Systematics, biostratigraphy and biogeography of the ammonoid family Collignoniceratidae across the Turonian-Coniacian (Cretaceous) boundary in the West European and Indo-Malgach provinces
Frederic Diebold
Gutachter: Prof. Dr. Peter Bengtson
This manuscript is produced only for the examination as a doctoral dissertation and is not intended as a permanent scientific record. It is therefore not a publication in the sense of the International Code of Zoological Nomenclature. 12
Contents
Introduction, aim of research 15
Chapter 1. The upper Turonian-lower Coniacian ammonite and inoceramid succession in the Aquitaine Basin, France 21
1. Introduction 22 2. Geographical and geological settings 22 3. History of research 23 The Turanian historical stratotype 23 The Coniacian historical stratotype 23 Biostratigraphy and sequence stratigraphy 26 4. Material and methods 27 4.1 Field work 27 4.2 Fossil material 28 5. Litho- and biostratigraphy 28 5.1 Charente and Charente-Maritime 29 5.1.1 Saint-Agnant sheet 29 5.1.2 Saintes sheet 29 5.1.3 Pons sheet 30 5.1.4 Jonzac sheet 30 5.1.5 Cognac sheet 31 5.1.6 Angouleme 31 5.1.7 Montmoreau 32 5.2 Dordogne and Lot-et-Garonne 32 5.2.1 Perigueux (ouest), Perigueux (est) and Thenon sheets 32 5.2.2 Terrasson sheet 33 Aubas 1-2 38 Jayac 1 39 La Cassagne 1 39 Saint-Amand-de-Coly 1-5 39 Montignac 1-2 42 Paulin 1-3 43 5.2.3 Sarlat sheet 43 Calviac 1 43 Meyrals 1 44 Saint-Crepin-et-Carlucet 1-2 44 Saint-Julien-de-Lampon 1 44 Sainte-Nathalene 1-3 45 Vezac 1 45 5.2.4 Le Bugue sheet 46 Campagne 1 50 Les Eyzies 1 50 Saint-Cirq 1 50 5.2.5 Fumel sheet 50 5.3 Additional locality descriptions 51 6. Systematic palaeontology 51 Forresteiia (Forresteria) alluaudi (Boule, Lemoine & Thevenin, 1907) 52 Forresteria (Harieites) petrocoriensis (Coquand, 1859) 55 Forresteria (Harieites) n/'cWes/ (de Grossouvre, 1894) 60 Peroniceras (Peroniceras) cf. subtricarinatum (d'Orbigny, 1850) 63 Lenticeratinae gen. et sp. indet 64 7. Inoceramids 65 8. Calcareous nannofossils 66 9. Zonation 68 10. Summary and conclusions 70
Chapter 2. The upper Turonian-lower Coniacian ammonite and inoceramid succession in the Dieulefit area (Rhodanian Carbonate Platform, Vocontian Basin), southeastern France, with the description of Neoprionocyclus vocontiensis nov. gen. et sp.... 131
1. Introduction 132 2. Geographical and geological settings 132 3. History of research 132 4. Material and methods 136 5. Litho- and biostratigraphy 136 5.1 Montelimar sheet 136 5.1 Dieulefit sheet 142 6. Systematic palaeontology 143 Neophylloceras bizonatum (Fritsch, 1872) 144 Gaudryceras (Gaudryceras) denseplicotum (Jimbo, 1894) 145 Lewesiceras mantelli Wright & Wright, 1951 146 Prionocyclus cf. germari (Reuss, 1845) 147 Neoprionocyclus vocontiensis nov. gen et sp 149 Eubostrychoceros (Eubostrychoceras) saxonicum (Schluter, 1875) 151 Hyphontoceras (Hyphantoceras) cf. flexuosum (Schluter, 1872) 152 Hyphontoceras (Hyphantoceras) cf. ernsti Wiese, 2000 152 Sciponoceras bohemicum bohemicum (Fritsch, 1872) 153 Baculites undulatus (d'Orbigny, 1850) 154 Scaphites geinitzii (d'Orbigny, 1850) 155 Scaphiteskieslingswaldensis Langenhan & Grundey, 1891 subspecies indet 156 7. Inoceramids 157 8. Calcareous nannofossils 158 9. Zonation 158 10. Conclusions 159
Chapter 3. Integrated ammonite, inoceramid and nannofossil biostratigraphy across the Turonian-Coniacian boundary in the Diego Basin, Madagascar 185 1. Introduction 186 2. Geographical and geological settings 186 3. History of research 186 4. Material and methods 193 4.1 Field work 193 4.2 Fossil material 193 5. Litho- and biostratigraphy 194 6. Systematic palaeontology 200 Gaudr/ceros (Gaudryceras) denseplicatum (Jimbo, 1894) 201 Kossmoticeras (Kossmoticeras) sp. juv 202 Placenticeras kaffrarium Etheridge, 1904 203 Subphonocyclus neptuni (Geinitz, 1850) 205 Subprionocyclus branneri (Anderson, 1902) 205 Prionocyclus germari (Reuss, 1845) 206 Prionocyclus cf. lenti (Gerhardt, 1897) 208 Barroisiceras onilahyense Basse, 1947 209
Eubosirychoceros (Eubosiiychoceras) indopocificum Matsumoto, 1967 ... 213 Baculites yokoyamai Tokunaga & Shimizu, 1926 214 Yezoites so 216 7. Inoceramids 216 8. Calcareous nannofossils 218 9. Biozonation 224 10. Conclusions 226
Discussions and conclusions 257
Acknowledgements 271
References 272