This category contains trilobites placed in the order Phacopida. Articles are sorted in subcaategories, either by suborders (Phacopina, Calymenina, Cheirurina) or by taxonomic rank (genera).
This category has the following 5 subcategories, out of 5 total.
The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes.