Results 71 to 80 of about 2,170 (202)

Facies analysis, stratigraphy and marine vertebrate assemblage of the lower Miocene Chilcatay Formation at Ullujaya (Pisco basin, Peru) [PDF]

, 2018
This paper is the first integrated account of the sedimentology, stratigraphy and vertebrate paleontology for the marine strata of the Chilcatay Formation exposed at Ullujaya, Pisco basin (southern Peru).
Bianucci G., Bosio G., Coletti G., Collareta A., de Muizon C., Di Celma C., Gariboldi K., Gioncada A., Lambert O., Landini W., Malinverno E., Pierantoni P. P., Urbina M., Villa I. M.   +13 more
core   +4 more sources

Design and Validation of an Open–Close Device for Integrated Environmental DNA Sampling Detects A Depth Gradient in Indian Ocean Deep‐Sea Fish Assemblages

Ecology and Evolution, Volume 15, Issue 2, February 2025.
The goal of this study was to leverage existing survey technology to design and test an eDNA sampler that captures an integrated eDNA sample over the length of a deep‐water transect. We provide a biological interpretation of the resulting data, demonstrating the usefulness of such technology to understand the ocean environments, using fish species as ...
Cindy Bessey, Andrew Martini, Alasdair Currie, Will Ponsonby, Aaron Tyndall, Ryan Crossing, Vinícius Werneck Salazar, Kathryn L. Dawkins, John J. Pogonoski, Glenn Moore, Nick Mortimer, John K. Keesing   +11 more
wiley   +1 more source

Condrictios de la Argentina y Uruguay: lista de trabajo [PDF]

, 2007
Presentamos aquí una lista actualizada de los condrictios (tiburones, rayas, quimeras y pez elefante) que han sido citados de la Argentina y Uruguay, incluyendo las especies de agua dulce de la familia Potamotrygonidae.
Lucifora, Luis O., Menni, Roberto C.
core  

Los Rajiformes (Chondrichthyes, Batomorphii) del Plioceno inferior de la Formación Arenas de Huelva, suroeste de España [PDF]

, 2014
EL Neógeno marino del suroeste de España ha sido objeto de numerosos estudios, su contenido fosilífero ha sido objeto de numerosos trabajos, abordando diferentes grupos como malacofauna (Andrés, 1982; González-Delgado, 1983), foraminíferos (Sierro, 1984;
Abad,Manuel, Antunes,Miguel, Balbino,Ausenda, Civis,Jorge, Garc�a,Edith X. M., Luz Gonz�lez-Regalado,MA, Ruiz,Francisco, Toscano-Grande,Antonio   +7 more
core   +1 more source

First record of leucism in spotted eagle ray, Aetobatus narinari (Elasmobranchii, Myliobatiformes, Aetobatidae) [PDF]

Acta Ichthyologica et Piscatoria
This paper reports the first record of leucism in the spotted eagle ray, Aetobatus narinari (Euphrasen, 1790). The specimen was captured on the coast of Seybaplaya, Campeche, on 15 August 2025, using a 20 cm mesh-size gillnet.
Armando T. Wakida-Kusunoki, Ivan Oribe-Perez, Vicente Anislado-Tolentino, Luis Fernando Del Moral-Flores, Adrián Enrique Chi Duran   +4 more
doaj   +3 more sources

Resolving Species: Urobatis halleri, U. concentricus, and U. maculatus as Subspecies [PDF]

, 2012
Hybridization is the interbreeding of separate species to create a novel species (hybrid). It is important to the study of evolution because it complicates the biological species concept proposed by Ernst Mayr (1963), which is widely adopted in biology ...
Heffernan, Scott
core   +2 more sources

River Geomorphology and Fish Diversity Around the Manseriche Gorge, the Last Andean Crossing Is in Peril

Water Resources Research, Volume 60, Issue 11, November 2024.
Abstract The transition from the Andes to the Amazon lowland hosts a high biodiversity and currently is facing several anthropogenic activities, including hydropower infrastructure projects. Little is known about the geomorphology of the Andean gorges, rivers and the interaction with the fish diversity upstream and downstream of gorges.
J. D. Abad, H. Chicchon, J. Chuctaya, A. Mendoza, H. Valverde, C. Oshiro, M. Montoya   +6 more
wiley   +1 more source

Miocene stratigraphy and vertebrate paleontology along the western side of Cerros Cadena de los Zanjones (East Pisco Basin, Peru)

Journal of Maps
The Miocene Pisco Formation (East Pisco Basin, Peru) is renowned for its abundant, well-preserved fossils of marine vertebrates, representing one of the most spectacular and complete records of Neogene marine vertebrates worldwide.
Giulia Bosio, Alberto Collareta, Matteo Pedini, Maria Elena Gastaldello, Francesco Nobile, Luca Pellegrino, Pietro Paolo Pierantoni, Elisa Malinverno, Olivier Lambert, Giuseppe Marramà, Walter Landini, Giorgio Carnevale, Rafael Varas-Malca, Claudio Di Celma, Stefano Mazzoli, Mario Urbina, Giovanni Bianucci   +16 more
doaj   +1 more source

Régime alimentaire de Dasyatis pastinaca et Myliobatis aquila (Elasmobranchii: Myliobatiformes) des Açores, Atlantique NE [PDF]

, 2016
This paper describes and discusses the feeding ecology of two stingray species that occur in the Azores: Dasyatis pastinaca and Myliobatis aquila. Both are common coastal species associated with sandy, muddy and rocky bottoms, from surface waters to ...
Barcelos, Luís Miguel Duarte, Barreiros, João P., Medeiros, João, Ponte, Dário Dinis Sousa, Santos, Cristina Sousa   +4 more
core  

Anatomía comparada del sistema digestivo de las rayas Urotrygon chilensis y Dasyatis sabina (Myliobatiformes) Comparative anatomy of the digestive system of the skates, Urotrygon chilensis and Dasyatis sabina (Myliobatiformes)

Revista Chilena de Historia Natural, 2010
La organización general del sistema digestivo de la raya pinta Urotrygon chilensis y la raya de espina Dasyatis sabina corresponde al patrón morfológico general de los Myliobatiformes.
ABRAHAM KOBELKOWSKY
doaj