Best Olenellidae
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An early Cambrian trilobite from Scandinavia, namesake of the Holmia biozone used to correlate lower Cambrian strata across the Baltic and North Atlantic regions.
An early Cambrian olenellid trilobite from Newfoundland, Canada, namesake of the Callavia biozone and a key marker for lower Cambrian stratigraphy in Laurentia.
Early Cambrian olenellid trilobite endemic to western North America, particularly Nevada and California, notable for its prominent genal spines.
Early Cambrian olenellid trilobite from western North America, distinguished by its elongated axial lobe and reduced pygidium typical of the Olenellidae.
An Early Cambrian olenellid trilobite from North America, among the earliest trilobites recorded in the fossil sequence of the Laurentian continent.
Early Cambrian olenellid trilobite known from North America and Greenland, characterized by a distinct glabellar structure and relatively large compound eyes.
An early Cambrian trilobite from Norway and Sweden, known from lower Cambrian deposits of Scandinavia and associated with the early diversification of the class Trilobita.
Middle Cambrian ptychopariid trilobite from North America, known from deposits in the western United States and Canada.
