From Fensome et al., 2019:
Diacanthum argentinum Quattrocchio and Sarjeant, 1992, p.86–87(al. 2–238 — 2–239), pl.4, figs.10–13; pl.6, fig.4; textfigs.
8A–B. Holotype: Quattrocchio and Sarjeant, 1992, pl.6, fig.4. Age: middle–late Tithonian.

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