Macrogrammus

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,^[1] 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.^[2]

Macrogrammus Temporal range: Early Arenig[1]
Conservation status
Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Phacopida
Family:	Pilekiidae
Genus:	Macrogrammus