Scripta Geologica http://www.scriptageologica.nl Scripta Geologica en Naturalis dpcmedewerkers-uba@uva.nl dpcmedewerkers-uba@uva.nl Tue, 20 Dec 2011 10:12:54 GMT Tue, 20 Dec 2011 10:12:54 GMT http://www.scriptageologica.nl/s/scripta/graphics/SG-header-RSS.gif Scripta Geologica http://www.scriptageologica.nl New data on Early Cretaceous (Hauterivian-Barremian) heteromorphic ammonites from northern Germany http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10140a01 The stratigraphic ranges and systematics of heteromorphic ammonites from Lower Cretaceous (Hauterivian-Barremian) deposits in Lower Saxony, northern Germany, are revised. Nine genera and forty-seven species of the family Ancyloceratidae Gill, 1871, are described. One genus (Fissicostaticeras) and 20 species are new; Emericiceras ressense, E. sornayiforme, E. serpentinum, E. subtilicostatum, E. gotti, E. hannoverense, E. kemperi, Crioceratites hastensis, C. subisocostatus, C. vermiformis, Fissicostaticeras claviferum, F. aequicostatoides, F. rarocinctoides, Paracrioceras kleini, Acrioceras (Acrioceras) sarstedtense, A. (A.) crassico-statum, A. (A.) aegidii, A. (A.) longum, A. (A.) astrictum and Uhligia aegidii.

]]> Micheil V. Kakabadze Eocene to Miocene holoplanktonic Mollusca (Gastropoda) of the Aquitaine Basin, southwest France http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10141a01 Holoplanktonic Mollusca collected from c. 60 localities in Cenozoic (Eocene-Ypresian to Miocene-Serravallian) rocks of the Aquitaine Basin (southwest France) are represented by 75 taxa: five supposed Heteropoda (Pterotracheoidea) and 70 Pteropoda (69 Thecosomata, one Gymnosomata). All Heteropoda and 19 species of the Pteropoda had to be included in open nomenclature or with a query. Twelve species of pteropods are described as new to science: Heliconoides daguini sp. nov., H. merlei sp. nov., H. pyrenaica sp. nov. and Limacina? vegrandis sp. nov. from the Ypresian; Creseis antoni sp. nov. and Vaginella gaasensis sp. nov. from the Rupelian; Clio lozoueti sp. nov. and Clio vasconiensis sp. nov. from the Chattian; Diacrolinia cluzaudi sp. nov., from the Aquitanian; Creseis roesti sp. nov. from the Aquitanian/Burdigalian; and Heliconoides mermuysi sp. nov. and Creseis tugurii sp. nov. from the Early Burdigalian. Neotypes are designated for Diacrolinia aquensis, D. orbignyi and Vaginella depressa. The Aquitaine Basin assemblages are correlated with the existing holoplanktonic mollusc zonation for the North Sea Basin. Zones 9 (Ypresian), 10 (Lutetian) and 11/12 (Priabonian) could be recognised in the Aquitaine Basin Eocene, zones 15a (Rupelian) and 16b (Chattian) in the Oligocene, and zones 17 (Aquitanian-Burdigalian), 18 (Late Burdigalian), 18a (Langhian) and 19 (Serravallian) in the Miocene. Zone 17 could be subdivided on the basis of occurrences observed in the Aquitaine Basin, into three subzones, 17a (Aquitanian), 17b (earliest Burdigalian) and 17c (middle Burdigalian).

Mots-clés – Heteropoda, Pteropoda, taxonomie, biostratigraphie, espèces nouvelles, Bassin d’Aquitaine, Eocène-Miocène.

Des mollusques holoplanctoniques collectés dans environ 60 localités du Cénozoïque (Eocène-Yprésien à Miocène-Serravallien) du Bassin d’Aquitaine (sud-ouest de La France) sont représentés par 75 taxons: cinq Heteropoda (Pterotracheoidea) supposés et 70 Pteropoda (69 Thecosomata, une Gymnosomata). Tous les Heteropoda et 19 espèces de Pteropoda ont dû être laissés en nomenclature ouverte ou comportent un doute. Douze espèces de ptéropodes sont décrites comme nouvelles pour la science: Heliconoides daguini sp. nov., H. merlei sp. nov., H. pyrenaica sp. nov. et Limacina? vegrandis sp. nov., de l’Yprésien; Creseis antoni sp. nov. et Vaginella gaasensis sp. nov., du Rupélien; Clio lozoueti sp. nov. et Clio vasconiensis sp. nov. du Chattien; Diacrolinia cluzaudi sp. nov., de l’Aquitanien; Creseis roesti sp. nov. de l’Aquitanien/Burdigalien; et Heliconoides mermuysi sp. nov. et Creseis tugurii sp. nov., du Burdigalien inférieur. Des néotypes sont désignés pour Diacrolinia aquensis, D. orbignyi et Vaginella depressa. Les assemblages du Bassin d’Aquitaine sont corrélés avec la zonation de mollusques holoplanctoniques existant pour le Bassin de la Mer du Nord. Les zones 9 (Yprésien), 10 (Lutétien) et 11/12 (Priabonien) ont pu être reconnues dans l’Éocène du Bassin d’Aquitaine, les zones 15a (Rupélien) et 16b (Chattien) dans l’Oligocène, et les zones 17 (Aquitanien-Burdigalien), 18 (Burdigalien supérieur), 18a (Langhien) et 19 (Serravallien) dans le Miocène. La zone 17 a pu être subdivisée sur la base des occurrences observées en Aquitaine en trois sous-zones, 17a (Aquitanien), 17b (Burdigalien basal) et 17c (Burdigalien moyen).

]]> Bruno Cahuzac Islands: Palaeontology, Geology and Tectonics http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a01 S.K. Donovan Island formation and tectonic processes http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a02 G. Draper Volcanic island evolution and the environmental impact of volcanic activity: examples from a Cenozoic island arc in the Caribbean http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a03 T.A. Jackson Terrestrial and coastal landscape evolution on tropical oceanic islands http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a04 H.A. Viles Misinterpreting by localism: transposing European geology and tectonics onto Antillean islands http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a05 S.K. Donovan Tectonics, islands and island hopping in the Early Palaeozoic benthos http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a06 D.A.T. Harper Rudists and the Pacific in the Late Jurassic and Early Cretaceous http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a07 P.W. Skelton On present day islands and past distributions http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a08 W. Renema Island slopes and jumbled shell beds http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a09 S.K. Donovan Integration of the fossil record into Wallacean biogeography http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a10 H.J.M. Meijer Old teeth, new methods: microtexture and morphometry analysis provide insight in gradual evolution and dietary change in the extinct bovid Myotragus http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a11 D.E. Winkler Limestone caves and the Quaternary record of terrestrial tetrapods on islands http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a12 Donald A. McFarlane How near, how far? Adaptive radiation in mammals and birds on various islands http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a13 L.W. van den Hoek Ostende Life on a block of limestone: Evolutionary, ecological and geological dynamics of isolated malacofaunas on tropical karst http://www.scriptageologica.nl/cgi/t/text/text-idx?c=scripta;rgn=main;view=text;idno=m10142a14 M. Schilthuizen