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. 2015 Apr 7;3:e857. doi: 10.7717/peerj.857

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© 2015 Tschopp et al.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

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Tooth of Omeisaurus tianfuensis ZDM T5705 (A; traced from He, Li & Cai, 1988), Camarasaurus sp. SMA 0002 (B), and Diplodocinae indet. CM 3452 (C) in lingual view. Note the V-shaped wear facets in Camarasaurus (B; C117-0), in contrast to the single, planar facet in diplodocids (C; C117-1), the longitudinal grooves in Omeisaurus and Camarasaurus (A, B; C123-1), and the marginal tooth denticles in Omeisaurus (A; C125-0). Abb.: ato, anterior tooth; dt, denticles; pto, posterior tooth; tc, tooth crown; tr, tooth root; wf, wear facet. Teeth scaled to the same crown length.