Purgatoriidae is a basal plesiadapiform family that includes, Purgatorius and Ursolestes. Purgatoriids are thought to represent the earliest members of the Plesiadapiformes...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...

A hare. Prolagus ressasensis Sp. nov Sen et al. Pleistocene  Tunisia Ursolestes blissorum Sp. nov Hovatter, Chester & Wilson Mantilla Paleocene (Torrejonian)...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...

†Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae...