I think any of these creatures could have a name change before they are finalized, so I am not ruling that out. A few of them are pretty concrete, but most may be subject to renaming.
You know Rabbit, I had thought about how best to utilize the Poseidonal's size and massive bulk as a definitive factor in how they fit in within the culture and in other areas as visitors. I had considered some kind of massive effect centered around them like you suggest, but I also wanted to tie them into some of the ideas I had with the original dinosaur, the sauroposeidon. I wanted them to stand out as the dinosaurs most often trained and led in coastal areas as creatures which could slowly move around in moderately deep coastal waters and carry soldiers with potential ranged weapons and spell effects. Based on that idea, I think having the Poseidonal do something similarly helpful and coastline-oriented would also be great, as well as a potential protective field of some kind of effect. So I agree with your suggestion.
Also, I have no problem tying in the demonic creature being developed with bhu - I will edit that text to be more directly related to the campaign needs (they would not have been a direct result of the obyrith, but they would most certainly have been a major force in defending against extraplanar attacks on Nym (dinopriminal homelands). I would do it tonight, but I am super tired and uninspired at the moment.
Also, now that my presentation is done, I will have some more time to devote to these guys again.
You know, after thinking: if every animal that breathes air gets scent as a SQ, shouldn't any dinopriminal and guardinal as well? Also, I think it is in our best interests to try and get bhu to join us here with that line of thinking.
You must really like that little blurb about the sentient dinosaur dying and being turned into a bunch of demons, huh? It's funny because I don't get much time to write down thoughts like that, even though they come out so easily and lucidly in my mind.... Something tells me you would really like to play in my games, which end up usually having wicked cool elements like that come in to really turn the story up a notch. Just imagine if you ended up in a hellish dungeon somewhere, only to find that this carnosaur was in fact regaining his strength with the help of minions...
I know exactly how to tune up a sleepy storyline.
hehehehe