Pluriarvalium osmingtonense subsp. rostratum
From dinoflaj2
subsp. rostratum (Wiggins, 1975, p.106-107, pl.5, figs.1-2) Stover and Evitt, 1978, p.119. Holotype: Wiggins, 1975, pl.5, fig.1. Originally Pareodinia osmingtonensis subsp. rostrata, subsequently (and now) Pluriarvalium osmingtonense subsp. rostratum. Age: Late Jurassic. Parent: Pluriarvalium osmingtonense