Summoner archetypes are not able to take the Extra Evolution feat because they do not meet the "Eidolon ~ Summoner" special ability prerequisite.
The sources at http://paizo.com/pathfinderRPG/prd/ultimateMagic/ultimateMagicFeats.html state that the only prerequisite for the Extra Evolution feat is having Eidolon as a class feature.
Based on the above source material, this feat should still be available to any Summoner archetype that can summon an Eidolon.
Windows 8.1 32- and 64-bit, Java 7u45 and Java 6u45
At revision: 22505