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| | Palaeos Cenozoic: The Cenozoic Era |
 | | More than 95% of the Cenozoic era belongs to the Tertiary period, an unreasonable division which reflects the arbitrary manner in which the geological epochs were first named. |
 | | From 1760 to 1770, Giovanni Arduino, inspector of mines in Tuscany and later professor of mineralogy at Padua, set forth the first classification of geological time, dividing the sequence of the Earth's rocks into Primitive, Secondary, and Tertiary. |
 | | During the 18th century the names Primary, Secondary, and Tertiary were given to successive rock strata, the Primary being the oldest, the Tertiary the more recent. |
| www.palaeos.com /Cenozoic/Cenozoic.htm (2112 words) |
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