What is considered a single class feature?

[Master_Crafter]

For instance, when a Ranger with the Warden archetype (UC) gains Rage, does he also gain Greater Rage, Tireless Rage, and (eventually at epic levels) Mighty Rage, or does he just get vanilla Rage?

Or when a Bard with the Sound Striker archetype (UM) replaces the Suggestion performance, does he also replace the Mass Suggestion performance, or does he gain this as normal when he reaches 18th level?

While this is plain for those class features which state in a single entry how those abilities progress, or with those archetypes which specify the replacement of one or more level-dependent acquisitions or advancements of a class feature (such as is the case with some of the fighter's archetypes concerning the Weapon and Armor Training features), for others is is considerably more vague as they are listed as separate class features which seem to enhance or progress one another.

Where is the fine line?

[Jiggy]

Master_Crafter wrote:

For instance, when a Ranger with the Warden archetype (UC) gains Rage, does he also gain Greater Rage, Tireless Rage, and (eventually at epic levels) Mighty Rage, or does he just get vanilla Rage?

Or when a Bard with the Sound Striker archetype (UM) replaces the Suggestion performance, does he also replace the Mass Suggestion performance, or does he gain this as normal when he reaches 18th level?

While this is plain for those class features which state in a single entry how those abilities progress, or with those archetypes which specify the replacement of one or more level-dependent acquisitions or advancements of a class feature (such as is the case with some of the fighter's archetypes concerning the Weapon and Armor Training features), for others is is considerably more vague as they are listed as separate class features which seem to enhance or progress one another.

Where is the fine line?

Off the top of my head, I'd say anything with its own heading is its own class feature.

[Dennis Baker]

Generally speaking you get one section.

Rage...

Until the next bolded section. In many cases archetypes explicitly give you later class features, for example many alchemist archetypes replace each bump in poison resistance with something new, or don't replace it.