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. 2018 Sep 12;4(9):eaat6925. doi: 10.1126/sciadv.aat6925

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Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 4 — (A) Depression fracture on the anterior fascia of the proximal end of A. maximus tibiotarsus (USNM A605209) from Christmas River (USNM A605209). (B) Depression fracture on the lateral aspect of the posterior fascia. (C) Distal aspect of tibiotarsus, showing two cut marks (TajT-3 and TT-4). (D) Close-up and profile of cut mark TT-3 on the medial condyle of the distal articular process (digital thin section shows the wall and kerf floor of the mark). Photo credit: V. R. Pérez, University of Massachusetts Amherst.