Archeops @ Focus Sash  
Ability: Defeatist  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Head Smash  
- Endeavor  
- Stealth Rock 
- Taunt / Tail Wind

Archeops @ Choice Scarf  
Ability: Defeatist  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Head Smash  
- Dual Wingbeat  
- U-turn / Earthquake 
- Switcheroo / Earthquake 

Archeops @ Heavy-Duty Boots  
Ability: Defeatist  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Head Smash  
- Dual Wingbeat  
- Earthquake / U-turn
- Roost  

Archeops @ Power Herb  
Ability: Defeatist  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Meteor Beam  
- Air Slash  
- Heat Wave  
- Focus Blast  

Thoughts: While Aerodactyl might seem like a superior Pokemon due to its higher speed and better abilities, Archeops has greater power and much more options. First of, the Lead set has Endeavor to bring opponents down to low HP and Head Smash to block Defog and Spin. Choiced sets can utilise Switcheroo to cripple walls and it has the ability to run Special sets. Defeatist still sucks, but imo Archeops is better than Aerodactyl.

Checks: It has the same checks as Aerodactyl, that being Ground-types and Fini, although Fini has a harder time, tanking its hits. Ground-types still do a great job, like Hippowdon and Landorus-Therian.

Partners: Balance teams utilise it has a breaker for either the physical or the special side and HO teams can still utilise it as their lead.