Template:Ordovician graphical timeline

From New World Encyclopedia
Key events in the Ordovician Period
-490 —
-485 —
-480 —
-475 —
-470 —
-465 —
-460 —
-455 —
-450 —
-445 —
 
 
 
Tremadocian
Floian
Dapingian
Darriwilian
Sandbian
Katian
Hirnantian
Hirnantian
Early Ordovician
Llanvirn
Llandeillo
Caradoc
Ashgill
 
 
First land plant spores[1]
Paleozoic era
Key events of the Ordovician period.
Left: ICS approved stages.
Right: "General" stages.
Axis scale: millions of years ago.

Credits

New World Encyclopedia writers and editors copied and adjusted this Wikipedia template in accordance with New World Encyclopedia standards. This article abides by terms of the Creative Commons CC-by-sa 3.0 License (CC-by-sa), which may be used and disseminated with proper attribution.The history of earlier contributions by wikipedians is accessible to researchers here:

The history of this article since it was imported to New World Encyclopedia:

Note: Some restrictions may apply to use of individual images which are separately licensed.

  1. Wellman, C.H., Gray, J. (2000). The microfossil record of early land plants. Phil. Trans. R. Soc. B 355 (1398): 717–732.