I'm working on an alien species for a fantasy-ish world I'm making, and I recently started on making a language for them. For the most part, their consonant-making abilities are very similar to humans, but with one very key difference: alveolar plosives can only appear in affricates, and not by themselves, due to having their tongue operate with two muscles conjoined in parallel instead of meeting at a point, making all alveolar plosives (or any other similar consonants that involve pressing the tip of the tongue against something) be affricates. What I'm curious about is, with that in mind, would it be reasonable for such a species to naturalistically have all of (in xSAMPA) /ts s dz z tS S dZ Z/, or even have alveolar affricates at all?
additional question: if not, would it make more sense for the language to have only palatal consonant analogs, but not any alveolar consonants?
(also I'm not entirely sure this is the right stackexchange branch to go to for help on something like this, so if it would better fit on the wordlbuilding one or something, please let me know so i can move it)