Patagosmilus goini Forasiepi & Carlini, 2010

Suarez, Catalina, Forasiepi, Analia M., Babot, María Judith, Shinmura, Tatsuya, Luque, Javier, Vanegas, Rubén D., Cadena, Edwin A. & Goin, Francisco J., 2023, A sabre-tooth predator from the Neotropics: Cranial morphology of Anachlysictis gracilis Goin, 1997 (Metatheria, Thylacosmilidae), based on new specimens from La Venta (Middle Miocene, Colombia), Geodiversitas 45 (18), pp. 497-572 : 544

Patagosmilus goini Forasiepi & Carlini, 2010

MLP 07-VII-1-1 (holotype), most of the left side of the skull with upper dentition, right magnum, and proximal portion of ungual phalanx (Río Negro Province, Argentina; Collón Curá Formation, Colloncuran SALMA, middle Miocene) ; B:p2-154 ( MNHN-Bol: cast hosted in the MLP and observations from F. Goin), posterior portion of a skull, a fragment of left maxilla with the proximal portion of the canine, fragments of left and right maxillae with dentition, incomplete left and right mandibular rami with dentition (“ Bone wash ” locality, Río Rosario , Tarija Department, Bolivia; un-named formation, Honda Group, Bolivia [not homologous to the Honda Group from Colombia (MacFadden & Wolff 1981)], Laventan SALMA, middle Miocene) .

Additional information: MacFadden & Wolff (1981); Goin & Carlini (1993); Forasiepi & Carlini (2010).

Comment: P.goini is currently known for the holotype and the only published specimen. However, another still-undescribed specimen from Quebrada Honda, Bolivia (middle Miocene) has been mentioned by Goin & Carlini (1993) as belonging to the same, or closely related species than the future holotypes of A. gracilis (named a few years later by Goin 1997) and P. goini (named some years later by Forasiepi & Carlini 2010). The specimen is identified with the field number “B: p2-154 (July 1992)” and was collected during the Duke University/Geobol Paleontology Expedition in 1992 (collectors: Richard Kay, Richard Madden, Carlos Villarroel, Federico Anaya, Marcelo Sánchez, Blythe Williams). The fossil stayed in the La Plata Museum (MLP) for study by Dr Francisco Goin's team. Still, that research could not be finished because the specimen was requested by the Natural History of Bolivia (MNHN-Bol), which was designed as its official repository until now. During the development of this research, we did not have access to the original material of this specimen, trying to establish communication with that museum several times over several years without success. We hope this communication is finally possible soon, so the study of this specimen can be finally completed. However, we had access to a cast hosted in the MLP and the notes of observations made by Dr Goin while he was studying the fossil. We used that material and information for comparisons and to complete some scorings in the matrix for P. goini , as we agree with the hypothesis of this specimen belonging to P. goini .