Seahawks add to secondary, signing cornerback Jamar Taylor

The Seahawks made a few more quick moves Thursday as NFL free agency entered a new phase, signing cornerback Jamar Taylor, fullback Nick Bellore and guard Marcus Martin. The team officially announced all the signings Thursday afternoon. No financial terms were immediately available, nor were corresponding moves announced.

Taylor’s may be the most significant as the 5-foot-11, 192-pounder figures to step into the competition at the nickel cornerback position, or the inside cornerback defending the slot, a spot where Seattle last year used Justin Coleman, who signed with the Lions in free agency.

Bellore, 29, becomes the only fullback on the team’s roster, a position at which Seattle has had at…