Profallotaspis

Profallotaspis Temporal range: Early Atdabanian
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Redlichiida ?
Genus:	Profallotaspis

Profallotaspis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early Atdabanian stage, 526 million years ago. Profallotaspis jakutensis is arguably the earliest trilobite ever found. Representatives of Profallotaspis have been recorded in the provisional Cambrian Stage 3 deposits of Siberia and, probably, also North America.

...
Wikipedia