. . . . . . . . . "1007201154"^^ . . "15182131"^^ . . . "fossil"@en . . . . . . . . . . "fossil" . . . . "Macrogrammus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Arenig stage of the Ordovician Period, a faunal stage which lasted from approximately 478 to 471 million years ago. Its fossil name is Macrogrammus scylfense Whittard named after its British Collector WF Whittard in 1966."@en . . "1728"^^ . . . . . . . . . "Macrogrammus"@en . "Macrogrammus"@en . "Early Arenig"@en . . . . "Animalia"@en . "Arthropoda"@en . . . . . "Macrogrammus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Arenig stage of the Ordovician Period, a faunal stage which lasted from approximately 478 to 471 million years ago. Its fossil name is Macrogrammus scylfense Whittard named after its British Collector WF Whittard in 1966."@en . . . . . . . . . "Macrogrammus"@en . . . . . . "Macrogrammus"@en . .