Color rendered three-dimensional model of Gloydius lipipengi sp. nov. (holotype, IVPP OV 2720) A dorsal view B palatal view, mandibles not shown C lateral view. Abbreviations: bo, basioccipital; bs, basisphenoid; col, columella; cp, compound bone; d, dentary; ecp, ectopterygoid; exo, exoccipital; f, frontal; na, nasal; ma, maxilla; p, parietal; pcr, prearticular crest of compound bone; pfr, prefrontal; pmx, premaxilla; po, postorbital; pp, palatine process of maxilla; pro, prootic; psp, parasphenoid rostrum; pt, pterygoid; sac, surangular crest of compound bone; spm; septomaxilla; so, supraoccipital; sp, splenial; st, supratemporal; v, vomer. Conducted by Ye-Mao Hou and Jingsong Shi.