Back
Pareodinia elongata
Pareodinia elongata Yu Jingxian, 1982
Lentin in Lentin and Williams, 1989, after examining the holotype, concluded that it is of organic composition but is not a dinoflagellate.
Holotype: Yu Jingxian, 1982, pl.1, fig.6
Age: Late Jurassic-Early Cretaceous
Description: Proximate cysts, long elliptical in outline, their length being 2 - 3 times their width. Periphragm only, 0.5 - 1 µm thick. Surface smooth or finely punctate. One elongate apical horn, exceeding length of cyst; tubular; hollow center; end shows widening. Apical pore elliptical. Intercalary archeopyle frequently fails to show.
Size: Cysts 60.2 - 80 µm long and 25 - 30 µm wide.
Comparison: This new species is distinguished from other species in the genus by its conspicuously elongated apical horn.
Lentin in Lentin and Williams, 1989, after examining the holotype, concluded that it is of organic composition but is not a dinoflagellate.
Holotype: Yu Jingxian, 1982, pl.1, fig.6
Age: Late Jurassic-Early Cretaceous
Description: Proximate cysts, long elliptical in outline, their length being 2 - 3 times their width. Periphragm only, 0.5 - 1 µm thick. Surface smooth or finely punctate. One elongate apical horn, exceeding length of cyst; tubular; hollow center; end shows widening. Apical pore elliptical. Intercalary archeopyle frequently fails to show.
Size: Cysts 60.2 - 80 µm long and 25 - 30 µm wide.
Comparison: This new species is distinguished from other species in the genus by its conspicuously elongated apical horn.