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) Author Suarez, Catalina Current affilition: Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET Mendoza, Av. Ruiz Leal s / n, Parque General San Martín, Mendoza, 5500 (Argentina) and Grupo de Paleontología Neotropical Tradicional y Molecular (PaleoNeo), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá (Colombia) and Smithsonian Tropical Research Institute, Box 0843 - 03092, Balboa-Ancón (Panama) catasuarezg @ gmail. com (corresponding author) catasuarezg@gmail.com Author Forasiepi, Analia M. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET Mendoza, Av. Ruiz Leal s / n, Parque General San Martín, Mendoza, 5500 (Argentina) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (Argentina) Author Babot, María Judith Unidad Ejecutora Lillo-CONICET, Fundación Miguel Lillo, Miguel Lillo 251, San Miguel de Tucumán, Tucumán, 4000 (Argentina) Author Shinmura, Tatsuya Ashoro Museum of Paleontology, 29 - 1 Konan, Ashoro, Ashoro District, Hokkaido 089 - 3727 (Japan) Author Luque, Javier Museum of Zoology, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB 2 3 EJ (United Kingdom) and Smithsonian Tropical Research Institute, Box 0843 - 03092, Balboa-Ancón (Panama) Author Vanegas, Rubén D. Museo de Historia Natural La Tatacoa, Centro Poblado La Victoria, Villavieja, Huila Department (Colombia) Author Cadena, Edwin A. Grupo de Paleontología Neotropical Tradicional y Molecular (PaleoNeo), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá (Colombia) and Smithsonian Tropical Research Institute, Box 0843 - 03092, Balboa-Ancón (Panama) and Field Museum of Natural History, Chicago, IL 60605 (United States) Author Goin, Francisco J. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (Argentina) and División Paleontología de Vertebrados, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s / n, La Plata, Buenos Aires, B 1900 FWA (Argentina) text Geodiversitas 2023 2023-10-12 45 18 497 572 https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2023v45a18.pdf journal article 10.5252/geodiversitas2023v45a18 1638-9395 8434228 urn:lsid:zoobank.org:pub:BB77B691-635A-4B92-9820-DBE74776B7E2 Eomakhaira molossus Character 33: coded 2 (posterior end of palate straight posteriorly), following descriptions of Engelman et al. (2020) and figures, the posterior border is clearly straight. Character 171: coded 1 (large canines). The upper canines are large, robust and not sabre-like. Character 176: changed from 0 to “?”. The preservation does not allow to affirm that the exposed surfaces (labial) of the canines are smooth or with small grooves and ridges. The lingual surfaces are not exposed because the jaw is occluded. They are only visible in the CT scans shown byEngelman et al. (2020). However, the images do not allow to identity clearly if the lingual surface is smooth or not, although it is possible to identify the prominent sulci. Observing the photographs of the labial face of the canine and the CT images (Engelman et al. 2020: fig. 10), there are distinct rugosities visible close to the alveolar border in both, lingual and labial faces, and on the lingual face at the level of the tooth row. However, due to the preservation condition, we cannot define whether these rugosities correspond to the “longitudinal small grooves and ridges” present in sparassodonts or are caused by external factors. APPENDIX 1. — Continuation. Character 177: changed to 2 (prominent median sulci present only on lingual faces of the canines) following descriptions and figures in Engelman et al. (2020), as this structure is absent in labial faces, except for a shallow sulcus observable only in the CT scans, but it is not prominent.