Xenascus blastema

blastema (Davey, 1970, p.356, pl.5, figs.4-5) Stover and Helby, 1987a, p.128.  Holotype: Davey, 1970, pl.5, fig.4.  Originally Odontochitina, subsequently (and now) Xenascus.  Taxonomic senior synonym: Hystrichosphaera (as Phoberocysta, now Xenascus) ceratioides, according to Davey and Verdier (1971, p.27) - however, Stover and Helby (1987a, p.128) retained Xenascus blastema.  N.I.A..  Age: Cenomanian.

Parent: Xenascus