It correlates well with the occurrence of widespread graptolite, conodont, and trilobite species. An assemblage of conodont elements were found associated with this fossil. Initially they were known only from tooth-like microfossils called "conodont elements". Candidates for the biostratigraphic marker are the first appearance of a trilobite or conodont species. It is defined as the first appearance of the conodont species "Iapetognathus fluctivagus". The Waukesha Biota was only the second locality to produce a conodont animal. Several conodont zone and subzones can be distinguished. It had a major effect on the conodont fauna, but barely scathed the graptolites. Conodont teeth are the earliest found in the fossil record. The animals are also called Conodontophora (conodont bearers) to avoid ambiguity. This zone lies just above the North Atlantic "Microzarkodina parva" conodont zone. The Early Permian age of the formation is based primarily on conodont biostratigraphy. They are now termed "conodont elements" to avoid confusion. The conodont elements can be extracted from rock using adequate solvents. The conodont species "Neogondolella praehungarica" appears at the same level.