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6 results for “Lutrinae”
Figure 10 in Late Miocene Carnivora from Chad: Lutrinae (Mustelidae)
Figure 10. Lutrinae gen. et sp. indet. cf. Aonyx sp., photographs of the referred specimen. TM 219-05-001: left femur in A, anterior view, B, posterior view, C, lateral view, D, distal view, and E, proximal view. Scale bar = 10 mm.
Figure 9 in Late Miocene Carnivora from Chad: Lutrinae (Mustelidae)
Figure 9. Lutrinae gen. and sp. indet. aff. Torolutra sp., photographs of the dentition. TM 266-01-194: subcomplete left hemimandible with subcomplete p4 and m1 in A, labial view, B, lingual view, C, stereophotographs of dorsal view. Scale bars = 10 mm.
Figure 8 in Late Miocene Carnivora from Chad: Lutrinae (Mustelidae)
Figure 8. Djourabus dabba gen. nov. sp. nov., photographs of the dentition. TM 293-01-006, holotype: fragment of right hemimandible with m1 in A, labial view, B, dorsal view, and C, lingual view; anterior part of the mandible in D, right lateral view and E, dorsal view. Scale bar = 10 mm.
Figure 4 in Late Miocene Carnivora from Chad: Lutrinae (Mustelidae)
Figure 4. Vertebral profile of Lutrinae: diagram of caudal vertebrae body length in relation to their rank in extant Lutrinae and S. beyi sp. nov. See text for comments.
Data from: Feeding capability in the extinct giant Siamogale melilutra and comparative mandibular biomechanics of living Lutrinae
At 50 kg in estimated weight, the extinct Siamogale melilutra is larger than all living otters, and ranks among the largest fossil otters. The biomechanical capability of S. melilutra jaws as related to their large size is unknown but crucial to reconstructing the species' potentially unique ecological niche. Here we compare the mandibular biomechanics of S. melilutra using engineering-based performance measures against ten extant otter biomechanical models. Despite a wide range of feeding preferences from durophagy to piscivory, living otter species exhibit a linear relationship between mandible stiffness and volume, as expected in isometric model scaling. In contrast, S. melilutra models exhibit a six-fold increase in stiffness from expected stiffness-volume relationships calculated from extant species models. Unlike stiffness, mechanical efficiency of biting is conserved among living otters and in S. melilutra. These findings indicate that although similar to living bunodont otters in morphology and biting efficiency, jaw strength in S. melilutra far surpasses molluscivores such as sea otters and Cape clawless otters, even after accounting for size. Therefore, Siamogale represents a feeding ecomorphology with no living analog, and its giant size and high mandibular strength confer shell-crushing capability matched only by other extinct molluscivores such as the marine bear Kolponomos.
Data from: Feeding capability in the extinct giant Siamogale melilutra and comparative mandibular biomechanics of living Lutrinae
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.