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. 2016 Jan 26;4:e1608. doi: 10.7717/peerj.1608

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© 2016 Kammerer

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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Reconstructions based primarily on BP/1/742 and UCMP 35437. Abbreviations: bo, basioccipital; bt, basal tuber; C, upper canine; ch, choana; ec, ectopterygoid; fr, frontal; I, upper incisor; ir, interorbital ridge; j, jugal; la, lacrimal; mr, maxillary ridge; mx, maxilla; na, nasal; nc, nuchal crest; oc, occipital condyle; op, opisthotic; pa, parietal; pb, pineal boss; pd, pre-parietal depression; pl, palatine; pmx, premaxilla; po, postorbital; pof, postfrontal; ppl, palatal boss of palatine; ppt, palatal boss of pterygoid; prf, prefrontal; ps, parasphenoid; q, quadrate; qpt, quadrate ramus of pterygoid; sb, supraorbital boss; smx, septomaxilla; sq, squamosal; st, stapes; tpt, transverse process of pterygoid; v, vomer; vf, ventral premaxillary foramen.