López-Torres and Silcox—European Paromomyidae
Arcius ilerdensis are less clear, but it appears basal to the clade of French species of Arcius. Finally, the monophyly of Arcius is consistent with a single dispersal for the family Paromomyidae from North America to Europe.
Acknowledgments
We thank M. Godinot and C. Argot (Muséum Nationale d’Histoire Naturelle), R. Rocha (Universidade Nova de Lisboa), J.J. Hooker (British Museum of Natural History), T. Smith (Royal Belgian Museum of Natural Sciences), J. Galkin, A. Davison, and R. O’Leary (American Museum of Natural History), P.A. Holroyd and W.A. Clemens (University of California Museum of Paleontology), R.C. Fox and M.W. Caldwell (University of Alberta), P.D. Gingerich,W.J. Sanders, and A. Rountrey (University of Michigan), E.J. Sargis, D. Brinkman, M. Fox, and C.A. Norris (Yale Peabody Museum), D.J. Bohaska and N. Pyenson (National Museum of Natural History – Smithsonian Institution), K.D. Rose (Johns Hopkins University), and J.I. Bloch (Florida Museumof Natural History) for access to specimens and/or casts. Thanks to T.B. Viola for fruitful discussions and to K.C. Beard, D.R. Begun, W.A. Clemens, and M.A. Schillaci for helpful comments. Viktoria Bodo prepared Figure 6; it is included with her permission.We are grateful to R. Minwer-Barakat and J. Marigó for permission to use original figures. We thank A. Aumont, M. Godinot, and R. Rocha for access to unpublished material. Thanks to E. Charles, R. Bhagat, and D. Lin for making relevant casts. We are very grateful to J.T. Gladman and C. Crawford for their assistance in CT-scanning the specimens of Arcius and to D.M. Boyer for access to resources. Thanks to K.R. Selig for further assistance during scanning. We are grateful to M.C. Torres Jové for access to data. We also thank M. Godinot, J.I. Bloch, and H.-D. Sues, whose comments significantly improved this paper. This research was supported by the Doris O. and Samuel P. Welles Research Fund, an American Museum of Natural History Collections Study Grant, and University of Toronto Department of Anthropology Research Travelling Grants to SLT, and an NSERC Discovery Grant to MTS.
Accessibility of supplemental data
Data available from the Dryad Digital Repository: https://doi. org/10.5061/dryad.873c4
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