Postalveolar consonants are consonants articulated with the tongue near or touching the back of the alveolar ridge, further back in the mouth than the alveolar consonants, which are at the ridge itself, but not as far back as the hard palate (the place of articulation for palatal consonants).

Among the fricatives and affricates, a subtype called palato-alveolar consonants (see below) have IPA symbols as shown in the table. The alveolo-palatal and retroflex consonants are also postalveolar in their point of articulation, but they are given separate columns in the IPA chart, and illustrated with examples in their own articles.

Alveolo-palatals and palatoalveolars are commonly grouped as palatals in phonology, since these categories rarely contrast with true palatals.

From Wikipedia under the GNU Free Documentation License
Tue Jul 27 23:46:34 2010

ilion phonology and spelling
gwalla.livejournal.com
ilion phonology and spelling

gwalla

Sat, 27 May 2006 23:23:26 GM

*. postalveolar. . in this table, as usual, when . consonants. appear in space-separated​ pairs the first is unvoiced and the second voiced. all flaps and approximants are always voiced (in earlier stages i included unvoiced . and . , ...

centralization
cj-researcher.blogspot.com
centralization

CJ

Sat, 18 Oct 2008 05:00:00 GM

both . consonants. and vowels may be marked as retracted. in english, the plosive in the affricate /t /, as in the word church, is further back than an alveolar /t/, due to assimilation with the . postalveolar. fricative / /. ...

sanban: consonant chart meeting on 4/11/2008
michaelhadleyjapanese.blogspot.com
sanban: consonant chart meeting on 4/11/2008

Successeeker

ue, 22 Apr 2008 05:05:00 GM

voiced . postalveolar. fricative (yogh, three) voiced alveolar approximant (turned r) voiced alveolar lateral approximant (lower-case l) when i first looked at these differences and tried to ask imotosan about them. ...

From Google Blog Search: "Postalveolar consonant"
Tue Jul 27 23:46:37 2010

consonant pulmonic voiceless postalveolar affricate bmp
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consonant pulmonic voiceless postalveolar affricate bmp
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Xsampa d png
arthistoryclub.com
Xsampa d png
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Xsampa exclamationslash png
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Xsampa exclamationslas​h png
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From Yahoo Image Search: "Postalveolar consonant"
Tue Jul 27 23:46:37 2010