Results 121 to 130 of about 3,184 (221)

The Indo-Pacific ammonite Mayaites in the Oxfordian of the Southern Andes [PDF]

open access: yes, 2018
Oxfordian Iitho- and biostratigraphy of the Chilean and Argentine Andes is reviewed (P. N. Stipanicic). Within the Chacay Group, the Lower to basal Upper Oxfordian La Manga Formation, below, mostly detrital and biogenic, and the Upper Oxfordian Auquilco ...
Stipanicic, P. N.   +2 more
core   +1 more source

L'évolution des peuplements d'ammonites au cours de l'Oxfordien inférieur (Zone à Mariae et Zone à Cordatum) du Jura (Est de la France) [The evolution of ammonite associations during the Early Oxfordian (Mariae and Cordatum zones) in the Jura area (eastern France)]

open access: yesCarnets de Géologie, 2010
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  

Oxfordian echinoids of Bałtów

open access: yes, 2004
The autecology of echinoids from the Middle Oxfordian coraliferous limestones of Bałtów (NW margin of the Holy Cross Mountains, Central Poland) is discussed, as aparent from the morphology of tests, ambulacral pores for tube feet, and spines. Inferred is
Radwańska, U.
core  

Biostratigraphic subdivisions of Bimammatum Biozone (Upper Oxfordian) in the nororiental Iberian Chain: fades and range of discontinuities

open access: yes, 1995
Middle to Upper Oxfordian rocks in the northeastern Iberian Chain (Spain) are formed by bioclastic sponge limestones (Yatova Fm.). The development of the sponge facies, however, appears geographically and stratigraphically limited by the development of ...
Meléndez Hevia, Guillermo   +2 more
core  

Integrated stratigraphy of the reference sections for the Callovian-Oxfordian boundary in European Russia

open access: yes, 2013
The most complete succession of the Callovian-Oxfordian boundary recorded in European Russia is the Dubki section, where the authors have carried out integrated paleontological and magnetostratigraphical studies.
Pimenov, M.   +8 more
core  

110-million-years-old fossil suggests early parasitism in shrimps. [PDF]

open access: yesSci Rep, 2023
Lima D   +7 more
europepmc   +1 more source

New biostratigraphic data from the Callovian-Oxfordian La Manga Formation, Neuquen Basin, Argentina: Evidence from an ammonite condensed level

open access: yes, 2012
The La Manga Formation constitutes most of the sedimentary record of the Callovian-Oxfordian in the Neuquén Basin. This stratigraphic unit represents the middle part of the Lotena Mesosequence, which is dominated by carbonates with interbedded shales ...
Martín-Chivelet, J.   +9 more
core  

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