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Triaenosphaera
Taxonomy
Triaenosphaera was named by Deflandre (1973) [Sepkoski's age data: D Fame-u C Vise-u]. Its type is Triaenosphaera sicarius.
It was assigned to Entactiniidae by Won (1997), De Wever et al. (2001); to Spumellaria by Sepkoski (2002); to Haplentactiniinae by Wang et al. (2003); to Haplentactiniidae by Feng et al. (2004); and to Tetrentactiniini by Noble et al. (2017).
It was assigned to Entactiniidae by Won (1997), De Wever et al. (2001); to Spumellaria by Sepkoski (2002); to Haplentactiniinae by Wang et al. (2003); to Haplentactiniidae by Feng et al. (2004); and to Tetrentactiniini by Noble et al. (2017).
Species