Geol. [f. as prec. + -ITE.] A broad-leaved fossil seaweed supposed to be allied to the genus Laminaria.
1839. Penny Cycl., XIII. 283/2. Laminarites. Brongniart, classing fossil fuci according to the analogy they offer to recent tribes, uses this term for one species found in the secondary strata of Aix, near La Rochelle.