"Amphidiadema rectangularis subsp. samuelsonii" (Kjellström, 1973, p.22, fig.18) Lentin and Williams, 1976, p.61.
TYPE: Holotype: Kjellström, 1973, fig.18. HISTORY: Originally Deflandrea rectangularis var. samuelsonii, subsequently Deflandrea rectangularis subsp. samuelsonii, thirdly Amphidiadema rectangularis subsp. samuelsonii. SYNONYM(S): Taxonomic senior synonym: Triblastula (now Hystrichosphaeropsis) quasicribrata, according to Gocht (1976, p.322). AGE: Early-Late Maastrichtian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |