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File:Enamel microstructure of Heterodontosaurus.jpg

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Enamel microstructure of heterodontosaurid dinosaur Heterodontosaurus tucki Crompton and Charig, 1962 (BP/1/9007), from Lower Jurassic upper Elliot Massospondylus Assemblage Zone of South Africa. A. Scanning electron micrographs: A1, simplified, thin, labial edge enamel with incremental lines in transverse view; A2, thick, mesio-distal edge enamel exhibiting poorly organized crystallites and extremely infrequent enamel tubules in transverse view; A3, mesio-distal edge enamel exhibiting three enamel layers in longitudinal view. Long, sinuous, and continuous enamel tubules are frequently observed in this sectioning plane. B. Schematic enamel block depicting how enamel crystallite complexity might differ in different planes of sectioning.

Abbreviations: BUL, basal unit layer; CUL, columnar unit layer; EDJ, enamel dentine junction; OES, outer enamel surface; PC, parallel crystallite.
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Source https://www.app.pan.pl/article/item/app010602023.html
Author Cecilia E. Calvert, Tyler C. Hunt, Niall S. Whalen, Jonah N. Choiniere, Mark A. Norell, and Gregory M. Erickson
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This image was published in Acta Palaeontologica Polonica journal. Their website states that the content of all APP articles is published under the Creative Commons Attribution 4.0 license, unless indicated otherwise.

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current19:02, 30 December 2023Thumbnail for version as of 19:02, 30 December 2023985 × 802 (563 KB)FunkMonk{{Information |Description=Enamel microstructure of heterodontosaurid dinosaur Heterodontosaurus tucki Crompton and Charig, 1962 (BP/1/9007), from Lower Jurassic upper Elliot Massospondylus Assemblage Zone of South Africa. A. Scanning electron micrographs: A1, simplified, thin, labial edge enamel with incremental lines in transverse view; A2, thick, mesio-distal edge enamel exhibiting poorly organized crystallites and extremely infrequent enamel tubules in transverse view; A3, mesio-distal ed...

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