Fig. 6. Left tympanic bulla of the holotype of the platanistoid dolphin Aondelphis talen gen. et sp. nov. (MPEF-PV 517) from the early Miocene Gaiman Formation, Bryn Gwyn, Patagonia, Argentina; in dorsal (A), medial (B), ventral (C), lateral (D), anterior (E), and posterior (F) views. Isolated fragments sigmoid process (G) and a portion of outer lip (H); in posterior (G1, H1) and anterior (G2, H2) views. Dashed lines indicate specific structures. Hatched outlines show broken areas of the specimen. Photographs (A1–F1), photographs with explanations (A2–F2, G, H).

Published as part of Viglino, Mariana, Buono, Mónica R., Gutstein, Carolina S., Cozzuol, Mario A. & Cuitiño, José I., 2018, A new dolphin from the early Miocene of Patagonia, Argentina: Insights into the evolution of Platanistoidea in the Southern Hemisphere, pp. 261-277 in Acta Palaeontologica Polonica 63 (2) on page 270, DOI: 10.4202/app.00441.2017, http://zenodo.org/record/13262235