Labial–retroflex consonant

Labial–retroflex consonants are doubly articulated consonants that are co-articulated at the lips and the front part or underside of the tongue against the palate. They are only attested in Yele, an unclassified language of Rossel Island, Papua New Guinea.

Types
Several labial–retroflex consonants are attested in Yele: a voiceless plosive, a nasal , prenasalized (also analyzed as  but phonetically voiced), and postnasalized , all or most of which may also occur palatalized:  and possibly.