Supplementary data for: New paromomyids (Mammalia, Primates) from the Paleocene of southwestern Alberta, Canada, and an analysis of paromomyid interrelationships

<p>Paromomyidae are one of several families of plesiadapiforms that flourished during the Paleocene in North America soon after the extinction of non-avian dinosaurs some 66 million years ago. Although they are often among the best-represented plesiadapiforms in mammalian faunas in both North America and Europe, the early history of paromomyids is poorly understood, and their fossil record at higher latitudes is comparatively depauperate. We report here on the discovery of two new species of paromomyids from Paleocene deposits in southwestern Alberta:<strong> <em>Edworthia greggi</em> new species</strong> is the second known species of the basal paromomyid <em>Edworthia</em> Fox, Scott, and Rankin, whereas <strong><em>I</em><em>gnacius glenbowensis</em> new species</strong> is among the most abundantly represented species of <em>Ignacius</em> Matthew and Granger. These new discoveries document for the first time parts of the upper dentition of <em>Edworthia</em>, and the new species of<em> Ignacius</em> represents the first new, pre-Clarkforkian species of the genus to be described in nearly one hundred years. A comprehensive phylogenetic analysis of nearly all known paromomyid taxa (including the new species described herein) recovered both species of <em>Edworthia</em> near the base of the paromomyid tree in a polytomy with <em>Paromomys depressidens</em>, and a paraphyletic <em>Ignacius</em>. The new paromomyids from Alberta not only increase the known taxonomic diversity of <em>Edworthia</em> and <em>Ignacius</em>, but also add significantly to knowledge of the dental anatomy of these poorly known genera, and further add to a uniquely Canadian complement of Paleocene plesiadapiforms.</p>