In Fijian, trilling is rare in these sounds, and they are frequently distinguished by being postalveolar.
[3] In Malagasy, they may have a rhotic release, [ʈɽ̝̊ ɳʈɽ̝̊ ɖɽ̝ ɳɖɽ̝], be simple stops, [ʈ ɳʈ ɖ ɳɖ], or standard affricates, [ʈʂ ɳʈʂ ɖʐ ɳɖʐ].
Most post-trilled consonants are affricates: the stop and trill share the same place of articulation.
However, there is a rare exception in a few neighboring Amazonian languages, where a voiceless bilabially post-trilled dental stop, [t̪͡ʙ̥] (occasionally written [tᵖ]) is reported from Pirahã and from a few words in the Chapacuran languages Wariʼ and Oro Win.
Shaded areas denote articulations judged impossible.