DescriptionTrilobitaDiversity.png English: Collage of six trilobite genera. First row: Walliserops, Phacops and Cambropallas; bottom row: Isotelus, Kolihapeltis
DescriptionTrilobite diversity EN.png English: Graph showing the number of trilobite families from the start of the Middle Devonian to the total extinction
DescriptionTrilobite diversity EN (cropped).png English: Graph showing the number of trilobite families from the start of the Middle Devonian to the total
DescriptionTrilobite diversity.png English: A collage of Trilobites from all traditionally accepted orders are included (one from each order), made using