Results 21 to 30 of about 2,224 (181)

Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland [PDF]

Acta Palaeontologica Polonica, 2020
The first Early Cretaceous (Valanginian–Hauterivian) ammonite fauna from the lower part of the Kościeliska Marl Formation (Wściekły Żleb Member) of the Lower Sub-Tatric (Krížna) Nappe, in the Lejowa Valley of the Tatra Mountains are described.
Zdeněk Vašíček, Błażej Błażejowski, Andrzej Gaździcki, Maria Król, Jerzy Lefeld, Petr Skupien, Andrzej Wierzbowski   +6 more
doaj   +1 more source

Morphological disparity of early ammonoids: A geometric morphometric approach to investigate conch geometry

Acta Palaeontologica Polonica, 2023
Fossils of Devonian ammonoids are abundant and well-preserved in the Anti-Atlas of Morocco; as such they provide an invaluable record of regional morphological disparity changes (diversity of shapes) that characterise the first steps of ammonoid ...
NINON ALLAIRE, SAMUEL GINOT, KENNETH DE BAETS, DIETER KORN, NICOLAS GOUDEMAND, CLAUDE MONNET, CATHERINE CRÔNIER   +6 more
doaj   +1 more source

Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Acta Palaeontologica Polonica, 2023
The rare Middle Jurassic ammonite Oecoptychius refractus is revisited based on material collected in southern Poland (Ogrodzieniec quarry) and France (St.-Laon near Loudun, western France). Based on available data and an evaluation of the literature, O.
SREEPAT JAIN, MARIUSZ A. SALAMON, GÜNTER SCHWEIGERT, BARTOSZ J. PŁACHNO   +3 more
doaj   +1 more source

MIDDLE TRIASSIC (ANISIAN) CEPHALOPODS FROM THE MECSEK MOUNTAINS, HUNGARY

Rivista Italiana di Paleontologia e Stratigrafia, 2022
Recent nautiloid and ammonoid finds from the Middle Triassic Zuhánya Limestone Formation in the Mecsek Mountains (south Hungary) proved that the formation encompasses the whole Pelsonian and the lower Illyrian substages of the Anisian Stage.
ATTILA VÖRÖS, GYULA KONRÁD, Krisztina Sebe   +2 more
doaj   +2 more sources

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, Gale, Andy, Kennedy, William James, Praszkier, Tomasz, Walaszczyk, Ireneusz   +4 more
core   +1 more source

El Lias Superior y el Dogger inferior en Gorgo a Cerbara (Apenino Central): Aspectos bioestratigráficos y sedimentológicos

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

Lower Cretaceous (Hauterivian-Albian) ammonite biostratigraphy in the Maestrat Basin (E Spain) [PDF]

, 2014
Peer reviewedPublisher ...
Bover-Arnal, T., Bulot, L. G., Company, M., Delanoy, G., Garcia, R., Gomez-Rivas, E., Grauges, A., Latil, J-L., Martin-Martin, J. D., Martinez, R., Moreno-Bedmar, J. A., Salas, R.   +11 more
core   +1 more source

Revision of haploceratid ammonoids from the Štramberk Limestone, Jurassic–Cretaceous boundary beds (Outer Western Carpathians) [PDF]

Acta Palaeontologica Polonica
Haploceratids 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

DISCOVERY OF AMMONOID JAW APPARATUS AND ASSOCIATED FEATURES USING REFLECTANCE TRANSFORMATION IMAGING (RTI)

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, Marcela Cichowolski, René Hoffmann, Maricel Gabriela Rodríguez   +3 more
doaj   +1 more source