Stratigraphic \Strat`i*graph"ic\, Stratigraphical
\Strat`i*graph"ic*al\, a. (Geol.)
Pertaining to, or depended upon, the order or arrangement of
strata; as, stratigraphical evidence. --
{Strat`i*graph"ic*al*ly}, adv.
[1913 Webster] Stratigraphic