Fig. 5 in SimoniteUthiS, a new vampyromorph coleoid with prey in its arms from the Early Jurassic of Luxembourg

Fig. 5 General phylogenetic tree of the Neocoleoidea (proostracum-bearing coleoids) indicating arm crown modifications within the Octobrachia. If the filamentous arm pair of Recent Vampyroteuthis is a homologue of the lost arm pair of the Octopoda, the vampyromorph stem lineage (thicker) should theoretically exhibit evidence of a rudimental dorsolateral (5th) arm pair ; Published as part of Fuchs, Dirk, Weis, Robert & Thuy, Ben, 2024, SimoniteUthiS, a new vampyromorph coleoid with prey in its arms from the Early Jurassic of Luxembourg, pp. 1-10 in Swiss Journal of Palaeontology (6) 143 (1)... Mehr ...