Pollens d'angiospermes modernesdans du Cretace superieur des Charentes (S-W France)

Samples from Upper-Cretaceous outcrops of the classical type area (Charentes, S-W France) have yielded palynofloras.Because of the presence of many pollen types of extant families, problems of contamination are considered. But the main sources which are generally suggested fail to explain yet the total number of palynofloras.     

Note preliminaire concernant la decouverte d'une faune et d'une flore du niveau de Ronzon dans l'Oligocene inferieur du Bassin d'Aquitaine

The new locality of Ruch (Gironde), from a lateral facies of the “Calcaire de Castillon” formation has yielded an important flora and fauna. From the biostratigraphic point of view the mammalian fauna allows to show that Ruch is contemporaneous of the reference locality of Ronzon (Auvergne).     

Psychochaetetes (Varioparietes) lucentius nov. sp. (Cnidaria,chaetetida) du Tortonien superieur de la Sierra del Gorda (Nord d'Elche,province d'Alicante,Espagne)

The occurence of Ptychochaetetes (Varioparietes) lucentius nov. sp. in the Upper Tortonian from Sierra del Gorda(North of Elche, Spain) lets to hope the discovery of younger organisms.     

Premiere decouverte d'une faune de petits mammiferes dans le Paleogene du bassin d'Aurillac (Cantal): Implications stratigraphiques

The so-called “série carbonatée” of Aurillac-Arpajon basin is generally ascribed to the upper Oligocene; a newlydiscovered micrommalian fauna shows that the basis of this sequence is really older and at least of a middle oligocene age.     

Les crustaces decapodes du Cenomanien de Navarra (Espagne):Premiers resultats de l'etude des Galatheidae

Preceded by a short report on the fauna associated with Decapods in the Cenomanian from Orobe and by historical references, this note is an account on the results obtained after elaborate study of 187 specimens of Anomura belonging to Galatheidae family. Those results allow the systematic delimitation of two genera: ParagalatheaPATRULIUS, 1960 and Eomunidopsis n. gen., which produce the revision of 5 species belonging to those two genera. A provisional determination of the rest of the material (14 Brachyurans), still under consideration, is proposed.     

Biozonation du Cretace inferieur a l'aide des foraminiferes benthiques et des algues dasycladacees dans le Prebetique occidental (Cordilleres betiques,Espagne)

A biozonation based on Lituolids, Orbitolinids and Dasycladacean algae is given. Although most of the fossils used are typical of lagoonal environments, the proposed biozonation has been tested using Ammonits, Calpionellids and planktonic Forams. The present biozonation is in agreement with the ones described from other Mediterranean realms.     

Palynoflores dans la coupe de l'Albien de Foz do Folcao (Portugal)

In the area of Lisbon (Portugal) near Foz do Folcao and along the sea-shore, the transgressive facies of the marly 0611 Albian may be seen sesting on the “Upper continental sandstones of Almargem”. On the basis of the variety and of the relative frequencies of reticulate pollen grains in particular, the following age assessment can be made. The topmost part of the “Upper sandstones of Almargem” as well as the lowermost transgressive facies, just underlaying the albian levels with associated faunas, are suggested to be middle Albian.     

Presence de pollens d'Hamamelis (Hamamelidaceae,Angiospermae) dans le pliocene du Sud de la France

Pollen-analysis shows the presence of the genus Hamamelis in the pliocene flora of southern France. It contributesto the knowledge of the past distribution of taxa which are now extinct in western Europe.     

Sur une flore infraliasique du Boulonnais (Rinxent-Marquise,Pas-de-Calais,France)

As a result of the discovery of Gymnospermae in the continental beds which fill the paleokarst of the Carboniferous limestone in the Rinxent-Marquise area, it appears that during the Early Jurassic the flora of the Boulonnais contained not only Pteridophyta and Pteridospermophyta but also primitive Bennettitales and Coniferales.For this reason the flora of this area can be compared in all the aspects to the various Rhaeto-Liasic floras found in Europe in which the Podozamites distans, Podozamites schenkii, Pterophyllum aequale and Schizolepis liasokeuperina association have been discovered.     

Chronostratigraphie de la fin de la derniere glaciation,a la lumiere des resultats de l'etude lithostratigraphique et palynologique du site de Maisieres-Canal (Belgique)

The upper part of the palaeoclimatic sequence of Maisières-Canal shows a succession of four mild episodes at thetransition between the Pleniglacial and the Late-Glacial. Those four mild fluctuations are respectively correlated with Langerie, Lascaux, Angles-sur-l'Anglin and Pré-Bölling oscillations.     

Sur les conditions de gisement de l'ichthyofaune oligocene d'Aix-en-Provence (Bouches-du-Rhone): Essai de definition d'un modele paleoecologique et paleogeographique

The study of the fossil fishes preserved in 19 successive fossiliferous beds sampled while excavating in the city ofAix-en-Provence permits the elaboration of a sedimentary model for the Oligocene gypsiferous marls. These seem to have been deposited on a coastal plain, in continental waters characterized by a fluctuating, very low, salt-content.     

L'age des “Calcaires a petites huitres” de l'Ile Cremieu (Jura meridional tabulaire); Correlation des formations du Bajocien superieur de la region lyonnaise

Parkinsonids (Ammonitina) of the Subfurcatum Zone (Upper Bajocian) were found in the “Calcaires à petites huitres” formation from the northern part of Ile Crémieu. Correlations are established between different Upper Bajocian lithostratigraphic units of Mont d'Or lyonnais, Ile Crémieu and folded Jura.     

Presence de Gazella deperdita (Gervais) 1847 du gisement du Miocene superieur (Turolien) des Mistrals (Vaucluse,Sud-Est de la France)

Among the two bovid genera represented in the turolian locality Mistrals I, Gazella and Miotragocerus, the most abundant is a gazelle which, after comparison with Gazella deperdita from the Mont-Luberon, turns out to belong to this species. Resemblances between the two faunas, already noticed in the study of the Hipparions, are thus comfirmed.     

Le genre leptaenopyxis (brachiopoda,leptaenidae) dans le Devonien du Massif Armoricain (France)

The study of genus LeptaenopyxisHavlicek, 1963 in the Lower Devonian from Armorican Massif allows to recognize four species: Leptaenopyxis kerfornei n. sp., Leptaenopyxis cf. bouei (Barrande), Leptaenopyxis sp. 1 and Leptaenopyxis sp. 2. These species were described, until now, under specific name boueiBarrande, 1848. From this study it follows some biostratigraphical and palaeobiogeographical results for the Armorican Massif and its relations with surrounding areas during Lower Devonian time.     

Decouverte d'un gisement de mammiferes du Miocene moyena Collet-Redon,pres Saint-Cannat (Bouches-du-Rhone,France): Liste faunique,implications stratigraphiques et paleogeographiques

The rich fauna from Collet-Redon (B.d.R.) has yielded together big and small mammals of an astaracian age, which enables us to reconsider the age of the containing geological formation. The little species show some affinities with those of the Swiss and South-German deposits and demonstrate the filter effect of the Rhodanian Miocene sea, which was permitting only the crossing of the big mammals.     

Révision taxonomique du genre d'ammonite téthysien Simoceras et création d'un nouveau genre Volanoceras (Ammonitina,Simoceratidae)

The type-species of the genus SimocerasZittel isS. biruncinatum (Qu.). This genus includes the species-group biruncinatum (Qu.) — admirandum (Zitt.). The new genus Volanoceras is created for the volanense (Opp.) species-group which is excluded from the genus Simoceras.