Figure 2 | Scientific Reports

Figure 2

From: Evolution and Function of Dinosaur Teeth at Ultramicrostructural Level Revealed Using Synchrotron Transmission X-ray Microscopy

Figure 2

Ultrahigh-resolution internal microstructures of a Tarbosaurus tooth obtained via TXM.

(A) 2D X-ray photograph of a sectioned Tarbosaurus tooth. Mantle dentin and dentin are colored translucent green and yellow, respectively. Enamel is uncolored. (Scale bar: 10 μm.) White-dashed rectangles indicate the 3D reconstruction regions shown in (B–E): (B) enamel crack (EC); (C) interglobular porous space (IGS) structures; (D) distal ends of the dentinal tubules (DEDTs); and (E) proximal ends of the dentinal tubules (PEDTs), which are approximately 190 μm away from the DEJ. (Scale bars: 1 μm.) (The small black dots in (A) are gold particles, which are used for system and image positioning).

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