Image: Common-Avian-Infection-Plagued-the-Tyrant-Dinosaurs-pone.0007288.g002

Description: (arrows indicate trichomonosis-type lesions; the position of each specimen is shown in red on the accompanying schematic interpretation of the reconstructed skull of Tyrannosaurus rex, FMNH PR2081); (A), Tyrannosaurus rex (holotype; CMNH 9380) right caudal mandibular ramus in lateral view, displaying a large circumscribed erosive lesion on the caudal part of the dentary. (B) Daspletosaurus torosus (RTMP 2001.36.01) left caudal mandibular ramus in lateral view, displaying a single erosive lesion. (C), Daspletosaurus torosus (RTMP 2001.36.01) multiple erosive lesions are visible on the right surangular in medial view. (D), Albertosaurus sarcophagus (RTMP 1981.10.01), left caudal mandibular ramus in lateral view, showing a slit-shaped trichomonosis-type lesion in the middle of the angular, (enlarged area, inset). (E) Tyrannosaurus rex (MOR 1125), caudal part of left dentary in lateral view, showing a cylindrical-shaped lesion, with smooth edges and almost no surrounding bony alteration. (F), Daspletosaurus torosus (RTMP 94.143.1), surangular in ventral view, with one slit-shaped lesion and one intermediate lesion. The close-up shows the smooth edges and limited surrounding bony alteration characteristic of a trichomonosis-type lesion. (G), Tyrannosaurus rex (MOR 980), left surangular in lateral view, exhibiting multiple oval- to sub-oval-shaped lesions.
Title: Common-Avian-Infection-Plagued-the-Tyrant-Dinosaurs-pone.0007288.g002
Credit: Image file from Wolff E, Salisbury S, Horner J, Varricchio D (2009). "Common Avian Infection Plagued the Tyrant Dinosaurs". PLOS ONE. DOI:10.1371/journal.pone.0007288. PMID 19789646. PMC: 2748709.
Author: Wolff E, Salisbury S, Horner J, Varricchio D
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