Aptian ammonites of Abu Dhabi (United Arab Emirates)

Abstract

Abstract:The identification of some twenty ammonite fragments from oil wells drilled in offshore Abu Dhabi revealed the presence of six Aptian genera: Cheloniceras, Epicheloniceras, Gargasiceras, Colombiceras, Pseudohaploceras, and Macroscaphites. These ammonites indicate the Furcata Zone and the succeeding Martini Zone. The Gargasian age of the upper part (HST) of the Shu'aiba as well as that of the whole of the Bab are thus firmly established.

The Early Aptian (Cretaceous) stratigraphy of Mount Pagasarri (N Spain): Oceanic anoxic event‐1a

“…The Shu'aiba Limestones of the Persian Gulf are overlain by sediments containing furcata Zone ammonites (Busnardo & Granier, 2011;Granier & Busnardo, 2013 (Bréhéret, 1994). The Niveau Blanc contains A strong similarity in the stratigraphic record is recognized between the Mount Pagasarri (Spain) and Iran sections (Wilmsen, Fürsich, & Majidifard, 2013 11 Early Aptian stratigraphic correlation between the Aralar and Mount Pagasarri areas.…”

“…The Shu'aiba Limestones of the Persian Gulf are overlain by sediments containing furcata Zone ammonites (Busnardo & Granier, ; Granier & Busnardo, ). They are time equivalent to the Sarastarri/Peñascal Limestones of the Basque‐Cantabrian Basin.…”

Comment on “Early Aptian paleoenvironmental evolution of the Bab Basin at the southern Neo‐Tethys margin: Response to global carbon‐cycle perturbations across Ocean Anoxic Event 1a” by K. Yamamoto et al.

“…One “large mold,” which was not illustrated in the publication [ Yamamoto et al ., ], was identified by A. Misaki as “ Pseudosaynella raresulcata ,” characteristic of the “Weissi” (Forbesi)—Deshayesi zones (Bedoulian). However, this find was not unique: as other authors reported ammonitic finds at the same level, either past [ Banner and Wood , ; Hassan et al ., ; Azer and Toland , ; C. W. Wright, unpublished data, 1959, M. Howarth, unpublished data, 1992, both quoted by Granier []] or more recent records [ Granier , , Figure 12; Granier et al ., , 2011; Busnardo and Granier , , Plate 1, figures 1–11; Granier and Busnardo , ], which point to younger ages (Gargasian, Aptian auct . ).…”