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Morphological comparisons between a monstersaur individual’s anterior and posterior dorsal vertebrae (LACM 163584 Heloderma horridum). (A) Anterior dorsal vertebra in anterior, left-lateral, posterior and dorsal views. (B) Posterior dorsal vertebra in anterior, left-lateral, posterior, and dorsal views. Anatomical abbreviations: con, posterior condyle; cot., cotanterior cotyle; nc, neural canal; ns, neural spine; poz, postzygapophysis; prz, prezygapophysis; syn, synapophysis.
