![Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. FIG. 87.—-Chondrocranium of a frog after metamorphosis, from Gaupp. fov, fenestra ovalis; m, Meckel's cartilage; mtg, metapterygoid; nc, nasal capsule; ptgq, pterygoquadrate; Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. FIG. 87.—-Chondrocranium of a frog after metamorphosis, from Gaupp. fov, fenestra ovalis; m, Meckel's cartilage; mtg, metapterygoid; nc, nasal capsule; ptgq, pterygoquadrate;](https://c8.alamy.com/comp/REFE39/comparative-anatomy-of-vertebrates-anatomy-comparative-vertebrates-anatomy-fig-87-chondrocranium-of-a-frog-after-metamorphosis-from-gaupp-fov-fenestra-ovalis-m-meckels-cartilage-mtg-metapterygoid-nc-nasal-capsule-ptgq-pterygoquadrate-tnas-tectum-nasalis-tsyn-tectum-synoticum-timed-taenia-tecti-medialis-basisphenoid-are-unknown-in-the-ethmoid-region-except-in-the-aglossa-there-is-a-peculiar-bone-the-sphenethmoid-which-arises-as-two-bones-on-either-side-these-fuse-forming-a-ring-os-en-ceinture-around-the-olfactory-nerves-and-the-anterior-end-of-the-brain-REFE39.jpg)
Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. FIG. 87.—-Chondrocranium of a frog after metamorphosis, from Gaupp. fov, fenestra ovalis; m, Meckel's cartilage; mtg, metapterygoid; nc, nasal capsule; ptgq, pterygoquadrate;
![Frontiers | Zebrafish endochondral growth zones as they relate to human bone size, shape and disease Frontiers | Zebrafish endochondral growth zones as they relate to human bone size, shape and disease](https://www.frontiersin.org/files/Articles/1060187/fendo-13-1060187-HTML/image_m/fendo-13-1060187-g001.jpg)
Frontiers | Zebrafish endochondral growth zones as they relate to human bone size, shape and disease
![Bonner zoologische Monographien. Zoology. Planche 57. 252 Fig. 249 ä 252: Pseudohemisus calcaratus (Mocquard). Vue superieure et inferieure du cräne, hyoide, ceinture scapulaire. Fig. 253: Pseudohemisus calcaratus (Mocquard). Vue dorsale et Bonner zoologische Monographien. Zoology. Planche 57. 252 Fig. 249 ä 252: Pseudohemisus calcaratus (Mocquard). Vue superieure et inferieure du cräne, hyoide, ceinture scapulaire. Fig. 253: Pseudohemisus calcaratus (Mocquard). Vue dorsale et](https://c8.alamy.com/comp/RHE3HX/bonner-zoologische-monographien-zoology-planche-57-252-fig-249-252-pseudohemisus-calcaratus-mocquard-vue-superieure-et-inferieure-du-crne-hyoide-ceinture-scapulaire-fig-253-pseudohemisus-calcaratus-mocquard-vue-dorsale-et-ventrale-de-la-colonne-vertebrale-fig-254-256-pseudohemisus-calcaratus-mocquard-aspect-general-main-et-pied-fig-257-pseudohemisus-madagascariensis-blgr-pied-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-p-RHE3HX.jpg)