[CyberCowboy777]

empirical support?

Verifiable or provable by means of observation or experiment: empirical laws

or

Relying on or derived from observation or experiment: empirical results that supported the hypothesis

[AntiGuv]

Both forms of empirical support apply; the paleontological record in its totality provides the empirical support for the theory of evolution, which systematizes those observations. Genetics, ecology, and taxonomy provide further empirical support for the processes involved within evolutionary science.