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Late Pleistocene sea going people may have followed a kelp highway
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Fulliam
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Late Pleistocene sea going people may have followed a kelp highway
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March 05, 2011, 02:41:22 pm »
Late Pleistocene sea going people may have followed a kelp highway
Evidence for a diversified sea-based economy among North American inhabitants dating from 12,200 to 11,400 years ago is emerging from three sites on California’s Channel Islands.
Reporting in the March 4 issue of Science, a 15-member team led by University of Oregon and Smithsonian Institution scholars describes the discovery of scores of stemmed projectile points and crescents dating to that time period. The artefacts are associated with the remains of shellfish, seals, geese, cormorants and fish. The team also found thousands of artefacts made from chert, a flint-like rock used to make projectile points and other stone tools.
Some of the intact projectiles are so delicate that their only practical use would have been for hunting on the water
Some of the intact projectiles are so delicate that their only practical use would have been for hunting on the water, said Jon Erlandson, professor of anthropology and director of the Museum of Natural and Cultural History at the University of Oregon. He has been conducting research on the islands for more than 30 years.
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Fulliam
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Re: Late Pleistocene sea going people may have followed a kelp highway
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March 05, 2011, 02:42:22 pm »
A three-view look at a chert crescent dating to ancient seafarers on San Miguel Island. Courtesy of Jon Erlandson
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Fulliam
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Re: Late Pleistocene sea going people may have followed a kelp highway
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March 05, 2011, 02:43:17 pm »
“This is among the earliest evidence of seafaring and maritime adaptations in the Americas, and another extension of the diversity of Palaeoindian economies,” Erlandson said. “The points we are finding are extraordinary, the workmanship amazing. They are ultra thin, serrated and have incredible barbs on them. It’s a very sophisticated chipped-stone technology.” He also noted that the stemmed points are much different than the iconic fluted points left throughout North America by Clovis and Folsom peoples who hunted big game on land.
The artefacts were recovered from three sites that date to the end of the Pleistocene epoch on Santa Rosa and San Miguel islands, which in those days were connected as one island off the California coast. Sea levels then were 50 to 60 metres (about 160-200 feet) below modern levels. Rising seas have since flooded the shorelines and coastal lowlands where early populations would have spent most of their time.
Erlandson and his colleagues have focused their search on upland features such as springs, caves, and chert outcrops that would have drawn early maritime peoples into the interior. Rising seas also may have submerged evidence of even older human habitation of the islands.
The newly released study focuses on the artefacts and animal remains recovered, but the implications for understanding the peopling of the Americas may run deeper.
The technologies involved suggest that these early islanders were not members of the land-based Clovis culture, Erlandson said. No fluted points have been found on the islands. Instead, the points and crescents are similar to artefacts found in the Great Basin and Columbia Plateau areas, including pre-Clovis levels at Paisley Caves in eastern Oregon that are being studied by another UO archaeologist, Dennis Jenkins.
Late Pleistocene sea-going people may have followed a “kelp highway” stretching from Japan to Kamchatka, along the south coast of Beringia and Alaska
Last year, Charlotte Beck and Tom Jones, archaeologists at New York’s Hamilton College who study sites in the Great Basin, argued that stemmed and Clovis point technologies were separate, with the stemmed points originating from Pacific Coast populations and not, as conventional wisdom holds, from the Clovis people who moved westward from the Great Plains. Erlandson and colleagues noted that the Channel Island points are also broadly similar to stemmed points found early sites around the Pacific Rim, from Japan to South America.
Six years ago, Erlandson proposed that Late Pleistocene sea-going people may have followed a “kelp highway” stretching from Japan to Kamchatka, along the south coast of Beringia and Alaska, then southward down the Northwest Coast to California. Kelp forests are rich in seals, sea otters, fish, seabirds, and shellfish such as abalones and sea urchins.
“The technology and seafaring implications of what we’ve found on the Channel Islands are magnificent,” said study co-author Torben C. Rick, curator of North American Archaeology at the Smithsonian Institution. “Some of the palaeo-ecological and subsistence implications are also very important. These sites indicate very early and distinct coastal and island subsistence strategies, including harvest of red abalones and other shellfish and fish dependent on kelp forests, but also the exploitation of larger pinnipeds and waterfowl, including an extinct flightless duck.
We think the crescents were used as transverse projectile points, probably for hunting birds
“This combination of unique hunting technologies found with marine mammal and migratory waterfowl bones provides a very different picture of the Channel Islands than what we know today, and indicates very early and diverse maritime life ways and foraging practices,” Rick said. “What is so interesting is that not only do the data we have document some of the earliest marine mammal and bird exploitation in North America, but they show that very early on New World coastal peoples were hunting such animals and birds with sophisticated technologies that appear to have been refined for life in coastal and aquatic habitats.”
The stemmed points found on the Channel Islands range from tiny to large, probably indicating that they were used for hunting a variety of animals.
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Fulliam
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March 05, 2011, 02:43:59 pm »
Jon Erlandson, executive director of the Museum of Natural and Cultural History at the University of Oregon, holds a crescent and a stemmed point. Photo: Jim Barlow
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Fulliam
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March 05, 2011, 02:44:41 pm »
“We think the crescents were used as transverse projectile points, probably for hunting birds. Their broad stone tips, when attached to a dart shaft provided a stone age shotgun-approach to hunting birds in flight,” Erlandson said. “These are very distinctive artefacts, hundreds of which have been found on the Channel Islands over the years, but rarely in a stratified context, he added. Often considered to be between 8,000 and 10,000 years old in California, “we now have crescents between 11,000 and 12,000 years old, some of them associated with thousands of bird bones.”
The next challenge, Erlandson and Rick noted, is to find even older archaeological sites on the Channel Islands, which might prove that a coastal migration contributed to the initial peopling of the Americas, now thought to have occurred two to three millennia earlier.
Research funded primarily by grants from the National Science Foundation
The 13 co-authors on the study with Erlandson and Rick were: Todd J. Braje, professor of anthropology at Humboldt State University in Arcata, Calif.; UO anthropology professors Douglas J. Kennett and Madonna L. Moss; Brian Fulfrost of the geography department of San Francisco State University; Daniel A. Guthrie of the Joint Science Department, Claremont McKenna, Scripps and Pitzer Colleges of Claremont, Calif.; Leslie Reeder, anthropology department of Southern Methodist University in Dallas, Texas; Craig Skinner of the Northwest Research Obsidian Studies Laboratory in Corvallis, Ore.; Jack Watts of Kellogg College at Oxford University, United Kingdom; and UO graduate students Molly Casperson, Nicholas Jew, Brendan Culleton, Tracy Garcia and Lauren Willis.
Links:
Erlandson webpage:
http://pages.uoregon.edu/anthro/people/faculty/core-faculty/#erlandson
Museum of Natural and Cultural History:
http://natural-history.uoregon.edu/
UO Department of Anthropology:
http://pages.uoregon.edu/anthro/
Rick webpage:
http://anthropology.si.edu/staff/Rick/Rick.html
Braje webpage:
http://www.humboldt.edu/anthropology/faculty/todd-braje.html
http://www.pasthorizons.com/index.php/archives/03/2011/late-pleistocene-sea-going-people-may-have-followed-a-kelp-highway
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