Wednesday, July 19, 2017

Barcelona Beakers (Olalde et al, 2017)

Continuing with narratives from  "The Beaker Phenomenon and the Genomic Transformation of Northwest Europe" by Olalde et al, 2017.

The Paris Street Beakers in Catalonia were mostly buried with Maritime and epi-Maritime ceramics, and two of the later Pyrenees Group.  Unfortunately, there isn't any specific information on which layer the ten individuals come from or with which ceramics they were associated with.  There was also an eleventh individual that did not make it into the study.

In a previous post, I noted that Beakers associated with the old school Maritime-inspired pottery, the best I can so far tell, appear to lack or have a reduced Steppe component.  This appears true in at least two other regions outside of Iberia [Hégenheim], and maybe a third.

The Cerdanyola newspaper reports that two of the women were first degree relatives.  If I am reading correctly, all of them were lactase persistent except for one woman.  
"Individual 5 from Level II"  Fig 1 of (Gomez-Merino et al, 2011)
Interesting are the paternal and maternal markers.  50% of the men are R1b of sorts, but essentially lack the East European ancestry.  The maternal profiles are 50% haplogroup H, 40% are H1.  No two are the same, so I'll assume the eleventh individual was a sister excluded from further analysis.

Looking on a continental scale, the Olalde authors concluded "...we could significantly exclude Iberian sources [for the Beaker complex]...These results support largely different origins for Beaker Complex individuals, with no discernible Iberia-related ancestry outside Iberia."

By "Significantly exclude", we might assume they have excluded from the continental ethnic a component directly attributable to early Iberian Bell Beakers, not just Iberians.  When the genomes are public, we might have more confidence or we might have more questions!  The unequal resurgence of hunter ancestry in the Middle Neolithic may give us some pause.

Fig. 7 of (Frances et al, 2006)
And the Harvard Team seems to be pausing in releasing the genomes.  Fine tuning?  Probably not, but the Middle Neolithic seems like it might have a few more surprises.

The narrative from Olalde et al:

"Paris Street (Cerdanyola del Vallès, Barcelona, Spain)
Contact person: Joan Francès Farré

During urban construction work at Paris Street in Cerdanyola del Vallès (Vallès Occidental, Barcelona province) in 2003, a large amount of skeletal material and associated pottery was unearthed. Follow-up excavation uncovered a Chalcolithic hypogeum with more than 9,000 human remains as well as lithic and ceramic material, the latter assigned to the Bell Beaker tradition.  The hypogeum displays several occupational phases. The 59 oldest one presented an ash layer underlying the first inhumations that could have a ritualistic significance. Charcoal from that basal layer was dated to 2878-2496 calBCE (4110±60 BP, UBAR-817). The first funerary phase (UE-15) shows a large number of successive inhumations (minimal number of individuals 36) that are still in anatomical position, placed in lateral decubitus and with flexed knees. Seven arrow points were retrieved from this layer. A thin, upper layer (UE-5) probably represents a re-organization of the existing funerary space, prior to the second funerary phase (UE-2). At UE-5, two Bell Beaker vessels of maritime style were retrieved. The UE-2 layer comprises fewer inhumations, and all of them were accompanied by typical Bell Beaker vessels: three in Maritime style, and two in epi-Maritime style. There were also numerous additional pieces of diverse typology. Over this layer, a final one, labelled UE-3, contained two more skeletons arranged over riverbed pebbles with a Bell Beaker vessel of a regional style known as "Pyrenaic". A bone from this layer yielded the youngest date in the hypogeum of 2469-2206 calBCE (3870±45 BP, UBAR-860). We recovered ancient DNA data from 10 individuals:
I0257/10362A: 2571–2350 calBCE [R1b1 + H1ax]

I0258/10367A: 2850–2250 BCE [H1q]
I0260/10370A: 2850–2250 BCE [I2a2a + K1a2a]
I0261/10378A: 2850–2250 BCE [R1b1a(xR1b1a1a2a) +U5b1i]
I0262/10381A: 2850–2250 BCE [U5b3]
I0263/10385A: 2850–2250 BCE [X2b+226]
I0823/10360A: 2850–2250 BCE [H1]
I0825/10394A: 2474–2300 calBCE (3915±29 BP, MAMS-25939)  [G2 + K1a4a1]                                                                  I0826/10400A: 2833–2480 calBCE (4051±28 BP, MAMS-25940) [H1t]
I1553/10388A: 2850–2250 BCE" [pre-H103]

From Fig S1, Olalde et al, 2017

The article concerning the testing of DNA

L’hipogeu calcolític del carrer París de Cerdanyola del Vallès, 2006 [Link]

Gibaja, J. F., Palomo, A., Francés, J., Majó, T., 2006 – Les puntes de sageta de l’hipogeu calcolític del carrer Paris (Cerdanyola): caracterització tecnomorfològica i funcional. Cypsela, 16: 127-133. [Link]

G. Gómez-Merino, T. Majó, C. Lorenzo, F. Gispert-Guirado, M. Stankova  et J. Francés, « Identification of Cinnabar by non-Destructive Techniques on a Human Mandible from Carrer Paris Chalcolithic Hypogeum (Cerdanyola del Vallès, Barcelona, Spain) », ArcheoSciences, 35 | 2011, 241-247. [Link]

"Els grups del neolitic final, calcolitic i bronze antic.  Els inicis de la metal-lurgia"
Araceli Martin Colliga.  Cota Zero n. 18, 2003. Vic, p. 76-105 ISSN 0213-4640 [Link]

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