INGEOSUR   20376
INSTITUTO GEOLOGICO DEL SUR
Unidad Ejecutora - UE
artículos
Título:
Late Quaternary Palaeoichnological sites at Southern Atlantic coast of Buenos Aires Province, Argentina:Mammal, Bird and Hominid evidences.
Autor/es:
ARAMAYO, SILVIA A.; MANERA DE BIANCO, TERESA
Revista:
ICHNOS-AN INTERNATIONAL JOURNAL FOR PLANT AND ANIMAL TRACES
Editorial:
TAYLOR & FRANCIS INC
Referencias:
Lugar: Londres; Año: 2009 vol. 16 p. 25 - 32
ISSN:
1042-0940
Resumen:
Palaeontological and palaeoichnological studies were made
along the southeastern coast of Buenos Aires province, Argentina.
Continental Late Pleistocene and continental, transitional and
marine Holocene stratigraphic units were identified. The former
are represented by fossil mammal bones and ichnites dated from
16,000 to 12,000 y. B.P. Continental Early Holocene beds dated
circa 8,100 years B.P. contain fish, rodent and bird remains.
Middle Holocene sediments 6,930 to 6,570 years B.P. are recorded
by deposits bioturbated by estuarine crabs. During the Late
Holocene, between 5,000 and 4,800 B.P., a marine transgression is
recorded by a very rich mollusc fauna. The palaeoenvironmental
variety recorded along a few tens of kilometers of the coast is
a distinctive feature of this part of the Argentine coastal region.
At Monte Hermoso beach, in the eastern part of the studied
zone, archaeological materials were dated 7,300 years B.P., and
human footprints dated 7,125 years B.P. were also recorded.
In January 2005 some isolated human footprints were found at
Pehuen-Co palaeoichnological site, which are older than those
found at Monte Hermoso beach and of the same age as the oldest
human archaeological findings in Patagonia, that is about 12,000
yeas B.P.