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Toarcian ammonites from Chantonnay (Vendée, France): palaeontological analysis, biostratigraphy and reflection on the Hildoceratinae

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Titel: Toarcian ammonites from Chantonnay (Vendée, France): palaeontological analysis, biostratigraphy and reflection on the Hildoceratinae
Autoren: Neige, Pascal, Rouget, Isabelle
Weitere Verfasser: Rouget, Isabelle
Verlagsinformationen: 2002.
Publikationsjahr: 2002
Schlagwörter: Morphology, Cephalopoda, Evolution, Ammonoidea, Biostratigraphy, Toarcian, [SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/Paleontology
Beschreibung: Toarcian ammonites from the Chantonnay section (Vendée, France) are analyzed (taxonomy and biostratigraphy). This section supplements a nearby one published by Gabilly (1976a, b). Shape variability and evolutionary patterns of species of the genus Hildoceras Hyatt, 1867 are discussed and compared with the faunas described here. Previously published phylogenetic reconstitutions for the Hildoceratinae are analyzed and criticized. It appears that authors use both morphological and stratigraphic arguments when attempting phylogenetic reconstitutions. We suggest that it would be preferable to base phylogenetic reconstitutions on morphological arguments alone.
Publikationsart: Other literature type
Article
Sprache: French
Zugangs-URL: https://hal.science/hal-04585323v1
Dokumentencode: edsair.dedup.wf.002..6b10d19e4199ee8212047d2d2f203ef9
Datenbank: OpenAIRE
Beschreibung
Abstract:Toarcian ammonites from the Chantonnay section (Vendée, France) are analyzed (taxonomy and biostratigraphy). This section supplements a nearby one published by Gabilly (1976a, b). Shape variability and evolutionary patterns of species of the genus Hildoceras Hyatt, 1867 are discussed and compared with the faunas described here. Previously published phylogenetic reconstitutions for the Hildoceratinae are analyzed and criticized. It appears that authors use both morphological and stratigraphic arguments when attempting phylogenetic reconstitutions. We suggest that it would be preferable to base phylogenetic reconstitutions on morphological arguments alone.