Evolution of Sirenians
| The Sirenia Evolutionary Series | |||||
|---|---|---|---|---|---|
| Appearance | Taxa | Relationships | Status | Description | Image |
| 50 Ma |
Genus:
|
A primitive sirenian. |
|||
| 40 Ma |
Genus:
|
||||
| ??? Ma |
Genus:
|
||||
| 48.6–33.9 Ma |
Genus:
|
An evolutionary bridge between primitive land-dwelling sirenians to aquatic sirenians |
|||
| ??? Ma |
Genus:
|
||||
Read more about this topic: List Of Transitional Fossils
Famous quotes containing the words evolution of and/or evolution:
“Historians will have to face the fact that natural selection determined the evolution of cultures in the same manner as it did that of species.”
—Konrad Lorenz (1903–1989)
“By contrast with history, evolution is an unconscious process. Another, and perhaps a better way of putting it would be to say that evolution is a natural process, history a human one.... Insofar as we treat man as a part of nature—for instance in a biological survey of evolution—we are precisely not treating him as a historical being. As a historically developing being, he is set over against nature, both as a knower and as a doer.”
—Owen Barfield (b. 1898)