Cyathaspidiformes is an extinct order of heterostracan vertebrates known from extensive fossil remains primarily from Silurian to Early Devonian strata of Europe, and North America, and from Early Devonian marine strata of Siberia.
Die Cyathaspidiformes sind eine Ordnung ausgestorbener, fischartiger, gepanzerter Wirbeltiere, die vom Silur bis zum Unterdevon innerhalb einer Zeitspanne von 50 Millionen Jahren vorkam. (de)
Cyathaspidiformes is an extinct order of heterostracan vertebrates known from extensive fossil remains primarily from Silurian to Early Devonian strata of Europe, and North America, and from Early Devonian marine strata of Siberia. (en)