Contrangularia reticulata, Wan Chuanbiao and Zhang Ying, 1990, p.11-12, pl.3, figs.2,4,6; Emendation: Mao Shaozhi et al., 1999, p.155.

Holotype: Wan Chuanbiao and Zhang Ying, 1990, pl.3, fig.2; Mao Shaozhi et al., 1999, pl.4, fig.9.
Location and horizon: Xin-Balhu Zhouqi of the Hailaer Basin, the second Member of the Damoguehe Formation, Hauterivian
Age: Early Cretaceous.

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Emended description:

Mao Shaozhi et al., 1999:

Description:
A species of Contrangularia which has commonly a slightly larger antapical horn than that right postcingular horn and reticulate ornaments on wall surface.
Cingulum indicated faintly by low ridges. Sulcus commonly not indicated.
Archeopyle suture weakly angular.

Affinities:
The species differs from N. granulate in having reticulate ornamentation on wall surface.