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Aptian angiosperm pollen from the Ticó Flora Patagonia, Argentina
(University Of Chicago Press, 2013-06)
Six angiosperm pollen types studied with SEM are recorded in the Cretaceous (early Aptian) Tico´ flora on the basis of material recovered from two localities: Anfiteatro de Tico´ and Bajo Tigre. Clavatipollenites dominates, ...
The genus Ptychoceras d'Orbigny in the Aptian-Albian of Patagonia and Antarctica
(E Schweizerbartsche Verlags, 2008-07)
Aptian - Albian Ptychoceratidae of southern Patagonia and James Ross Island, Antarctica are described. They are represented by Ptychoceras adpressum (J. SOWERBY, 1814), P. forbesianum STOLICZKA, 1865 and P. hamaimense ...
Desmoceratidae and Silesitidae (ammonitida) from the Aptian - Albian of Antarctica
(E Schweizerbartsche Verlags, 2006-12)
Aptian-Albian Desmoceratidae and Silesitidae of James Ross Island, Antarctica are described. Desmoceratid Puzosiinae are represented by Parasilesites IMLAY, Pseudosilesites EGOIAN, Feruglioceras LEANZA, Umsinenoceras KENNEDY ...
Late Aptian angiosperm pollen grains from Patagonia: earliest steps in flowering plant evolution at middle latitudes in southern South America
(Elsevier, 2015-08)
The angiosperm pollen record from the Anfiteatro de Ticó and Punta del Barco formations (Baqueró Group) is reported. The relevance of these floras is that they are accurately dated as late Aptian, and one of the oldest ...
Alienopteris livingstonensis gen. et sp. nov., enigmatic petrified tree fern stem (Cyatheales) from the Aptian Cerro Negro Formation, Antarctica
(Academic Press Ltd - Elsevier Science Ltd, 2009-04)
A new genus and species of Mesozoic fern, Alienopteris livingstonensis gen. et sp. nov., is defined, based on permineralized stems recovered from the Aptian Cerro Negro Formation (Antarctica). This new taxon is characterized ...
Chronostratigraphic constraints and paleoenvironmental interpretation of the Romualdo Formation (Santana Group, Araripe Basin, Northeastern Brazil) based on palynology
(2020-12-01)
The Santana Group of the Araripe Basin is a major paleontological unit in Brazil, incorporating two important Cretaceous Konservat-Lagerstätten. The lower formations are Aptian, but the age of the uppermost Romualdo Formation ...
Carbonate microfacies and chemostratigraphy of a late Aptian-early Albian marine distal section from the primitive South Atlantic (SE Brazilian continental margin): Record of global ocean-climate changes?
(Elsevier B.V., 2017-06-01)
Late Aptian-early Albian limestones from the eastern Brazilian continental margin record the early evolution of the South Atlantic Ocean. In Tethyan and North Atlantic domains, a planktic foraminiferal turnover and ...
Comments on paper by M. Arai “Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective”Discussão do artigo "Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective” de M. Arai
(Sociedade Brasileira de Geologia, 2016)
Foraminíferos planctônicos e bentônicos do intervalo aptianoalbiano do DSDP Site 364 (bacia de Kwanza): taxonomia, bioestratigrafia, paleoecologia e implicações paleoceanográficas
(Universidade do Vale do Rio dos Sinos, 2012-11-12)
This work presents a taxonomic, biostratigraphic and paleoecologic study on the planktic and benthic foraminiferal faunas recovered from the late Aptian-late Albian carbonatedominated succession of Deep Sea Drilling Project ...