File:Qikiqtania fossil material.webp
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[edit]DescriptionQikiqtania fossil material.webp |
English: (a–f) Elements associated with the feeding apparatus. Elements in a–d are shown in Fig. 2 and Video S2. Element e is identified as parts of the palate and lower jaw due to the presence of multiple rows of both dorsally and ventrally facing teeth. The ventrally facing teeth are determined to be palatal in nature due to the expanded medial shagreen of denticles (likely part of the entopterygoid) that are bordered laterally by two uniform rows of larger teeth (likely the ectopterygoid and maxilla). This piece could not be definitively positioned relative to the other jaw elements due to absence of the corresponding broken tooth bases on the main lower jaw block. Element f is identified as part of a lower jaw on the basis of its curvature and dentition. (g) Maxilla. (h) Left pectoral fin, which is embedded in matrix, with exposed associated scales. (i) Fragment containing scales and lepidotrichia from a paired fin. (j, k) Fragments with undiagnosed vascularized endoskeletal elements. (l) Scale field from the dorsal midline, anterior is up. (m) Fragment containing scales from the lateral line series and flank. (n) Trunk scale field, anterior is left. |
Date | |
Source | A new elpistostegalian from the Late Devonian of the Canadian Arctic |
Author | T. A. Stewart, J. B. Lemberg, A. Daly, E. B. Daeschler, & N. H. Shubin |
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current | 23:45, 20 July 2022 | 2,122 × 2,267 (657 KB) | SlvrHwk (talk | contribs) | Uploaded a work by T. A. Stewart, J. B. Lemberg, A. Daly, E. B. Daeschler, & N. H. Shubin from [https://doi.org/10.1038/s41586-022-04990-w A new elpistostegalian from the Late Devonian of the Canadian Arctic] with UploadWizard |
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