Volumen 77 (3): REVISTA DE LA DESARROLLOS RECIENTES EN ICNOLOGÍA ARGENTINA ASOCIACIÓN GEOLÓGICA ARGENTINA www.geologica.org.ar Septiembre 2020 Vertebrate tracks of the Río Negro province, Patagonia, Argentina: stratigraphy, palaeobiology and environmental contexts Silvina DE VALAIS1,2, Ignacio DÍAZ-MARTÍNEZ1,2, Paolo CITTON1,2 and Carlos CÓNSOLE-GONELLA1,3 1CONICET 2IIPG - Instituto de Investigación en Paleobiología y Geología (Universidad Nacional de Río Negro-CONICET), Río Negro, 3INSUGEO - Instituto Superior de Correlación Geológica (Universidad Nacional de Tucumán-CONICET), San Miguel de Tucumán E-mails:
[email protected];
[email protected];
[email protected],
[email protected] Editor: Diana E. Fernández y Graciela S. Bressan Recibido: 14 de junio de 2019 Aceptado: 2 de octubre de 2019 ABSTRACT To date, the tetrapod ichnological record in the Río Negro province, Argentina, is known from six areas from the Permo-Triassic to Neogene. Tetrapod tracks have been identified in different palaeoenvironments and geodinamic contexts. The oldest track record is represented by the therapsid tracks from the Los Menucos Group. A prevailing Dicynodontipus and Dicynodontipus-like footprints, Lopingian-Early Triassic in age, comes from the Tscherig and Puesto Vera localities, while Pentasauropus tracks, presumably Late Triassic in age,were recognized in the Yancaqueo locality. A tridactyl track-bearing level, still unpublished (related to El Refugio Forma- tion, Middle-Upper Triassic), has been found in the Puesto Prado farm, in the Arroyo de la Ventana area. Some tracks classified as cf. Anomoepus and undetermined tridactyl tracks have been identified in the Perdomo farm (Marifil volcanic Complex). The Late Creta- ceous (Cenomanian) record is represented by the ornithopod, sauropod and theropod tracks from the Candeleros Formation (Ezequiel Ramos Mexía area).