Lower Cambrian Trilobites from the Illtyd Formation, Wernecke Mountains, Yukon Territory

Résumé du livre

This study focuses on a stratigraphic section in the Wernecke Mountains that represents peak transgression at the end of the Early Cambrian and thus peak availability of data. The section has a great thickness of upper Bonnia-Olenellus Zone strata containing numerous trilobite-bearing beds. The trilobites described in this study are from a 946 m thick stratigraphic section in the Lower Cambrian Illtyd Formation. Trilobites belonging to 14 genera (2 new) and 38 species (15 new) are described and a medial Bonnia-Olenellus Zone age near the base of the Illtyd Formation is documented.