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Ana Margarita Valenzuela Toro

Assistant researcher

CIAHN Atacama

Caldera, Chile

Scholar investigating marine ecosystems and marine mammal fauna on ecological and evolutionary scales. Expertise in biogeochemistry, paleontology, comparative morphology, and specimen and museum-based research.

Ecology and Evolution, UNIVERSITY OF CALIFORNIA-SANTA CRUZ. Estados Unidos, 2022
Ecology and Evolution, UNIVERSITY OF CALIFORNIA-SANTA CRUZ. Estados Unidos, 2020
Biological Sciences, UNIVERSIDAD DE CHILE. Chile, 2014
Biological Sciences, UNIVERSIDAD DE CHILE. Chile, 2011

Graduate researcher Full Time

UNIVERSITY OF CALIFORNIA-SANTA CRUZ

Santa Cruz

Santa Cruz, Estados Unidos

2016 - 2022

Teacher assistant Part Time

University of California Santa Cruz

Santa Cruz, Estados Unidos

2019 - 2022
Field paleontologist Other

Consultora Paleosuchus Limitada

Santiago, Chile

2012 - 2016

Biology Letters Early Career Researcher Competition

ROYAL SOCIETY

Estados Unidos, 2023

Selected as a runner-up in this competition, which aimed to select the best papers published in Biology Letters authored by early career researchers.
Chancellor’s Award. University of California Santa Cruz

UNIVERSITY OF CALIFORNIA-SANTA CRUZ

Estados Unidos, 2021

Dissertation Year Fellowship. One quarter of funding (stipend plus academic and tuition fees). US$14,263
Peter Buck Predoctoral Fellowship

SMITHSONIAN INSTITUTION

Estados Unidos, 2020

Project name: “Diving into the deep past: Unraveling the foraging ecology and habitat preferences of extinct pinnipeds.” US$67,427
Vertebrate Paleontology collection study award

MUSEUM OF NATURAL HISTORY-LOS ANGELES

Chile, 2016

Aimed to cover expenses associated with research travel to the museum collections.


Exceptional morphological and taxonomic diversity of early seals (Phocidae) from the Atacama Region, Chile Valenzuela-Toro, Ana M.; Gutstein, Carolina S.; Suarez, Mario E. Article ISI HISTORICAL BIOLOGY (2024)
Aquatic mammal fossils in Latin America – a review of records, advances and challenges in research in the last 30 years Viglino, Mariana; Valenzuela-Toro, Ana M.; Benites-Palomino, Aldo; Hernández-Cisneros, Atzcalli Ehécatl; Simon-Gutstein, Carolina; Fernández Aguirre, Gabriel; Velez-Juarbe, Jorge; Cozzuol, Mario A.; Buono, Mónica R.; Loch, Carolina Article The Latin American Journal of Aquatic Mammals (2023)
Feeding morphology and body size shape resource partitioning in an eared seal community Valenzuela-Toro, Ana M.; Mehta, Rita; Pyenson, Nicholas D.; Costa, Daniel P.; Koch, Paul L. Article ISI BIOLOGY LETTERS (2023)
Unexpected decadal density-dependent shifts in California sea lion size, morphology, and foraging niche Valenzuela-Toro, Ana M.; Costa, Daniel P.; Mehta, Rita; Pyenson, Nicholas D.; Koch, Paul L. Article ISI CURRENT BIOLOGY (2023)
A new marine mammal assemblage from central Chile reveals the Pliocene survival of true seals in South America Benites-Palomino, Aldo; Valenzuela-Toro, Ana M.; Figueroa-Bravo, Constanza; Varas-Malca, Rafael M.; Nielsen, Sven N.; Simon Gutstein, Carolina; Carrillo-Biceno, Jorge D. Article ISI HISTORICAL BIOLOGY (2022)
New data from the first discovered paleoparadoxiid (Desmostylia) specimen shed light into the morphological variation of the genus <i>Neoparadoxia</i> Matsui, Kumiko; Valenzuela-Toro, Ana M.; Pyenson, Nicholas D. Article ISI SCIENTIFIC REPORTS (2022)
NEw SEAL (CARNIVORA, PHOCIDAE) RECORD FROM THE LATE MIOCENE-PLIOCENE OF GUAFO ISLAND, SOUTHERN CHILE Valenzuela-Toro, Ana M.; Pyenson, Nicholas D. Article ISI AMEGHINIANA (2022)
Anti-racist interventions to transform ecology, evolution and conservation biology departments Cronin, Melissa R.; Alonzo, Suzanne H.; Adamczak, Stephanie K.; Baker, D. Neve; Beltran, Roxanne S.; Borker, Abraham L.; Favilla, Arina B.; Gatins, Remy; Goetz, Laura C.; Hack, Nicole; Harencar, Julia G.; Howard, Elizabeth A.; Kustra, Matthew C.; Maguina, Rossana; Martinez-Estevez, Lourdes; Mehta, Rita S.; Parker, Ingrid M.; Reid, Kyle; Roberts, May B.; Shirazi, Sabrina B.; Tatom-Naecker, Theresa-Anne M.; Voss, Kelley M.; Willis-Norton, Ellen; Vadakan, Bee; Valenzuela-Toro, Ana M.; Zavaleta, Erika S. Article ISI NATURE ECOLOGY & EVOLUTION (2021)
First record of chimaeroid fish <i>Ischyodus</i> from the Upper Jurassic of southwestern Gondwana Otero, Rodrigo A.; Bravo, Constanza Figueroa; Soto-Huenchuman, Paula; Fernandez-Collemann, Sara; Valenzuela-Toro, Ana M.; Gutstein, Carolina S. Article ISI ACTA PALAEONTOLOGICA POLONICA (2021)
LATIN AMERICAN CHALLENGES Valenzuela-Toro, Ana M.; Viglino, Mariana Article ISI NATURE (2021)
Extreme dispersal or human-transport? The enigmatic case of an extralimital freshwater occurrence of a Southern elephant seal from Indiana Valenzuela-Toro, Ana M.; Zicos, Maria H.; Pyenson, Nicholas D. Article ISI PEERJ (2020)
Oldest record of monk seals from the North Pacific and biogeographic implications Velez-Juarbe, Jorge; Valenzuela-Toro, Ana M. Article ISI BIOLOGY LETTERS (2019)
What do we know about the fossil record of pinnipeds? A historiographical investigation Valenzuela-Toro, Ana; Pyenson, Nicholas D. Article ISI ROYAL SOCIETY OPEN SCIENCE (2019)
Largest baleen whale mass mortality during strong El Nino event is likely related to harmful toxic algal bloom Häussermann, Verena; Gutstein, Carolina S.; Beddington, Michael; Cassis, David; Olavarria, Carlos; Dale, Andrew C.; Valenzuela-Toro, Ana M.; Perez-Alvarez, Maria Jose; Sepúlveda, Hector H.; McConnell, Kaitlin M.; Horwitz, Fanny E.; Försterra, Günter Article ISI SCOPUS PEERJ (2017)
A NEW DWARF SEAL FROM THE LATE NEOGENE OF SOUTH AMERICA AND THE EVOLUTION OF PINNIPEDS IN THE SOUTHERN HEMISPHERE Valenzuela-Toro, AM; Pyenson, ND; Gutstein, CS; Suarez, ME Article ISI SCOPUS PAPERS IN PALAEONTOLOGY (2016)
Elephant seal (Mirounga sp.) from the Pleistocene of the Antofagasta Region, northern Chile Valenzuela-Toro, AM; Gutstein, CS; Suarez, ME; Otero R.; Pyenson, ND Article ISI SCOPUS Journal of Vertebrate Paleontology (2015)
Repeated mass strandings of Miocene marine mammals from Atacama Region of Chile point to sudden death at sea Pyenson, N., Gutstein, C., Parham, J., Le Roux, J., Carreño, C., Metallo, A., Rossi, V., Little, H., Santelli, C., Valenzuela-Toro, A., Velez-Juarbe, J., Rubilar-Rogers, D., Cozzuol, M., Suárez, M. Article ISI SCOPUS PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES (2014)
Pinniped turnover in the South Pacific Ocean: New evidence from the Plio-Pleistocene of the Atacama Desert, Chile Valenzuela-Toro A.M.; Gutstein C.S.; Varas-Malca R.M.; Suarez M.E.; Pyenson N.D. Article ISI SCOPUS Journal of Vertebrate Paleontology (2013)


When physiology and ecology meet: the interdependency between foraging ecology and reproduction in Otariids Costa, Daniel P.; Valenzuela-Toro, Ana M. BookSection (2021)
Mamíferos marinos (excepto cetáceos) fósiles de Chile Valenzuela-Toro, Ana M.; Gutstein, Carolina S. BookSection (2015)


Measuring the very dead from the living=> understanding fossil diversity by analyzing the osteology of modern true seals Smithsonian Institution Proyecto 2015-2015 Investigador(a)
"Faunal Turnover in Southern Hemisphere=> Looking for new evidence from eastern coast South Pacific Ocean" National Geographic Society (9391-13) Proyecto 2013-2015 Inv. Principal
Seals from the late Neogene of the eastern coast of the South Pacific Ocean=> morphological variation or taxa diversity? Smithsonian Institution Proyecto 2013-2013 Investigador(a)
Excavación sistemática del yacimiento de titanosaurios de quebrada La Higuera, Región de Atacama=> Integrando datos tafonómicos y paleoambientales Fondo Apoyo Investigación Patrimonial, DIBAM Proyecto 2011-2011 Personal técnico y/o de apoyo
Insights into the evolution of modern marine ecosystems from a Miocene bonebed in the Atacama Desert of Chile The National Geographic Society Research Grant (8903-11, 9019-11) Proyecto 2011-2013 Investigador(a)