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IRSNB M2272 left ulna of Nanophoca vitulinoides (A–C) and corresponding drawings (D–F) in medial (A, D), anterior (B, E), and lateral (C, F) view. And IRSNB 1066-M243b right ulna of Nanophoca vitulinoides (G, H) and corresponding drawings (I, J) in lateral (G, I) and anterior (H, J) view. Broken or obliterated areas are indicated in gray.
