Výsledky vyhledávání - "Stéphane Bersac"

Early Crioceratites (heteromorphic ammonites) from the lower Hauterivian of south-eastern France: systematics, intraspecific variation and biostratigraphic implications

Autor: Benjamin Vernet, Stéphane Reboulet, Stéphane Bersac, Didier Bert, Léon Canut

Publikováno v: Cretaceous Research
Cretaceous Research, 2021, 126, pp.104903. ⟨10.1016/j.cretres.2021.104903⟩
Cretaceous Research, Elsevier, 2021, 126, pp.104903. ⟨10.1016/j.cretres.2021.104903⟩

International audience; Two acmes of the genus Crioceratites were recorded in the current Crioceratites loryi Zone (lower Hauterivian) in the Lower Cretaceous series of south-eastern France (Vocontian Basin), both in the classic section of the Cheiro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d52bb177f3ce05120740597911a9b4eb
https://insu.hal.science/insu-03236518

Zobrazit plný text záznamu

The heteromorph ammonite genus Ancyloceras (Ancyloceratidae) in the Paris Basin (lower Aptian, Lower Cretaceous, NE France)

Autor: Didier Bert, Stéphane Bersac

Publikováno v: Annales de Paléontologie
Annales de Paléontologie, Elsevier Masson, 2020, 106 (2), pp.102365. ⟨10.1016/j.annpal.2019.102365⟩
Annales de Paléontologie, 2020, 106 (2), pp.102365. ⟨10.1016/j.annpal.2019.102365⟩

International audience; In the present work, we examine a sample of 54 specimens of the heteromorph ammonite genus Ancyloceras d’Orbigny, 1842 from the Argiles à Plicatules Formation (lower Aptian, Lower Cretaceous) of the eastern Paris Basin (NE

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cb23eab51c9baea9298a1fdd8614d0d
https://hal-insu.archives-ouvertes.fr/insu-02360719

Zobrazit plný text záznamu

The lower Aptian ammonites of the Les Ferres Aptian Basin (Lower Cretaceous, Southeast of France) Part I: Introduction and biostratigraphy

Autor: Stéphane Bersac, Didier Bert

Publikováno v: Carnets de Geologie
Carnets de Geologie, Carnets de Geologie, 2019, 19 (9), pp.149-183. ⟨10.4267/2042/70292⟩
Carnets de Géologie / Notebooks on Geology
Carnets de Géologie / Notebooks on Geology, 2019, 19 (9), pp.149-183. ⟨10.4267/2042/70292⟩

International audience; On the southern margin of the Vocontian Basin (SE France), for taphonomic reasons (fragmentation, reworking, pyritization), lower Aptian (Lower Cretaceous) deposits of the interval between the Deshayesites deshayesi and Dufren

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ed483cb00492e2d828027fde2abe3f7
https://hal-insu.archives-ouvertes.fr/insu-02270665/document

Zobrazit plný text záznamu

The ammonites of the Les Ferres Aptian Basin (Lower Cretaceous, Southeast of France): the genus Toxoceratoides (Ancyloceratina, Helicancylidae)

Autor: Didier Bert, Stéphane Bersac

Publikováno v: Cretaceous Research
Cretaceous Research, Elsevier, 2021, 118, pp.104661. ⟨10.1016/j.cretres.2020.104661⟩
Cretaceous Research, 2021, 118, pp.104661. ⟨10.1016/j.cretres.2020.104661⟩

International audience; Toxoceratoides (Ancyloceratina, Helicancylidae) is a lower Aptian (Lower Cretaceous) small heteromorph ammonoid mainly known by small samples of fragmentary specimens. In the present work, we study a sample of 145 specimens of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6888a521c5f090ad45c00d7084945201
https://doi.org/10.1016/j.cretres.2020.104661

Zobrazit plný text záznamu

Implications of the ‘hemihoplitid-like’ ammonites iterative morphology in the context of the late Tethyan Barremian (Early Cretaceous)

Autor: Stéphane Bersac, Didier Bert, Léon Canut

Publikováno v: Cretaceous Research
Cretaceous Research, Elsevier, 2020, 106, pp.104239. ⟨10.1016/j.cretres.2019.104239⟩
Cretaceous Research, 2020, 106, pp.104239. ⟨10.1016/j.cretres.2019.104239⟩

International audience; Hemihoplitidae evolution is well documented in the north-west Tethyan margin at the lower upper Barremian. In this context, the genus Lenicostites gen. nov. (L. rusticus), with ‘hemihoplitid-like’ morphology, is unexpected

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d5dc1753f1311057ad31b4c6772d1e0
https://doi.org/10.1016/j.cretres.2019.104239

Zobrazit plný text záznamu

Size reduction and ornamental oscillation within a Barremian lineage of giant heteromorphic ammonites (Early Cretaceous, northwestern Tethyan margin)

Autor: Zoe J. Hughes, Stéphane Bersac, Josep Juárez-Ruiz, Didier Bert

Publikováno v: Cretaceous Research
Cretaceous Research, Elsevier, 2018, 88, pp.173-189. ⟨10.1016/j.cretres.2017.02.001⟩
Cretaceous Research, 2018, 88, pp.173-189. ⟨10.1016/j.cretres.2017.02.001⟩

International audience; Field sampling data in the Vocontian Basin (southeastern France) and Mallorca (Spain), at the transition between the lower and upper Barremian (upper Moutoniceras moutonianum Zone and lower Toxancyloceras vandenheckei Zone), p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dba4eb098bcf1d536a7728bde18c3e3
https://hal-insu.archives-ouvertes.fr/insu-01461722/document

Zobrazit plný text záznamu

Révision de Cheloniceras cornuelianum (d’Orbigny, 1841), ammonite de l’Aptien inférieur (Crétacé Inférieur)

Autor: Didier Bert, Stéphane Bersac

Publikováno v: Annales de Paléontologie
Annales de Paléontologie, Elsevier Masson, 2018, 104 (1), pp.45-70. ⟨10.1016/j.annpal.2018.01.001⟩
Annales de Paléontologie, 2018, 104 (1), pp.45-70. ⟨10.1016/j.annpal.2018.01.001⟩

International audience; The aim of the present work is to determine the morphological characteristics of the lower Aptian (lower Cretaceous) ammonite species Cheloniceras cornuelianum (d’Orbigny, 1841) (Douvilleiceratinae, Douvilleiceratidae) on th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::103b33e691b415db669faf819bb9e120
https://hal-insu.archives-ouvertes.fr/insu-01713137

Zobrazit plný text záznamu

Palaeontology, taxonomic revision and variability of some species of the genus Gassendiceras Bert et al., 2006 (Ammonitina, Upper Barremian) from southeastern Franc

Autor: Gérard Delanoy, Stéphane Bersac, Didier Bert, Léon Canut

Publikováno v: Acta Geologica Polonica. 63:355-429

Bed-by-bed sampling of twelve Barremian sections in southeastern France from pelagic basin (Vocontian Basin) to neritic platforms (Arc of Castellane, Arc of Nice and Provencal Domain) has enabled the collection of isochronous samples of the ammonite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b4f80a11c876d613aec2ea6998b846f
https://doi.org/10.2478/agp-2013-0016

Zobrazit plný text záznamu

Deux espèces d’ammonites sous un même nom : révision de Deshayesites deshayesi (d’Orbigny, 1841) sur la base de matériel topotypique (Aptien inférieur, Crétacé inférieur, Nord-Est de la France)

Autor: Didier Bert, Stéphane Bersac

Publikováno v: Annales de Paléontologie
Annales de Paléontologie, Elsevier Masson, 2015, 101 (4), pp.265-294. ⟨10.1016/j.annpal.2015.10.003⟩
Annales de Paléontologie, 2015, 101 (4), pp.265-294. ⟨10.1016/j.annpal.2015.10.003⟩

International audience; After a review of the current state of knowledge about the classical Lower Aptian (Lower Cretaceous) ammonite index-species Deshayesites deshayesi (d’Orbigny, 1841) and the problems concerning the acceptation of this species

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fde71c75347ad87d8c935cc187aabe6e
https://hal-insu.archives-ouvertes.fr/insu-01232152

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání