Results 71 to 80 of about 3,337 (175)
Revisión de algunos ammonites aptienses colectados por Gaston Astre en la Provincia de Lérida, Cataluña, España [PDF]
We study the three best preserved ammonites collected by Astre in 1924-1925 in Lleida Province, Catalonia, Spain, in order to assess their taxonomic assignment. We also include images of these ammonoids since they were not illustrated in Astre's original
Moreno-Bedmar, Josep A., Minor, Keith P.
core +1 more source
Holostratigraphy of the Kahmah regional Series in Oman, Qatar, and the United Arab Emirates
The stratigraphic framework of the uppermost Jurassic - Lower Cretaceous interval of the Gulf area is revised using both historical and recently acquired paleontological (ammonites, calpionellids, foraminifers, 'calcareous' algae), sedimentological and ...
Granier Bruno
doaj
Depuis la fin du 19ème siècle, l'intervalle comprenant l'Albien supérieur élevé, le Cénomanien, le Turonien et le Coniacien basal a été subdivisé d'abord en zones d'ammonites puis, à partir du milieu du 20ème siècle, en zones de foraminifères ...
Amédro Francis, Robaszynski Francis
doaj
30 p. : ill., map ; 26 cm.Includes bibliographical references (p. 27-30).New fossil collections provide additional information about the late Campanian and Maastrichtian ammonites from the Navesink Formation of New Jersey.
Cobban, William A., 1916-2015. +3 more
core
Généralement considéré comme une période chaude, le Crétacé supérieur témoigne d'une extension maximale des domaines marins. Les optima transgressifs du Cénomanien et du Turonien inférieur induisent la création de nouveaux domaines de mer épicontinentale
Courville Philippe
doaj
About the stratigraphic position of the Lower Aptian Roloboceras hambrovi (Ammonoidea) level
In the stratotype of the Lower Aptian substage the position of the assemblage that includes Roloboceras spp. and Megatyloceras spp. has been clearly established as being in the middle part of the upper Bedoulian. Some authors have erected this horizon as
Conte Gabriel +3 more
doaj
Rare Middle Jurassic ammonites of the families Erycitidae, Otoitidae and Stephanoceratidae from southern Germany [PDF]
Dietze, Volker +10 more
core +1 more source
Valanginian ammonites in East Greenland
ammonites, Boreal, Tethys, bed-by-bed collection, Valanginian, Wollaston Forland, East ...
Alsen, Peter
core
The study of more than 40 sections in the "Creniceras renggeri marls" of the French Jura Range (Lower Oxfordian) has found: * a precise biochronostratigraphic subdivison of 16 successive populations or associations which appears to be stable over the ...
Jardat Rémi
doaj
OCCURRENCE OF LIASSIC FAUNAS AT WAANEY (UANEI) PROVINCE OF BAY, SOUTH—WESTERN SOMALIA
The sequence exposed at Waaney (South—western Somalia) consists, from bottom to top, of the following horizons: A) Blackish marly limestones, thickness 20 m; B) Grey and greenish marls and shales, thickness 10 m; C) Vacuolar yellowish—grey limestone ...
PAOLO CANUTI +3 more
doaj

