based on consonant correspondences in stem-initial position. {| class="wikitable" style="text-align: center;" |- style="line-height: 1.1em;" ! colspan="2" | ! Labial ! Apical ! ApicalFricated ! Velar ! VelarLabial ! Glottal |- ! rowspan="4" | Plosive ! voiced | || || || || || |- ! plain | || || || || || |- ! glottalized | || || || || || |- ! aspirated | || || || || || |- ! colspan="2" | Nasal | || || || || || |- ! colspan="2" | Fricative | || || || || || |- ! colspan="2" | Glide | || || || || || |} The evidence for comes from prefixes; has not been found in stem-initial position and thus is in parentheses above. Hale reconstructs the nasalization feature for nasal vowels. Vowel quality and prosodic features like vowel length, tone, and stress have not yet been reconstructed for the Tanoan family. Hale (1967) gives certain sets of vowel quality correspondences. The following table illustrates the reconstructed initial consonants in Proto-Tanoan and its reflexes in the daughter languages. {| class="wikitable" style="text-align: center; line-height: 1.1em;" |+ style="line-height: 1.5em;" | Initial consonants in proto-language and daughter languages ! rowspan="2" | Proto-Tanoan ! rowspan="2" | Tiwa ! rowspan="2" | Tewa ! rowspan="2" | Towa ! rowspan="2" | Kiowa | rowspan="16" | ! colspan="2" | Proto-Tanoan ! rowspan="2" | Tiwa ! rowspan="2" | Tewa ! rowspan="2" | Towa ! rowspan="2" | Kiowa |- style="font-size: x-small;" ! consonant !! environment |- ! | || || ∅ || ! !! | || || | rowspan="3" | |- ! | || || || ∅ ! rowspan="2" | ! style="font-weight: normal; font-size: x-small;" | before oral vowel | || || |- ! | || || || ! style="font-weight: normal; font-size: x-small;" | before nasal vowel | rowspan="2" | | rowspan="2" | | rowspan="2" | |- ! | || || || ! !! | |- ! | || || || ! !! | rowspan="2" | | rowspan="2" | | | |- ! | rowspan="2" | | rowspan="2" | | rowspan="2" | || ! !! | | rowspan="2" | |- ! | ! !! | rowspan="2" | | | rowspan="2" | |- ! | || || | rowspan="2" | ! !! | | rowspan="2" | |- ! | || || ! !! | || | rowspan="2" | |- ! | || | rowspan="2" | | rowspan="2" | ! !! | || |