Paleontologists discover possible DNA remains in fossil turtle that lived 6 million years ago in Panama, where continents collide.
: the olive ridley and the Kemp's ridley. Despite being among the most common sea turtles in much of the Caribbean Sea and elsewhere, little is known about their history or evolution. The remains of a turtle shell recently found on Panama's Caribbean coast represent the oldest fossil evidence of these turtles ever found.
The remains were analyzed by a team of paleontologists led by Dr. Edwin Cadena of the Universidad del Rosario in Bogotá, Colombia, who is also a research associate at the Smithsonian Tropical Research Institute in Panama.turtles, the researchers discovered something unexpected in the fossil bones of this turtle: traces of DNA. After detecting preserved bone cells with nucleus-like structures, they used a solution called DAPI to test for the presence of the genetic material.
"The Caribbean fossils from Panama that we have managed to rescue over the years are helping to rewrite the history of marine vertebrates of the Isthmus," said Carlos De Gracia, co-author of the study and a doctoral fellow affiliated with STRI who is funded by Panama's Office for Science and Technology .
Paleontologists have succeeded in reconstructing the chewing motion of an early mammal that lived almost 150 million years ago. This showed that its teeth worked extremely precisely and surprisingly ...
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