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Neanderthals
and Cro-magnons did not coexist on the Iberian Peninsula, suggests re-analysis
of dating
Neanderthals
and Cro-magnons did not coexist on the Iberian Peninsula, suggests re-analysis
of dating
Date:
April 14,
2014
Source:
University of the Basque Country
Summary:
The meeting between a Neanderthal and one of the first
humans, which we used to picture in our minds, did not happen on the Iberian
Peninsula. That is the conclusion reached by an scientists after redoing the
dating of the remains in three caves located on the route through the Pyrenees
of the first beings of our species: L'Arbreda, Labeko Koba and La Viña.
...............................
The meeting between a Neanderthal and one of the first
humans, which we used to picture in our minds, did not happen on the Iberian
Peninsul
That is the
conclusion reached by an international team of researchers from the Australian
National University, Oxford University, the UPV/EHU-University of the Basque
Country, University of Maryland, Universitat de Girona and the University of
Oviedo, after redoing the dating of the remains in three caves located on the
route through the Pyrenees of the first beings of our species: L'Arbreda,
Labeko Koba and La Viña.
The paper,
entitled "The chronology of the earliest Upper Palaeolithic in northern
Iberia: New insights from L'Arbreda, Labeko Koba and La Viña," has been
published in the Journal of Human Evolution. Until now, the carbon 14
technique, a radioactive isotope which gradually disappears with the passing of
time, has been used to date prehistoric remains.
When about
40,000 years, in other words approximately the period corresponding to the
arrival of the first humans in Europe, have elapsed, the portion that remains
is so small that it can become easily contaminated and cause the dates to
appear more recent. It was from 2005 onwards that a new technique began to be
used; it is the one used to purify the collagen in DNA tests.
Using this
method, the portion of the original organic material is obtained and all the
subsequent contamination is removed. And by using this technique, scientists
have been arriving at the same conclusions at key sites across Europe: "We
can see that the arrival of our species in Europe took place 8,000 years
earlier than what had been thought and we can see the earliest datings of our
species and the most recent Neanderthal ones, in which, in a specific regional
framework, there is no overlapping," explained Alvaro Arrizabalaga,
professor of the department of Geography, Prehistory and Archaeology, and one
of the UPV/EHU researchers alongside María-José Iriarte and Aritza Villaluenga.
The three
caves chosen for the recently published research are located in Girona
(L'Arbreda), Gipuzkoa (Labeko Koba) and Asturias (La Viña); in other words, at
the westernmost and easternmost tips of the Pyrenees and it was where the flow
of populations and animals between the peninsula and continent took place.
"L'Arbreda is on the eastern pass; Labeko Koba, in the Deba valley, is
located on the entry corridor through the Western Pyrenees (Arrizabalaga and
Iriarte excavated it in a hurry in 1988 before it was destroyed by the building
of the Arrasate-Mondragon bypass) and La Viña is of value as a paradigm, since
it provides a magnificent sequence of the Upper Palaeolithic, in other words,
of the technical and cultural behaviour of the Cro-magnons during the last
glaciation," pointed out Arrizabalaga.
The
selecting of the remains was very strict allowing only tools made of bones or,
in the absence of them, bones bearing clear traces of human activity, as a
general rule with butchery marks, in other words, cuts in the areas of the
tendons so that the muscle could be removed.
"The
Labeko Koba curve is the most consistent of the three, which in turn are the
most consistent on the Iberian Peninsula," explained Arrizabalaga. 18
remains were dated at Labeko Koba and the results are totally convergent with
respect to their stratigraphic position, in other words, those that appeared at
the lowest depths are the oldest ones.
The main
conclusion -- "the scene of the meeting between a Neanderthal and a
Cro-magnon does not seem to have taken place on the Iberian Peninsula" --
is the same as the one that has been gradually reached over the last three
years by different research groups when studying key settlements in Great
Britain, Italy, Germany and France.
"For 25
years we had been saying that Neanderthals and early humans lived together for
8,000-10,000 years. Today, we think that in Europe there was a gap between one
species and the other and, therefore, there was no hybridation, which did in
fact take place in areas of the Middle East," explained Arrizabalaga.
The UPV/EHU
professor is also the co-author of a piece of research published in 2012 that
puts back the datings of the Neanderthals. "We did the dating again in
accordance with the ultrafiltration treatment that eliminates rejuvenating
contamination, remains of the Mousterian, the material culture belonging to the
Neanderthals from sites in the south of the Peninsula. Very recent dates had
been obtained in them -- up to 29,000 years -- but the new datings go back to
44,000 years older than the first dates that can be attributed to the
Cro-Magnons," explained the UPV/EHU professor.
Story
Source:
The above
story is based on materials provided by University of the Basque Country. Note: Materials
may be edited for content and length.
Journal
References:
- Julià Maroto, Manuel Vaquero, Álvaro Arrizabalaga, Javier Baena, Enrique Baquedano, Jesús Jordá, Ramon Julià, Ramón Montes, Johannes Van Der Plicht, Pedro Rasines, Rachel Wood. Current issues in late Middle Palaeolithic chronology: New assessments from Northern Iberia. Quaternary International, 2012; 247: 15 DOI: 10.1016/j.quaint.2011.07.007
- R.E. Wood, A. Arrizabalaga, M. Camps, S. Fallon, M.-J. Iriarte-Chiapusso, R. Jones, J. Maroto, M. de la Rasilla, D. Santamaría, J. Soler, N. Soler, A. Villaluenga, T.F.G. Higham. The chronology of the earliest Upper Palaeolithic in northern Iberia: New insights from L'Arbreda, Labeko Koba and La Viña. Journal of Human Evolution, 2014; 69: 91 DOI: 10.1016/j.jhevol.2013.12.017
Cite This
Page:
University of the Basque Country.
"Neanderthals and Cro-magnons did not coexist on the Iberian Peninsula,
suggests re-analysis of dating." ScienceDaily. ScienceDaily, 14 April
2014. <www.sciencedaily.com/releases/2014/04/140414092000.htm>.