Tapeinosphaeridium hyalinum Raynaud, 1978

NOW Chytroeisphaeridia. Originally Tapeinosphaeridium, subsequently (and now) Chytroeisphaeridia.
Taxonomic junior synonym: Chytroeisphaeridia grossa, according to Riding (1990, p.311).

Holotype: Raynaud, 1978, pl.2, fig.18
Age: Callovian