The fossil record of Upper Cretaceous fishes in Colombia is particularly scarce, with only eleven previously identified species. This study presents the first comprehensive report of the extinct aulopiform fish family Enchodontidae from the Eastern Cordillera of Colombia. Fieldwork in the municipality of Matanza (Santander Department) yielded five fossil specimens, including jaw and skull fragments. These specimens were collected from the Upper Cretaceous La Luna Formation and were described and examined to approximate their taxonomic affinity, depositional environment, and geological age. Detailed morphological analyses associate these new specimens with the genus Enchodus. Our findings provide new data that contribute to the understanding of Enchodus diversity and distribution. The presence of key diagnostic characters in our specimens aligns with established phylogenetic frameworks, while further highlighting the potential for the presence of new species within this record.

Fil: Alarcón Gómez, Carlos Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Centro de Investigaciones de la Geosfera y Biosfera. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones de la Geosfera y Biosfera; Argentina

Fil: Torres Parada, José Manuel. Florida International University; Estados Unidos

Fil: Diaz Villamizar, Jefferson Steeven. Servicio Geologico Colombiano.; Colombia

Fil: Patarroyo Camargo, Germán David. Universidad Industrial Santander; Colombia

Fil: Orihuela León, Johanset. Florida International University; Estados Unidos

Fil: Gómez Coronado, Juan Sebastián. No especifíca;

Fil: Márquez Prada, José Javier. No especifíca;