Parry isn't a valid defense against a Poison qualifier attack.
The description of Parry specifically says it can be used against Physically delivered Poison Qualifier attacks.
How can something have a carrier and an effect?
Carrier Attack is pretty clearly defined as a Physical delivery attack that causes a particular Effect; that is, the swing Carries the Effect, and if it hits you, you'll have to take it. Most Effects, such as Sleep or Paralysis, don't bypass Armor by default, and therefore when applied as a Carrier must deal Body damage to take effect. Chaos and Healing are noted as bypassing Armor, so attacks that use these Carriers also bypass Armor due to the Effect; Body isn't defined the same way, and probably should be, but the name heavily implies that if you're hit, the damage goes straight to Body and bypasses Armor, and as such attacks that use the Body Carrier also bypass Armor.
In the case of Poison Coatings, it's a Physical delivery attack that causes an Effect, and therefore a Carrier Attack; however, no Coatings in the base production list are Effects that bypass Armor by default, so none of the attacks that result from a Poison will, either.
Note that like all attacks that don't use a numeric value, Gas Globes, Trap Globes, and Spells do not have to penetrate Armor to have their Effects go through, which is why Carrier Attacks with things like Paralysis must hit Body but the equivalent Globe or Spell does not.
ETA: A list of every possible Carrier Attack would just be a list of every Effect in the game, plus a line that says "if you local Plot team sends out a particular Carrier, roll with it".