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. 2015 Mar 30;276(6):657–680. doi: 10.1002/jmor.20370

Figure 9.

Figure 9

Scanning electron microscopy BSE (NHM P.73622, A) and etched SEM (NHM P.73623, B–E) sections through the cephalothoracic shield of Loricopteraspis dairydinglensis. Architecture of the cephalothoracic dermal skeleton (A); detail of the superficial tubercles, showing centripetal dentine developed about a central pulp canal with a capping layer of SCE (B); detail of L2, showing an intersecting network of radial walls composed of centripetal lamellae with a homogenous core (C); section through a radial wall of L2, showing the homogenous core is pervaded by a mesh of coarse unmineralised spaces. The outer lamellar part is perforated by an orthogonal fabric of fine, thread‐like spaces, which warp the lamellae (D); section through L3, showing an orthogonal fabric of Sharpey's fibres (E). Scale bar equals 319 μm in (A), 50 μm in (B), 233 μm in (C), 71 μm in (D) and 51 μm in (E).