya
+  * Mesozoic Era : 250 - 65 mya
     * Triassic - turtles, lizards, dinosaurs, mammals
     * Jurassic - squids, frogs, birds

DokuWiki

Site Tools

Differences

Page Tools