NaturePresentglobalmedium confidence

Oceanic manta rays' pectoral fins commonly span up to about 7 meters, with the largest recorded individuals reaching roughly 8.8 meters.

Notes on verification

Core figures (common ~7m, max ~8.8m) are corroborated across multiple sources, but exact maximum varies (6.7m-9.1m) depending on source and species split between M. birostris and M. yarae. General order of magnitude is well supported.

Sources