The oldest bat skeletons in the world have been identified as a new species, helping scientists fill in the spotty fossil record of these flying mammals and providing new clues about how they evolved
Today bats are among the most successful animals on the planet, with more than 1,400 species accounting for one-fifth of all mammal species. They live on every continent except Antarctica, and they are often critical to ecological stability, providing key functions such as pollination, seed dispersal, and insect population management.
“The thought is that … bats originated from some sort of small, insectivorous mammals that were probably arboreal,” says, a paleontologist at Arizona State University and one of the authors of the study. “But there’s a lot of those,” he adds, pointing out that we don’t know which ones may be related to bats. “Most of them are only known from isolated teeth and jaw fragments.”
After asking for some measurements of the fossil, which had been found at a private quarry and was listed for sale, he reached out to Nancy Simmons, a bat expert at the American Museum of Natural History. She agreed with him that it looked like a new species, and AMNH bought the fossil for its collections.
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