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. 2015 Apr 7;282(1804):20142490. doi: 10.1098/rspb.2014.2490

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© 2015 The Author(s) Published by the Royal Society. All rights reserved.

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Figure 1. — Pebasian crushing-dentition caimans. Gnatusuchus pebasensis gen. et sp. nov. (a–d). Skull (holotype, MUSM 990) in dorsal (a) and ventral (b) view. (c) Right mandible (MUSM 1979) in dorsal view. (d) Comparison among coloured bone photographs of mandible of G. pebasensis (right) and Caiman crocodilus (left) in dorsal views and cross sections at the level of the adductor fossa. Values of 70° and 90° indicate the corresponding lateral vertical angle of the mandibular ramus with the horizontal plane. Kuttanacaiman iquitosensis gen. et sp. nov. (e,f,i). Skull and mandibles (holotype, MUSM 1490) in dorsal (e), ventral (f) and left lateral (i) view. Caiman wannlangstoni sp. nov. (g,h, j). Skull (holotype, MUSM 2377) in dorsal (g), ventral (h) and right lateral (j) view. an, angular; ar, articular; bo, basioccipital; co, coronoid; cr, canthi rostralii; d, dentary; d1–7, d11–14, dentary tooth positions; ec, ectopterygoid; emf, external mandibular fenestra; eo, exoccipital; f, frontal; FAD, mandibular adductor fossa; j, jugal; j.mx, maxilla surface for jugal; l, lacrimal; m1–9, m12, maxillary tooth positions; mx, maxilla; n, nasal; na, narial opening; p, parietal; pa, palatine; pf, prefrontal; pm, premaxilla; pm1–5, premaxillary tooth positions; po, postorbital; pt, pterygoid; q, quadrate; qj, quadratojugal; qj.q, quadrate surface for quadratojugal; QK, knob of quadrate crest A; s, splenial; sa, surangular; so, supraoccipital; sq, squamosal. Scale bars, 5 cm. Slightly smaller scale bar for (c) and (d).