New insights into the phylogeny and skull evolution of stegosaurian dinosaurs: An extraordinary cranium from the European Late Jurassic (Dinosauria: Stegosauria)

Mid cervical vertebra (MAP-9030) of Dacentrurus armatus Owen, 1875 from the Están de Colón (RD-34) fossil site (Riodeva, Teruel, Spain). Photographs (A–E) of MAP-9030 in anterior (A), left lateral (B), posterior (C), dorsal (D), and ventral (E) views. Abbreviations: cr, cervical rib; crc, cervical rib canal; dia, diapophysis; nc, neural canal; ns, neural spine; para, parapophysis; poz, postzygapophysis; prz, prezygapophysis; spozl, spinopostzygapophyseal lamina.