Dome Fossil
The Dome Fossil will turn into the Rock-and-Water type Kabuto. Kabuto evolves into Kabutops at level 40, and can learn powerful attacks such as Aqua Jet, Rock Slide and X-Scissor, which can cause major damage to opponents due to Kabutops' high Attack and Speed. The Kabuto family's abilities are Swift Swim and Battle Armor.
Helix Fossil
The Helix Fossil will turn into the Rock-and-Water type Omanyte. Omanyte evolves into Omastar at level 40, and excels in Defense and Special Attack. It has access to strong attacks such as Hydro Pump and Ice Beam, as well as support moves such as Knock Off, Iron Defense and Spikes. The Omanyte family's abilities are Swift Swim and Shell Armor.
Old Amber
The Old Amber will turn into the Rock-and-Flying type Aerodactyl. Aerodactyl is a powerful sweeper or lead for any team and out-speeds the majority of Pokemon. It can dish out powerful attacks such as Stone Edge, Dragon Claw and Earthquake, and can also set up traps such as Stealth Rock. Aerodactyl's abilities are Rock Head and Pressure.
Root Fossil
The Root Fossil will turn into the Rock-and-Grass type Lileep. Lileep evolves into Cradily at level 40, and is a very sturdy Pokemon able to take hits as well as dish them out. Attacking options include Stone Edge, Earthquake and Giga Drain, and support options include Ingrain, Barrier, Recover and Mirror Coat. The Lileep family's ability is Suction Cups.
Claw Fossil
The Claw Fossil will turn into the Rock-and-Bug type Anorith. Anorith evolves into Armaldo at level 40, and boasts remarkably high Attack and Defense, but low Speed. Armaldo can boost its Speed with Rock Polish and proceed to attack with Stone Edge, X-Scissor, Earthquake or Aqua Tail. The Anorith family's ability is Battle Armor.
Skull Fossil
The Skull Fossil will turn into the Rock type Cranidos. Cranidos evolves into Rampardos at level 40 and boasts the highest Attack stat of all fossil Pokemon. Rampardos also has access to the powerful Head Smash attack. This power comes at the cost of both sturdiness and speed. The Cranidos family's ability is Mold Breaker.
Armor Fossil
The Armor Fossil will turn into the Rock-and-Steel type Shieldon. Shieldon evolves into Bastiodon at level 40 and boasts the highest Defense and Special Defense of all fossil-based Pokemon. Bastiodon has access to the Metal Burst attack, which deals damage to the opponent equal to 1 1/2 times the damage dealt to Bastiodon. The Shieldon family's ability is Sturdy.