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oai:docta.ucm.es:20.500.14352/1208482025-06-03T23:51:07Zcom_20.500.14352_14col_20.500.14352_15

First occurrence of Ischyrictis zibethoides (Carnivora, Mustelidae, Guloninae) from the Middle Miocene of Southwestern Europe Sánchez, Diego Morales, Jorge Pérez Ramos, Alejandro Álvarez Sierra, María De Los Ángeles Valenciano Vaquero, Alberto 569.74(4) Carnivora Arctoidea Mustelidae Iberian Peninsula Neogene Paleontología 2416.05 Paleontología de Los Vertebrados This study describes the cranial remains of Ischyrictis zibethoides from the Middle Miocene of La Retama (MN5, Spain) and Ischyrictis bezianensis from the Early Miocene of Baigneaux (MN4, France). The presence of I. zibethoides in La Retama represents the first record of this species in the Iberian Peninsula, previously known exclusively from France and Germany. Additionally, we suggest that I. cf. bezianensis from Quinta de Farinheira (MN5, Portugal) should be reclassified as I. cf. zibethoides Ischyrictis zibethoides from the localities of Sandelzhausen (MN5, Germany) and Sansan (MN6, France) exhibits significant variability in size and dental morphology, particularly in the first molars (M1/m1). The diversity of large-sized mustelids (over 10 kg) is a noteworthy feature of the carnivoran associations during the Middle Miocene in Europe. They almost exclusively occupied the mesocarnivore niche, which in North American faunas was shared by large mustelids and canids. The decline in diversity of large-sized mustelids coincided with the rise in size and diversity of hyaenid species, which was detected in European faunas towards the end of the Middle Miocene. European Community Ministerio de Investigación e Innovación MCIU /AEI /10.13039/501100011033 / FEDER, UE Depto. de Geodinámica, Estratigrafía y Paleontología Fac. de Ciencias Geológicas TRUE pub 2025-06-03T16:34:37Z 2025-06-03T16:34:37Z 2024 journal article AM https://hdl.handle.net/20.500.14352/120848 0375-0442 10.1127/pala/2024/0153 2509-8373 eng 823827 PID2020-116220GB-I00 PID2023-1525 151089NB-I00 Sánchez, D., Morales, J., Pérez-Ramos, A., Álvarez-Sierra, M. Á., & Valenciano, A. (2024). First occurrence of ischyrictis zibethoides (Carnivora, mustelidae, guloninae) from the middle miocene of southwestern europe. Palaeontographica Abteilung A, 329(1-2), 33-61. https://doi.org/10.1127/pala/2024/0153 open access application/pdf Schweizerbart Science