Lithodinia? cantrellii (Sarjeant, 1972) Gocht, 1976

Now Lanterna. Originally Meiourogonyaulax?, subsequently Lithodinia?, thirdly (and now) Lanterna.
At the time of the transfer, Gocht, 1976, questionably included this species in Lithodinia.
Stover and Evitt, 1978, retained this species in Meiourogonyaulax Sarjeant, 1966.

Holotype: Sarjeant, 1972, pl.4, fig.3, pl.6, figs.1-2, text-fig.8
Locus typicus: Jameson Land, Greenland
Stratum typicum: Late Bathonian

Original diagnosis: Sarjeant, 1972, p.37-38: Meiourogonyaulax? cantrelli
Cyst ovoidal to subpolygonal, with apex thrown off in archaeopyle formation. Fields on the shell surface are demarcated by low, rather irregular septa, each of the fields of the epitract and hypotract is set apart from its neighbours, but septa along the line of the cingulum directly link the precingular and postcingular plates; plates 6"" and 1" are also linked by a septum. The fields reflect a tabulation of ?", 1av, 2a, 6", 6c, 5""", 1p, 1"""". The cingulum is broad and forms a laevo-rotatory spiral whose two ends differ in antero-posterior position by the cingulum breadth. It is separated by septa from the sulcus, which is also broad, extending to the antapex but separated from the apex by the septum linking field 6" to field 1" the area of the surface anterior to this septum is here termed the "anterior ventral" field (1av.).
Dimensions: Holotype- Iength 52 Ám, breadth 52 Ám. Range- Iength 52 to 75 Ám (mean 65.58 Ám). breadth 52 to 72.5 Ám (mean 62. 41 Ám).