Polystephanephorus speciosus

"speciosus" (Alberti, 1961, p.37, pl.9, fig.13) Riley and Sarjeant, 1972, p.3.  Holotype: Alberti, 1961, pl.9, fig.13; Stancliffe and Sarjeant, 1990, pl.5, fig.6.  NOW Adnatosphaeridium?.  Originally Cannosphaeropsis, subsequently Polystephanephorus, thirdly Cannosphaeropsis?, fourthly (and now) Adnatosphaeridium?.  Age: Bathonian-Callovian.

Parent: Polystephanephorus