Results 31 to 40 of about 3,769 (223)
Estudios Geologicos, 1987 En un punto cercano a la localidad de Gorgo a Cerbara (Apenino Umbro-Marchigiano, Italia) se ha efectuado el levantamiento de una columna estratigráfica correspondiente al intervalo.
O. Kälin, S. Ureta
doaj +1 more source
European Journal of Taxonomy, 2023 This work provides the first revision and illustration of the type material of the ammonite species Parahoplites abichi Anthula [Type species of Protacanthoplites Tovbina] and Parahoplites aschiltaensis Anthula [Type species of Acanthohoplites Sinzow ...
C. Frau
semanticscholar +1 more source
Síntesis bioestratigráfica del Calloviense de Ricla (Zaragoza. Cordillera Ibérica)
Estudios Geologicos, 1984 Se presenta en esta nota un avance de esquema bioestratigráfico para el Calloviense de Riela (Zaragoza) sobreuna muestra de 567 ammonoideos a lo largo de un perfil de 70 metros.
E. Sequeiros, E. Cariou
doaj +1 more source
Lower and Middle Cenomanian ammonites from the Morondava Basin, Madagascar [PDF]
, 2013 Lower and Middle Cenomanian ammonite assemblages have been collected on a bed-by-bed basis from localities at Vohipaly and Mahaboboka, Madagascar, as well as from outcrops around Berekata, all in the Morondava Basin, southwest Madagascar.
Dembicz, Krzysztof +4 more
core +1 more source
El Aaleniense en el área de Talveila (Soria). Bioestratigrafía y evolución sedimentaria
Estudios Geologicos, 1986 En el área de Talveila, en el tramo litológico correspondiente al intervalo de tiempo que va desde el Toarciense superior hasta el Bajociense inferior, se han distinguido una serie de secuencias sedimentarias separadas por discontinuidades más O menos ...
S. Ureta, A. Goy
doaj +1 more source
Revision of haploceratid ammonoids from the Štramberk Limestone, Jurassic–Cretaceous boundary beds (Outer Western Carpathians) [PDF]
Acta Palaeontologica PolonicaHaploceratids from the Štramberk Limestones represent three genera Haploceras, Hypolissoceras, and Volanites. The most species reach genus is Haploceras.
Zdeněk Vašíček, Petr Skupien
doaj +1 more source
Exploring the limits of morphospace: Ontogeny and ecology of late Viséan ammonoids from the Tafilalt, Morocco [PDF]
Acta Palaeontologica Polonica, 2016 Early late Viséan ammonoid assemblages in Morocco are composed of diverse and well-preserved specimens. The material was found in a plain in the Tafilalt (eastern Anti-Atlas).
Christian Klug +2 more
doaj +1 more source
Publicación Electrónica de la Asociación Paleontológica Argentina, 2023 We report on remains of the buccal apparatus and possible associated structures for the Late Cretaceous ammonite Maorites seymourianus from the López de Bertodano Formation (Antarctic Peninsula).
Daniel Andrés Morón-Alfonso +3 more
doaj +1 more source
Using abundance data to assess the relative role of sampling biases and evolutionary radiations in Upper Muschelkalk ammonoids [PDF]
, 2011 The Middle Triassic ammonoid genus Ceratites diversified spectacularly within the Germanic Muschelkalk Basin during the Anisian/Ladian (244–232 Mya). Previous studies have interpreted this diversification as a sequence of rapid, endemic radiations from a
Kiessling, Wolfgang +1 more
core +1 more source
New findings of rhyncholites in the Middle and Upper Jurassic of Crimea
Известия высших учебных заведений: Геология и разведка, 2019 Until now thefindingsof rhyncholites from the Jurassic marine sediments of Crimea were very scarce. In both the Oxfordian and Kimmeridgian of Crimea, rhyncholites were never found despite the fact that in Western and Central Europe they are very numerous
A. A. Mironenko, V. N. Komarov
doaj +1 more source