EDAD Y NUEVOS HALLAZGOS DE ICNITAS DE MAMIFEROS Y AVES EN EL YACIMIENTO PALEOICNOLOGICO DE PEHUEN-CO (PLEISTOCENO TARDIO), PROVINCIA DE BUENOS AIRES. ARGENTINA

Authors

  • Silvia A. Aramayo Departamento de Geología, Universidad Nacional del Sur, Bahía Blanca.
  • Teresa Manera de Bianco Departamento de Geología, Universidad Nacional del Sur, Bahía Blanca.

Abstract

Since the discovery of this site in 1986. new ichnites of mammals and birds were Iound, as follows: 1) an outstanding trackway composed of 35 footprints assigned to Neomegatherichnum pehuencoensis Aramayo and Manera de Bianco, 1987, (Xenarthra, Tardigrada); 2) an isolated footprint assigned to Glyptodon sp. (Xenarthra, Cingulata); 3) a new trackway of Megalamaichnum tulipensis Aramayo and Manera de Bianco, 1987, (Artiodactyla, Camelidae) which requires emendation of the diagnosis; 4) a trackway assigned to Rhea americana (Aves, Rheiformes); 5) isolaled ichnites considered to be of podicipediform birds (Aves, Podicipediformes). The M. A. S. dating method on organic matter gave a conventional radiocarbon age of 12.000 ± 110 years B.P. for the foot print-bearing sequence.

KEY WORDS. Ichnology. Mammal Ichnites. Bird lchnites. Late Pleistocene. Buenos Aires. Argentina.

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Published

2015-10-01

Issue

Vol. 4 No. 1 (1996)

Section

Thematic Volume

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