Protodidelphis, Tejedor & Goin & Gelfo & López & Bond & Carlini & Scillato-Yané & Woodburne & Chornogubsky & Aragón & Reguero & Czaplewski & Vincon & Martin & Ciancio, 2009

Tejedor, Marcelo F., Goin, Francisco J., Gelfo, Javier N., López, Guillermo, Bond, Mariano, Carlini, Alfredo A., Scillato-Yané, Gustavo J., Woodburne, Michael O., Chornogubsky, Laura, Aragón, Eugenio, Reguero, Marcelo A., Czaplewski, Nicholas J., Vincon, Sergio, Martin, Gabriel M. & Ciancio, Martín R., 2009, New Early Eocene Mammalian Fauna from Western Patagonia, Argentina, American Museum Novitates 3638, pp. 1-43 : 9

Protodidelphis cf. Protodidelphis , sp. nov.

About a dozen isolated upper and lower teeth are here tentatively referred to the above-described new species of Protodidelphis , but this material comes from Laguna Fría whereas the Protodidelphis sp nov. is characteristic of La Barda. Because only some of this material is well preserved, a precise attribution is difficult. Some minor differences are observed: the LF material is slightly larger in size, with more inflated molars, more developed metaconule, StB and StD closer to each other, and the preparacrista ends labially in a position closer to the anterolingual side of the StB in M2–3.