The phonology of [anterior] in Chumash supports recent proposals by Hansson (2001), Rose & Walker (2004), and Walker (2000a, 2000b) that long-distance consonant assimilation does not involve autosegmental spreading. Linking of the feature [anterior] is forbidden across morpheme boundaries, but long-distance [anterior] harmony is allowed across morpheme boundaries. The Chumash evidence therefore shows that assimilation can occur without autosegmental spreading.