[Inyo-Mono]

Holliday and Meltzer believe that the disappearance of Clovis spear points is more likely the result of a cultural choice rather than a population collapse.

So the Paleo Indians, as a "culture" decided to quit make Clovis points?

[rdl6989]

Clovis became Folsom.

http://www.thefurtrapper.com/prehistoric_indians.htm

http://www.saguaro-juniper.com/i_and_i/history/clovis_folsom_transition.htm

http://www.ele.net/art_folsom/pre-clovis_2004/preclovis2004.htm

[decimon]

So the Paleo Indians, as a "culture" decided to quit make Clovis points?

I read this as saying that sites of Clovis occupation were temporary and that different sites found provide a continuous record of Clovis occupation, hence existence.