Abstract
The study in course of the materials rescued from the fire that in 1978, destroyed much of the palaeontological collections of the current National Museum of Natural History and Science (Museu Nacional de História Natural e da Ciência) of Lisbon, has allowed the rediscovery of several Cretaceous cephalopods (and the corresponding original labels) that the renowned palaeontologist Alcide d'Orbigny, according to the wishes of the emperor Napoleon III, offered to the king Pedro V in 1855, in order to re-establish the good relationships between France and Portugal. These historical specimens correspond to nautiloids: Angulithes triangularisde Montfort, 1808; ammonoids: Phylloceras (Hypophylloceras) tethys (d'Orbigny, 1840), Ptychophylloceras (Semisulcatoceras) semisulcatum (d'Orbigny, 1840), Neolissoceras grasianum (d'Orbigny, 1840), Pleurohoplites (Pleurohoplites) renauxianus (d'Orbigny, 1840), Acanthoceras rhotomagense (Brongniart, 1822), Coilopoceras requienianus (d'Orbigny, 1840) and Turrilites (Turrilites) costatusLamarck, 1801; and belemnoids: Duvalia dilatata (de Blainville, 1827), Hibolithes subfusiformis (Raspail, 1829) and Belemnitella mucronata (von Schlotheim, 1813). All of them come from outcrops relevant for the French stratigraphy, and they seem to have been selected by d'Orbigny with a representative criterion.
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