Discoceras antiquissimum, Taxa Only, Exact Match: 2 Treatments

Discoceras antiquissimum			Kröger, Björn, 2013, The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden, European Journal of Taxonomy 41, pp. 1-110 : 72-73	72-73
Discoceras antiquissimum			Kröger, Björn, 2025, The Lyckholm acme of cephalopods - Review of the late Katian (Vormsi-Pirgu regional stages) Ordovician cephalopods of Estonia, European Journal of Taxonomy 978, pp. 1-169 : 129-132	129-132