Walliserops trifurcatus

== Translingual == === Proper noun === Walliserops trifurcatus m A taxonomic species within the family Acastidae – a trilobite in the Phacopida order. === References === Walliserops on Wikipedia.Wikipedia Acastidae on Wikispecies.Wikispecies Category:Walliserops trifurcatus on Wikimedia Commons.Wikimedia Commons “Acastidae”, in Paleobiology Database, 2026 W. trifurcatus, Fossil Mall