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Figure 4

From: Dinosaur senescence: a hadrosauroid with age-related diseases brings a new perspective of “old” dinosaurs

Figure 4

Calcium pyrophosphate deposition. (a) Pathological middle caudal vertebra with marked sectioned place. (b) The thin section under polarized light with gypsum wedge. (c, d) Close up of the pleiomorphic crystals under polarized light with gypsum wedge. (e) en face view of glenoid surface of scapula from # 2643 from Hamann-Todd human skeletal collection (Cleveland Museum of Natural History, Cleveland, Ohio, USA). Arrows are pointing at the calcium pyrophosphate crystals.

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