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, 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.
| Macrogrammus Temporal range: Early Arenig | |
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| Genus: | Macrogrammus |
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