El registro paleontológico de las aves del Mesopotamiense (Formación Ituzaingó; Mioceno tardío-Plioceno) de la provincia de Entre Ríos, Argentina

NORIEGA, JORGE IGNACIO; AGNOLIN, FEDERICO

INSUGEO, Miscelánea

INSUGEO

Año: 2008 p. 271 - 290

1514-4836

The fossil record of birds coming from the "Mesopotamian" levels (Upper Miocene) of the Ituzaingó Formation (Upper Miocene-Pliocene) at the Entre Ríos province, Argentina, consists in 16 taxa grouped in 8 families (Rheidae, Anatidae, Anhingidae, Palaelodidae, Phoenicopteridae, Ciconiidae, Gruidae, and Phorusrhacidae) and 6 orders. The assemblage is dominated by waterbirds (darters, ducks, flamingos, storks, and cranes) adapted to wetlands, marshes, and forested areas along the margins of the incipient Paraná River. The presence of open savanna areas develop farther from the river margins are inferred by the records of some terrestrial birds such as rhea and phorusrhacids.