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97. GIN10106 Goufre du Narcoleptique VS 98. GIN615 Glaciokarst de Tsanfleuron (Savièse) 99. GIN111 Traces dinosaures la Golette 100. GIN153 Empreintes de dinosaures d'Emosson 101. GIN684 Carrière de Miéville ZG 102. ..........Schieferkohlenkomplex Greit (BLN 1307) ZH 103. GIN458 Deckenschotter Irchel 104. GIN740 Benken 105. GIN600 Käpfnach, Horgen 106. GIN596 Küsnachter Tobel 107. GIN601Tüfels, Chilen 108. GIN121 Lägern- Dielsdorf (= GIN223) �� 0 25 50 km �� Figure 1. Map of paleontological geotopes of national significance �� REFERENCES Berger J.-P., Reynard E., Bissig G., Constandache M., Dumas J., Felber M., Häuselmann P., Jeannin P.Y., Schneider H. : Révision de la liste des géotopes d’importance nationale : rapport du groupe de travail 2006-2007. – Groupe de Travail pour les Géotopes en Suisse, 22 p. Reynard E, Berger JP, Constandache M, Dumas J, Felber M, Häuselmann P, Jeannin PY, Martin S, Regolini G, Scapozza C, Schneider H : The revision of the inventory of geotopes of national significance. SGM Lugano, this volume �� Special thanks to the BAFU and the Swiss Academy of Sciences (SCNAT) for financial support and to all the colleagues who help us to compile and choice paleontological sites. �� 121 Symposium 3: Palaeontology
122 Symposium 3: Palaeontology 3. Fossil assemblages from the early Late Cretaceous of southeast Morocco Cavin Lionel *, Meister Christian*, Piuz André* & Boudad Larbi** * Dpt de Géologie et Paléontologie, Muséum de Genève, CP 6434, 1211 Genève 6, Suisse ** Faculté des Sciences et Techniques, BP, 509, Boutalamine, Errachidia, Maroc The Cretaceous deposits surrounding the northern, eastern and southern borders of the Palaeozoic Tafilalt and Mader basins have yielded numerous fossils for more than fifty years. First surveys by French geologists recorded Cenomano-Turonian ammonite assemblages (Basse & Choubert 1959), fish fragments in Turonian of the High Atlas and Midelt area (Dubar 1949), continental reptiles remains in the ‘Grès Infra-cénomaniens’, or ‘Continental Intercalaire’ of the Kem Kem region (Lavocat 1948, 1949). During the following decades, only few palaeontological data about the ‘mid-Cretaceous’ of that area have been published. During the last thirty years, however, local people have engaged very active excavation works for collecting Cretaceous fossils for commercial purpose. Beautifully preserved specimens have been discovered by this way, but little information about sedimentological, startigraphic and geographical contexts is usually associated with this material. Here we present preliminary results of fieldworks conducted by the authors in 2008. The goal of this study is to better understand the palaeoenvironmental and startigraphic contexts of the ‘mid-Cretaceous’ transgression in North-west Africa. In this study, we focused on microfossils, ammonites and fishes as indicators of age and environment changes. We sampled in eight main localities along a north-south transect within the basin in order to detect lateral variations. The series started with continental and deltaic deposits (fig. 1), regarded as Albian-Cenomanian in age, which are topped by coastal then open marine deposits (fig. 2) corresponding to the Cenomanian-Turonian major transgression. Figure 1. Albian-Cenomanian continental and deltaic deposits at the base of the series, Taouz (photo Cavin, L.). Figure 2. Cenomanian-Turonian marine deposits at the top of the series, Belkassem (photo Piuz, A.).
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