SimoniteUthiS, a new vampyromorph coleoid with prey in its arms from the Early Jurassic of Luxembourg Author Fuchs, Dirk Bayerische Staatssammlung FÜr Paläontologie Und Geologie, Richard-Wagner-Strasse 10, 80333 Munich, Germany Author Weis, Robert Musée National d’histoire Naturelle, Luxembourg, 25 Rue MÜnster, Author Thuy, Ben Musée National d’histoire Naturelle, Luxembourg, 25 Rue MÜnster, text Swiss Journal of Palaeontology 2024 6 2024-02-14 143 1 1 10 http://dx.doi.org/10.1186/s13358-024-00303-y journal article 10.1186/s13358-024-00303-y 1664-2384 12006446 Genus Simoniteuthis n. gen. Type species: Simoniteuthis michaelyi n. sp. Other species: Only the type species. Occurrence: Known only from the type locality. Derivation of name: Dedicated to Jo Simon, scientific volunteer collaborator of the National Museum of Natural History Luxembourg , who skilfully and patiently cleaned the fossil in the nodule and unveiled the soft part preservation. Diagnosis: Medium-sized loligosepiids, gladius moderately wide (gladius widthmax- to-gladius length 0.30– 0.40); median field very slender to slender (median field widthhypz- to-hyperbolar zone length 0.15–0.25; = opening angle 9–14°), laterally reinforced, anterior median field margin convex; hyperbolar zone very long (hyperbolar zone length-to-median field length 0.80–0.89), deeply V-shaped incised; anterior limit of lateral field thus distinctly projected, spine-like pointed, lateral fields moderately wide (lateral field widthmax- to-median field widthmax 1.85–1.95).