Thursday, March 29, 2012

Science: Geologic Time Scale


One of the coolest nuances about our planet earth is that it curates its own museum of natural history through the fossil record. It is truly remarkable that tangible specimens of early invertebrates, the first jawed fishes, primitive amphibians, the first feathered dinosaurs (who grandfathered all modern birds!), and many, many proto-humans have been preserved til present day. The tree of life is a grand old thing, of which we're just one small branch!

I’d like this chart more if it had the Carboniferous rather than American name. It ought to read Precambrian, Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretacious, Tertiary, Quarternary.  Just remember the mnemonic, "Pregnant Camels Often Sit Down Carefully, Perhaps Their Joints Creak Too Quietly."

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