Checklist for Class Trilobita Walch, 1771 (Trilobites)
and region Stephenson County (Northwestern Illinois, Illinois, USA)
List of families for Stephenson County
5 Families width 1 Species
Genera for Stephenson County
5 Genera with 1 Species
Species list for Stephenson County
1 Species
Subnodes of Trilobita with occurrences in Stephenson County
Links, sources and further information Trilobita at ps-19.org
Trilobita at trilobites.info
Trilobita at westerntrilobites.com
Trilobita at gbif.org
Trilobita at irmng.org
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