Thuledinium groenlandicum Pocock and Sarjeant, 1972

Now Mendicodinium. Originally Thuledinium, subsequently (and now) Mendicodinium.
Taxonomic junior synonym: Mendicodinium woodhamense, according to Kunz (1990, p.38).

Holotype: Pocock and Sarjeant, 1972, pl. 2, fig.1; text-fig. 2
Paratypes: Pocock and Sarjeant, 1972
Locus typicus: Jameson Land, East Greenland
Stratum typicum: Middle Callovian

Original description: Pocock and Sarjeant, 1972, p. 352-353
Diagnosis: Vesicle ovoidal to almost ellipsoidal. Both the apical and antapical caps are small; the two sections comprising the main body are much larger. Both caps have rounded flanks and somewhat angular ends, the angular ends corresponding to the positions of the two sutures separating the two main sections of the vesicle; at this point, both caps and main sections are frequently slightly torn. The wall is thin and appears to be composed of a single layer. Its surface lacks major ornament but may exhibit slight pitting or punctae; it is frequently folded to a greater or lesser extent and may display marks formed by pressure of mineral grains.

Dimensions: Holotype: Length 108 µm, breadth 78.5 µm. Range(65 specimens): Length 91.5-124 µm, breadth 65-94 µm.