![]() ![]() He did a pilot study involving five samples from the skull-and-mandible burial site, 13 burials at Crenshaw of entire bodies and samples of tooth enamel from 56 animals in southwest Arkansas. Samuelsen has received a $14,750 grant from the National Science Foundation to do the research, which he estimates will take a year and a half. Other UA researchers who will be involved in the project include Erik Pollock and Barry Shaulis. Lead contamination is common now, so it's important to conduct the research in a clean-lab environment. It's a "room inside a room" with HEPA-filtered air. Samuelsen will work closely with Adriana Potra of the UA's Department of Geosciences because some of the isotopic work will be done in that department's metal-free radiogenic isotope laboratory. The university in Fayetteville is one of the few places that has equipment capable of doing the research, said Samuelsen, referring to a Nu Plasma multicollector inductively coupled plasma mass spectrometer, which measures how much of each isotope is present in lead or strontium. Some of the enamel samples will come from as far away as Illinois. The research will include tooth enamel from deer, rabbits, possums, raccoons and squirrels. "You're assessing the human's location based on the ratio of lead in animal teeth," he said. Humans and animals were both eating plants in the same areas, so it doesn't matter if they weren't eating the same plants, Samuelsen said. Lead and strontium are elements that occur naturally and would have been in the soil and plants. If the remains of local people are buried in the burial site, the lead and strontium isotopes in their tooth enamel should correspond with those of non-migratory animals that lived in the same area at about the same time, Samuelsen said. ![]() Lead has six isotope ratios, compared with one for strontium, making it a better marker for the research. It will be employed in conjunction with a method that he has previously used to examine strontium isotopes in tooth enamel. Samuelsen, 36, of Tampa, Fla., has developed a method of examining lead isotopes in tooth enamel that he believes will determine whether the remains in the skull-and-mandible burial ground belonged to locals. The remains in the skull-and-mandible burial site date from about A.D. Samuelsen has worked for the survey since 2004. He's Samuelsen's boss and graduate adviser. Sabo is also director of the Arkansas Archeological Survey, part of the University of Arkansas System that studies and protects archaeological sites in the state. "I guess you could draw an analogy with the big cathedral towns of medieval Europe," said George Sabo III, who is chairman of the board of trustees for the Caddo Heritage Museum in Binger, Okla. "The dispersed Caddo population may have returned to Crenshaw at various times during the year to conduct ceremonies, to bury their dead among relatives at their ancestral homeland, and to mark special occasions." Glen Akridge of the Arkansas Archeological Society wrote for the encyclopedia. 1000 and for the next 400 years, the site is thought to have been used primarily as a ceremonial center, occupied by only a few Caddo elites and their families," D. 900, the Fourche Maline culture at Crenshaw began to decline with the beginning of Caddo cultural traditions in the area, according to the Encyclopedia of Arkansas History & Culture. ![]() It also was a large village for most but not all of that time, Samuelsen said.Īround A.D. 700 to 1400 along the Red River in Miller County. Transporting only skulls and jawbones would have been easier than carrying back bodies or full skeletons, especially at a time before the Caddo had horses.Ĭrenshaw was a large ceremonial center from about A.D. After they died, their skulls and jawbones could have been returned to the village for ceremonial burial, similar to the custom today of the deceased being returned to family plots or church cemeteries for burial. He published a paper in the Journal of Archaeological Science saying the burial ground could contain the remains of people, or their relatives, who lived around Crenshaw, possibly farming the more rural areas. Many of them believe that it contains trophies of war - heads and jawbones of enemies from far-away battlefields.īut in 2016, Samuelsen, a doctoral candidate at the University of Arkansas, Fayetteville, argued strongly for a different hypothesis. Since its discovery in the 1960s, researchers have debated the meaning of the skull-and-mandible cemetery, as it has come to be known. The prehistoric Caddo village in southwest Arkansas has a burial ground that contains at least 114 human skulls and 238 additional jawbones. John Samuelsen hopes to solve the mystery of Crenshaw. ![]()
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