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Pareodinia minima
Pareodinia minima 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. Below, 1990 listed this species under "Nomina dubia", terming it palynodebris.
Holotype: Yu Jingxian, 1982, pl.1, fig.9
Age: Late Kimmeridgian-Berriasian
Description: Cysts small, elliptical in outline. Periphragm only, approximately 1 µm thick. Surface has punctate ornamentation. Apical horn short, about 1/3 the length of cyst, clavate. End has an apical pore that connects with outer furrow. Parasuture low and flat, showing only at paracingulum. Intercalary archeopyle is typical type 31, large, polygonal.
Size: Cysts have total length of 38 - 39.1 µm and are 20 - 20.7 µm wide.
Comparison: This new species resembles P. minuta Wiggins (1975) in the size of its individuals but is differentiated from it by its larger apical horn and its typical type-3I intercalary archeopyle.
Lentin in Lentin and Williams, 1989, after examining the holotype, concluded that it is of organic composition, but is not a dinoflagellate. Below, 1990 listed this species under "Nomina dubia", terming it palynodebris.
Holotype: Yu Jingxian, 1982, pl.1, fig.9
Age: Late Kimmeridgian-Berriasian
Description: Cysts small, elliptical in outline. Periphragm only, approximately 1 µm thick. Surface has punctate ornamentation. Apical horn short, about 1/3 the length of cyst, clavate. End has an apical pore that connects with outer furrow. Parasuture low and flat, showing only at paracingulum. Intercalary archeopyle is typical type 31, large, polygonal.
Size: Cysts have total length of 38 - 39.1 µm and are 20 - 20.7 µm wide.
Comparison: This new species resembles P. minuta Wiggins (1975) in the size of its individuals but is differentiated from it by its larger apical horn and its typical type-3I intercalary archeopyle.