Figure 4. Lithology of sampled Moenave Formation outcrops in the Utah and Arizona, USA: St. George’s Discovery Site at Johnson Farm (SGDS), Olsen Canyon, and Potter Canyon. Sample numbers in bold indicate those that yielded specimens in the present work. Semiology follows the Federal Geographic Data Committee (2006).
darwinulocopine species, i.e., Darwinula stevensoni (Brady and Robertson, 1870) and D. cicatricosa Wakefield, 1994. This variability, along with those of the shape of dorsal and ventral
margins, layout in dorsal view and the magnitude of the cardinal angles, were also observed at the generic level by Rossetti and Martens (1998) while reviewing species of Darwinula,