FIGURE 1 in On the validity, synonymy and distribution of some Lapideacassaceae (Haptophyta)

FIGURE 1. Some Late Cretaceous representatives of the genus Mennerius. A. M. longus, Turonian, Ukraine; 48a, holotype. B. M. morosus, Turonian, Ukraine; 49a, holotype. C. Mennerius sp. A cf. M. bispinosus, Campanian, Ukraine. D. Mennerius sp. B cf. M. bispinosus, Lower Maastrichtian, Russia. E. M. cornutus, Lower Maastrichtian, Russia. F. Mennerius sp. A., Cenomanian, Israel. Scale bars 5 μm. (Figures 1A, 1B after Luljeva (1967); Figure 1C after Matveev (2015); Figures 1D–F, crossed nicols)