Stereomicrograph of the ventral view of the holotype cranium of Gaudeamus aslius (CGM 66006), showing the anatomical features mentioned in the text. Abbreviations: b, bulla; bo, basioccipital; bs, basisphenoid; ch, choanae; mf, mandibular fossa; oc, occipital condyles; pcp, paracondylar; pl, Palate; s, sphenoid; vzr, ventral zygomatic ramus.