File:Comparative osteology of premaxilla, maxilla, and preopercular of actinopterygians.png
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Captions
Captions
During the evolution of actinopterygians, the shapes and functional roles of these three skull elements changed.
Summary edit
| Description |
English: Paleozoic actinopterygians had a solid cheek region with little mobility of the premaxilla, maxilla, and preopercular bones. In contrast, derived teleosts have a highly mobile maxilla and premaxilla as seen in the largemouthed bass, Micropterus salmoides. |
| Date | |
| Source | Own work by William E. Bemis |
| Author | William E. Bemis |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:16, 8 January 2023 | | 7,128 × 4,691 (2.3 MB) | VertebrateLife (talk | contribs) | Uploaded a work by William E. Bemis from Own work by William E. Bemis with UploadWizard |
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