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First record of gastroliths associated with elasmosaur remains from La Colonia Formation (CampanianeMaastrichtian), Chubut, Patagonia Argentina, with comments on the probable depositional palaeoenvironment of the source of the gastroliths
(Elsevier, 2013-03-31)
A gastrolith set, comprising 197 elements, associated with an indeterminate elasmosaurid plesiosaur collected from the CampanianeMaastrichtian La Colonia Formation, Chubut, Argentina, is described. Most of the gastroliths ...
Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
(Asociación Paleontológica Argentina, 2014)
The La Colonia Formation (Campanian-Maastrichtian), a sedimentary succession that represents a continental to marginal marine depositional environment, crops out along the southeastern margin of the Somuncurá Plateau in ...
Elasmosaurs (Sauropterygia, Plesiosauria) from the La Colonia Formation (Campanian-Maastrichtian), Argentina
(Taylor & Francis Ltd, 2013-06)
Elasmosaur postcranial remains from the La Colonia Formation (Campanian–Maastrichtian), Chubut Province, Patagonia, Argentina, are described. The new material has small dimensions and caudal vertebrae with parapophyses ...
Revision of Sulcusuchus erraini (Sauropterygia, Polycotylidae) from the Upper Cretaceous of Patagonia, Argentina
(Taylor & Francis, 2013-06-07)
Sulcusuchus erraini, from the upper Campanian–lower Maastrichtian of Patagonia, Argentina, is the only polycotylid from the Southern Hemisphere for which the skull and mandible are known. The diagnosis of the species and ...
New South American record of the Cretaceous–Paleogene boundary interval (La Colonia Formation, Patagonia, Argentina)
(Elsevier, 2021-10)
The La Colonia Formation is an Upper Cretaceous to Paleogene shallow marine sedimentary unit in Chubut Province (Patagonia), Argentina that preserves important vertebrate and plant fossils. Despite good exposures and ...
Azolla sporophytes and spores from the late cretaceous and Paleocene of Patagonia, Argentina
(University of Chicago Press, 2019-09)
Premise of research. While Azolla has a rich fossil record based on dispersed megaspore apparatuses and microspore massulae, fossil sporophytes are relatively rare. In this contribution, we describe two fossil Azolla species ...
The most complete specimen of Kawanectes lafquenianum (Sauropterygia, Plesiosauria): New data on basicranial anatomy and possible sexual dimorphism in elasmosaurids
(Academic Press Ltd - Elsevier Science Ltd, 2021-09)
Elasmosaurids are a cosmopolitan group of plesiosaurians that radiated during the Late Cretaceous. A new specimen of the small sized elasmosaurid Kawanectes lafquenianum is described here. New features of the basicranium ...
Pescadores artesanais da colônia Z-16: relações de produção-formação e práxis política
(Universidade Federal do ParáBrasilInstituto de Ciências da EducaçãoUFPAPrograma de Pós-Graduação em Educação, 2017)
Brackish to freshwater dinoflagellate cyst assemblages from the La Colonia Formation (Paleocene?), Northeastern Patagonia, Argentina.Asociaciones de quistes de dinoflagelados de agua salobre a dulce de la formacion la colonia (Paleoceno?), noreste de Patagonia, Argentina
(Asociacion Paleontologica Argentina, 2014-04)
The palynological analysis of the La Colonia Formation at the San Miguel section yielded conspicuous organic-walled dinoflagellate cyst (dinocyst) and green algae assemblages. The presence of a monotypic palaeoperidinioid ...