Cephalopoda
Glossary
| ERA |
PERIOD |
When Period began
(millions of years ago) |
| Cenozoic |
Quaternary |
1.8 |
| Neogene |
23.8 |
| Paleogene |
65.0 |
| Mesozoic |
Cretaceous |
142 |
| Jurassic |
205.7 |
| Triassic |
248.2 |
| Paleozoic |
Permian |
290 |
| Carboniferous |
354 |
| Devonian |
417 |
| Silurian |
443 |
| Ordovician |
495 |
| Cambrian |
545 |
Recent - The last 10,000 years in the geological timescale,
also known as the Holocene Epoch, the most recent time-segment in the
Quaternary Period. A Recent species is one existing today or, at least,
sometime within the last 10,000 years.
About This Page
University of Hawaii, Honolulu, HI, USA
National Museum of Natural History, Washington, D. C. , USA
Katharina M. Mangold (1922-2003)
Laboratoire Arago, Banyuls-Sur-Mer, France
Page copyright © 1996 and
Page: Tree of Life
Geological Timescale for the Last 545 Million Years
Authored by
Richard E. Young, Michael Vecchione, and Katharina M. Mangold (1922-2003).
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