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Sur quelques ammonites du Valanginien de l'Oued Guelta' (Tunisie)

1965; EDP Sciences; Volume: S7-VII; Issue: 5 Linguagem: Inglês

10.2113/gssgfbull.s7-vii.5.833

1777-5817

Lucia Memmi,

Paleontology and Stratigraphy of Fossils

Abstract An upper Jurassic and lower Cretaceous sequence in the Guelta wadi basin, northeastern Tunisia, includes a richly fossiliferous marl containing abundant ammonites of the middle Valanginian (lower Cretaceous) Kilianella roubaudiana zone. Berriasellidae occur in great variety; Lytoceratidae and Belemnitidae are represented by only a few individuals. Several ammonites are systematically described.