Unnamed Merian class starships
List of unnamed Federation starships of the .

Victims of the Burn  

At least six ships of the class were lost to the Burn in c. 3069. When dilithium spontaneously became inert, these vessels lost antimatter containment and exploded. ()

Sustaining Federation Headquarters (3189) 
When the  first found Federation Headquarters in 3189, at least two Merian-class starships supported the cloaking field. ()

A ship of this class was also visible on a diagram Fleet Admiral Charles Vance and Lieutenant Audrey Willa were examining when Captain Saru met with them. ()

Battle at Federation Headquarters 
Two ships of this class were sustaining the Federation Headquarters cloaking field when Osyraa was able to enter it aboard Discovery. () Both later participated in the Battle at Federation Headquarters with Osyraa (commanding Discovery.) At least one was positioned at a safe distance when Discovery detonated their warp core to destroy the Viridian, and was positioned to welcome Discovery back to Federation Headquarters at the culmination of the battle. ()

Archer Spacedock 

A Merian-class starship was docked at Archer Spacedock along with the  and a  starship during the reopening ceremony of Starfleet Academy in 3190. ()

Docked at Federation Headquarters (3190) 
This ship or another of this class was present at Federation Headquarters during a briefing on the Dark Matter Anomaly in 3190. ()

Merian class