Re: cladistics origins?

[Dinogeorge@aol.com]

In a message dated 11/26/99 2:35:28 PM EST, bettyc@flyinggoat.com writes:

<< just how old is the science of cladistics? >>

In the US, it essentially dates back to the English-language publication of 
Hennig's work in German on phylogenetic systematics:

Hennig, W., 1966. Phylogenetic Systematics, University of Illinois Press, 
Urbana, Illinois: 263 pp.

Don't have a ref handy to Hennig's original work in German, but someone else 
on the list will no doubt have it.

In a nutshell, it's the synthesis of classification principles with 
evolutionary theory.