Back
Contrangularia granulata
Contrangularia granulata, Wan Chuanbiao and Zhang Ying, 1990, p.12, pl.3, figs.7-9; Emendation: Mao Shaozhi et al., 1999, p.155.
Holotype: Wan Chuanbiao and Zhang Ying, 1990, pl.3, fig.8.
Location and horizon: Xin-Balhu Zhouqi of the Hailaer Basin, the second Member of the Damoguehe Formation, Hauterivian.
Age: Early Cretaceous.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Emended description:
Mao Shaozhi et al., 1999, p.155:
Description:
A species of Contranularia that has usually a longer and narrow left precingular horn upwards, a short and broad right precingular horn downwards and granulate ornamentation on wall surface.
Affinities:
The species differs from Contrangularia reticulate in having granulate ornamentation on wall surface and in being slightly smaller than the latter species.
Holotype: Wan Chuanbiao and Zhang Ying, 1990, pl.3, fig.8.
Location and horizon: Xin-Balhu Zhouqi of the Hailaer Basin, the second Member of the Damoguehe Formation, Hauterivian.
Age: Early Cretaceous.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Emended description:
Mao Shaozhi et al., 1999, p.155:
Description:
A species of Contranularia that has usually a longer and narrow left precingular horn upwards, a short and broad right precingular horn downwards and granulate ornamentation on wall surface.
Affinities:
The species differs from Contrangularia reticulate in having granulate ornamentation on wall surface and in being slightly smaller than the latter species.