Palæozoic

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• pre-palæozoic — pre palæozoic, palatal, ine see pre B. 1 b, 3 …   Useful english dictionary

• Hexaemeron — • Signifies a term of six days, or, technically, the history of the six days work of creation, as contained in the first chapter of Genesis Catholic Encyclopedia. Kevin Knight. 2006. Hexaemeron     Hexaemeron …   Catholic encyclopedia

• Permian–Triassic extinction event — …   Wikipedia

• Chitinozoan — Temporal range: 489–358 Ma …   Wikipedia

• Late Devonian extinction — …   Wikipedia

• Mulde event — Key events of the Silurian view • edit 445 …   Wikipedia

• Kimberella — Taxobox image caption = Cast of a partial Kimberella fossil. The bulges at the top of the image are the sides of the organism, and surrounded the rim of the creature; these are further flanked with a line which may represent the extent of a… …   Wikipedia

• Great Oxygenation Event — O2 build up in the Earth s atmosphere. Red and green lines represent the range of the estimates while time is measured in billions of years ago (Ga). Stage 1 (3.85–2.45 Ga): Practically no O2 in the atmosphere. Stage 2 (2.45–1.85 Ga): O2 produced …   Wikipedia

• Cretaceous–Tertiary extinction event — Artist s rendering of bolide impact Badlands nea …   Wikipedia

• Extinction event — …   Wikipedia