Local vs. non-local consonantal intervention in vowel harmony

In this paper I address the issue of consonantal intervention in vowel harmony. A consonant may be eligible to block harmony at the segmental level, by virtue of being highly placed in the sonority scale and also as a result of sharing some feature with the triggering segment. However, all attested cases of harmony blocking by consonants in a non-local position (in Assamese, Lango, Yucatec Maya, etc.) are prosodically governed in the coda. In all these languages, the presence of closed syllables results in the non-propagation of harmony because coda consonants are assigned a mora.