Archaeology news: 100 million-year-old ancient turtle fossil discovered in Texas, USA

Archaeologists have discovered a new, 100 million-year-old turtle fossil in Texas, USA. The ancient remains are believed to be the earliest remnants of the side-necked turtle in North America and have unravelled some of the mysteries surrounding reptile migration from the relatively unknown Cenomanian age.

Archaeologists in Texas, USA have discovered the remains of the oldest side-necked turtle in North America. The turtle, which has been named Pleurochayah appalachius, was well adapted for coastal living and had large bony attachments to its upper arms.

The site sits on the remnants of an old river delta from the Late Cretaceous period (80 to 66 million years ago), which was believed to flow through the Dallas-Fort Worth area.

Scientists have been using the dried-up river delta to unravel numerous fossilised remains over a number of years.

Archaeologists had previously discovered dinosaur and crocodilian fossils at the site.

Now, they’ve made a brand new discovery, which could transform their understanding of hard-to-track reptiles.

The unearthed fossil belonged to an extinct lineage of pleurodiran turtle – a type of side-necked turtle.

Side-necked turtles withdrew their necks sideways into their shells when they’ve threatened.

The discovery hints that side-necked turtles migrated to North America around the Cenomanian age – between 100 and 94 million years ago.

The archaeologists, who reported their findings in Scientific Reports, uncovered a number of adaptations on the turtle.

These adaptations suggest that it was a coastal-dwelling species.

In particular, it had large bony attachments on its upper arms.

The attachments would provide powerful swimming strokes, and suggested the turtle would swim with a rowing style of movement, as opposed to the modern-day flapping motion.

P.appalachius also had an unusually thick outer shell bone, when compared with its inner shell bone. It would have given the turtle even more protection from predators, especially in the marine environment, the scientists said.

Lead author of the study, and senior research specialist at the Midwestern University College of Graduate Studies, Brent Adrian, said: “This discovery provides the earliest evidence of side-necked turtles in North America.

“[It] expands our understanding of the first migrations of the extinct bothremydids [a type of extinct side-necked turtle].

“It further establishes the Arlington Archosaur Site as an important fossil unit that is revealing the foundations of an endemic Appalachian fauna.”

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The AAS has been used by archaeologists since 2009, although the river delta was first discovered six years earlier. Active excavations have been ongoing, almost continually, since then. About 2,000 individual fossils have been discovered at the site, ranging from multiple species of both animals and plants.

A Unique Native American Map Everyone Should See

Finding an address on a map can be taken for granted in the age of GPS and smartphones. But centuries of forced relocation, disease and genocide have made it difficult to find where many Native American tribes once lived.

Aaron Carapella, a self-taught mapmaker in Warner, Okla., has pinpointed the locations and original names of hundreds of American Indian nations before their first contact with Europeans.

As a teenager, Carapella says he could never get his hands on a U.S. map like this, depicting more than 600 tribes — many now forgotten and lost to history. Now, the 34-year-old designs and sells maps as large as 3 by 4 feet with the names of tribes hovering over the land they once occupied.

“I think a lot of people get blown away by, ‘Wow, there were a lot of tribes, and they covered the whole country!’ You know, this is Indian land,” says Carapella, who calls himself a “mixed-blood Cherokee” and lives in a ranch house within the jurisdiction of the Cherokee Nation.

For more than a decade, he consulted history books and library archives, called up tribal members and visited reservations as part of research for his map project, which began as pencil-marked poster boards on his bedroom wall. So far, he has designed maps of the continental U.S., Canada and Mexico. A map of Alaska is currently in the works.

What makes Carapella’s maps distinctive is their display of both the original and commonly known names of Native American tribes, according to Doug Herman, senior geographer at the Smithsonian National Museum of the American Indian in Washington, D.C.

“You can look at [Carapella’s] map, and you can sort of getting it immediately,” Herman says. “This is Indian Country, and it’s not the Indian Country that I thought it was because all these names are different.”

He adds that some Native American groups got stuck with names chosen arbitrarily by European settlers.

They were often derogatory names other tribes used to describe their rivals. For example, “Comanche” is derived from a word in Ute meaning “anyone who wants to fight me all the time,” according to the Encyclopaedia Britannica.

“It’s like having a map of North America where the United States is labelled ‘gringos’ and Mexico is labelled ‘wetbacks,’ ” Herman says. “Naming is an exercise in power. Whether you’re naming places or naming peoples, you are therefore asserting a power of sort of establishing what is reality and what is not.”

Look at a map of Native American territory today, and you’ll see tiny islands of reservation and trust land engulfed by acres upon acres ceded by treaty or taken by force.

Carapella’s maps, which are sold on his website, serve as a reminder that the population of the American countryside stretches back long before 1776 and 1492.

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Carapella describes himself as a former “radical youngster” who used to lead protests against Columbus Day observances and supported other Native American causes. He says he now sees his mapmaking as another way to change perceptions in the U.S.

“This isn’t really a protest,” he explains. “But it’s a way to convey the truth in a different way.”

Tennessee’s Tattooing Tools Dated to More Than 5,500 Years Ago

According to a Science News report, a new study of turkey bones unearthed in 1985 in a burial pit at the Fernvale site in central Tennessee suggests that they may have been used by Native Americans to make tattoos between 5,520 and 3,620 years ago.

These pigment-stained bones are the world’s oldest known tattooing tools, say archaeologist Aaron Deter-Wolf of the Tennessee Division of Archaeology in Nashville and his colleagues.

The find suggests that Native American tattoo traditions in eastern North America extend back more than a millennium earlier than previously thought (SN: 3/4/19).

Ötzi the Iceman, who lived around 5,250 years ago in Europe, displays the oldest known tattoos (SN: 1/13/16), but researchers haven’t found any of the tools used to make the Iceman’s tattoos.

Excavations in 1985 revealed these turkey bones and other elements of a probable tattoo kit in a man’s burial pit at Tennessee’s Fernvale site, the researchers report in the June Journal of Archaeological Science: Reports.

Damage on and near the tips of the two turkey leg bones resembles distinctive wear previously observed on experimental tattooing tools made from deer bones, Deter-Wolf’s team says.

In that research, tattooed lines in fresh slabs of pigskin were produced by a series of punctures with tools that had tips coated in homemade ink.

Experimental tattooing left ink remnants several millimetres from tools’ tips, a pattern also seen with red and black pigment residues on the Fernvale tools.

Two turkey wing bones found in the same Fernvale grave display microscopic wear and pigment residues that likely resulted from applying pigment during tattooing, the scientists say.

Pigment-stained seashells in the grave may have held solutions into which tattooers dipped those tools.