Tetranguladinium cruciforme Yu Jingxian et al., 1983 ex Chen et al., 1988

The name Tetranguladinium cruciforme was not validly published in Yu Jingxian et al., 1983 since these authors did not designate a holotype.
Holotype: Yu Jingxian et al., 1983, pl.29, fig.8 (designated by Chen et al., 1988)
Age: Cretaceous