Results 81 to 90 of about 814 (192)
Ivaldiceras, un nouveau genre d'ammonites hétéromorphes de l'Aptien inférieur du Sud-Est de la France [PDF]
, 2016 New investigations in the Vocontian Lower Aptian deposits resulted in the discovery of very rare specimens of heteromorphic ammonites whose specific morphological and ornamental features have led to the erection of Ivaldiceras gen. nov.
Penagé, Emmanuel +3 more
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Rivista Italiana di Paleontologia e Stratigrafia, 2017 The ammonite faunas collected in three marly interbeds of the Maiolica limestone exposed near Cesana Brianza (Como province, Lombardy) are described in this paper. The age of the first and second interbeds is Late Barremian.
FABRIZIO CECCA, GIOVANNI LANDRA
doaj +1 more source
Carnets de Géologie, 2008 More than 2,200 pyritized ammonites of the Superfamily Phylloceratatoidea have been collected in consonance with the scale of the ammonite zonation of the expanded Marnes Bleues Fm in the Vocontian Basin (SE France).
Joly Bernard, Delamette Michel
doaj
, 2014 The Late Barremian Hemihoplitidae (Ancyloceratina, Ammonoidea) are widely known in the northern Tethyan Margin and the Essaouira-Agadir Basin (Morocco). Their rapid evolution and diversification make them one of the key groups for that period, but their ...
Bersac, Stéphane, Bert, Didier
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About the stratigraphic position of the Lower Aptian Roloboceras hambrovi (Ammonoidea) level
Carnets de Géologie, 2008 In the stratotype of the Lower Aptian substage the position of the assemblage that includes Roloboceras spp. and Megatyloceras spp. has been clearly established as being in the middle part of the upper Bedoulian. Some authors have erected this horizon as
Conte Gabriel +3 more
doaj
, 2019 FIGURE 2. Biostratigraphic chart of the Upper Cretaceous (Campanian and Maastrichtian) of the Western Interior of North America showing ammonite and inoceramid zones (modified from Cobban et al., 2006).Published as part of Landman, Neil H., Kennedy, W ...
Grier, Joyce C. +5 more
core +1 more source
Early cephalopod evolution clarified through Bayesian phylogenetic inference. [PDF]
BMC Biol, 2022 Pohle A +8 more
europepmc +1 more source
, 2013 National audienceA new, spinous with a venter deeply sulcate, species of Euhoplites [Ammonoidea, Hoplitinae]: E. barroisi sp. nov. is described from the upper Albian of Wissant (Pas-de-Calais, F).Une nouvelle espèce, épineuse et à sillon ventral ...
Amédro, Francis
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LARDAROCERAS GEN. N., A NEW LATE ANISIAN AMMONOID GENUS FROM THE PREZZO LIMESTONE (SOUTHERN ALPS)
Rivista Italiana di Paleontologia e Stratigrafia, 2017 On the basis of ammonoids collected in the uppermost part of the Prezzo Limestone (Anisian), the new genus Lardaroceras and two new species L. krystyni (type species) and L. pseudohungaricum are described; a third one is left in open nomenclature.
MARCO BALINI
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Flexispinites nov. gen. (Taramelliceratinae, Ammonoidea)
, 1984 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources