Abstract
Specimens ofCyphaspisBurmeister are recorded from Eifelian and Frasnian strata in Belgium as well as from Eifelian strata in Germany, and are assigned to six taxa. Scant information has hitherto been available onCyphaspis from the Ardennes. From this regionCyphaspis unguloides belgica n. ssp.,Cyphaspis sp. B,Cyphaspisl sp. C, andCyphaspis sp. D are recorded. Newly collected topotypical material ofCyphaspis unguloides unguloides (Erben) from the Eifel is described which permits current assignment of this taxon toCyphaspis. The holotype ofCyphaspis hoepfneri hoepfneri (Kowalski) from the Eifel, which was previously only known from poor illustrations, is refigured. The diagnosis ofCyphaspis is emended to include several taxa that exhibit a relatively weakly vaulted glabella and occasionally shorter genal spines.HeliopygeHaas & Mensink (Acastidae), which is in need of revision, is briefly discussed.
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