''Strenuaeva'' is a genus of Cambrian trilobite thought to show
sexual dimorphism
Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, di ...
.
References
Ptychopariida genera
Cambrian trilobites
Fossils of Sweden
{{Ptychopariida-stub