Sunday, April 25, 2010

12th Street Mammoths

What's not to love about mammoths and the street artists that dig them? And also because we just love mammoths, here at AVRPI...

Shot while strolling down on 12th St., Denver, CO, April 24th, 2010.

Thursday, April 08, 2010

Jamie Hodgkins - Neandertal zooarchaeology talk at UC Denver tomorrow

Tomorrow, Friday April 9, 2010 (at 2:00PM in AD 200), the UC Denver Department of Anthropology is hosting a colloquium by Jamie Hodgkins on her zooarchaeological research at two French Mousterian sites. Details below.


Tracking Climate-Driven Changes in Neandertal Subsistence Behaviors and Prey Migration

Jamie M. Hodgkins
School of Human Evolution and Social Change
Arizona State University


This project evaluates the Climatic Stress Model of Neandertal extinction, which holds that successive cold phases doomed Neandertals to extinction before modern humans entered Europe. Specifically, this project tests the model’s assumptions that 1) cold climates stressed Neandertal populations, and 2) global climate changes affected local Neandertal habitats. An analysis of Neandertal butchering on red deer and reindeer skeletal material deposited during global warm and cold phases from two French sites – Pech de l’Azé IV and Roc de Marsal – helps test the hypothesis that Neandertals were stressed by cold climates since comparing butchering strategies during different climates will address whether cold climates induced hyper-processing of bones. Because mammals migrate less in warm, well vegetated environments, but more in cold, open environments, the hypothesis that global climates affected local habitats can also be tested through isotopic reconstruction of large mammal migration patterns (e.g., bison, horse, red deer and reindeer). These reconstructions are based on the principle that living tissues absorb chemical isotopes in the water and nutrients that are unique to the region in which they are consumed. Identifying isotopic variation in mammalian fossils enables home range size and migration distance to be inferred, providing an indication of whether environments at Pech de l’Azé IV and Roc de Marsal tracked global climates.

When: Friday, April 9, 2010 – 2:00PM
Where: Administration Building, Room AD 200,University of Colorado Denver

Wednesday, April 07, 2010

Another brick in the wall: A Paleolithic stone structure from Theopetra, Greece

There's a brief report at Discovery News that provides some detail about an artificial stone structure that appears to have been built at the entrance of Theopetra Cave (Greece) ResearchBlogging.orgto protect its inhabitants from the elements (see also comments here). That, in and of itself is not news; what is news is the age of the thing: 23,000 years BP, obtained by optically stimulate luminescence (OSL).

The structure is a stone wall that blocked two-thirds of the entrance to the Theopetra cave near Kalambaka on the north edge of the Thessalian plain. It was constructed 23,000 years ago, probably as a barrier to cold winds.

“An optical dating test, known as Optically Stimulated Luminescence, was applied on quartz grains nested within the stones. We dated four different samples from the sediment and soil materials, and all provided identical dates,” Nikolaos Zacharias, director of the laboratory of archaeometry at the University of Peloponnese, told Discovery News.

This is definitely cool, as there are not very many such structures known from the Paleolithic. One possible, though somewhat shaky, comparable example is that of "two low, roughly linear wall-like piles of cobbles, each about 50m long [that] border a portion of the scatter" of the scatter of mostly Upper Paleolithic stone tools recovered at site MAC064, Iran (Rosenberg 1984:83).

I was surprised, though, that the report refers to the Theopetra structure as the oldest 'man-made' (sic) structure. This is because I can think of at least one other stone structure, at Ucagizli Cave in Turkey (Kuhn et al 2003: 114-116 - available as a free pdf here), that dates to slightly older than ca. 30,000 BP. Here's what it looks like:

And though it appears at first glance to be perhaps less impressive than the Theopetra wall (though the picture in the DN report is a bit unclear as to what the exact boundaries of the wall are), Kuhn et al. (2003: 114) describe the Ucagizli wall as a feature consisting "of a single arched course of limestone blocks, each 20-40cm in length. The blocks form a 'wall' running roughly parallel to the back wall of the cave at a distance of 1.5 to 2m from it. The alignment is clearly artifical: it corresponds with neither the cave's dripline nor any obvious fault or crack in the roof , and there were no blocks of comparable size in the surrounding sediments. Moreover, several of the blocks were set on edge rather than resting on their broad face." By analogy to ethnographic observations, they interpret it as most likely demarcating the edges of "a bedding area in the back of the cave."

So yes, the Theopetra wall is old, but not necessarily the oldest evidence of an artificial stone structure that we have for the Upper Paleolithic. In any case, it'll be very interesting to see what other material is associated with this wall at Theopetra, to see whether or not its interpretation as a windbreak is borne out. As I've discussed before with the case of La Folie, the correlation between features and other aspects of the archaeological record is critical in inferring their ultimate function.


Kuhn, S. L., Stiner, M. C., Kerry, K. W., and Güleç, E. 2003. The early Upper Paleolithic at Üçağızlı Cave (Hatay, Turkey): preliminary results. In Goring-Morris, N., and Belfer-Cohen, A. (eds.) More Than Meets the Eye: Studies on Upper Palaeolithic Diversity in the Near East, Oxbow Books, Oxford, pp. 106-117.

Rosenberg, Michael (1990). Stone "Walls" and Paleolithic Tools: The MAC064 Site Iran, 28, 83-88

Friday, April 02, 2010

Hearth stones, four of them!

Greg Laden has the latest edition of the Four Stone Hearth anthro blog carnival up at his neck of the interwebs. Check it out, if you like your blogging anthropological in any way, shape, or form.