Fossils of Four New Species Of Whale Found Under a California Highway - PHOTOSSubmitted by emalvini on Wed, 02/20/2013 - 13:03
Fossils of Four New Species Of Whale Found Under a California Highway - PHOTOS
February 20, 2013 10:15 am
During a highway-widening project in California’s Laguna Canyon, workers stumbled upon a “treasure trove” of hundreds of bones of ancient marine mammals, ScienceNOW reports from the AAAS conference in Boston. Paleontologists called to the site dated the bones to around 17 to 19 million years old and were surprised to find not one but four new species of ancient, now-extinct toothed baleen whales.
Baleen whales today include filter-feeding giants such as humpbacks and blue whales. But millions of years ago, these animals’ relatives had teeth. Remnants of those ancestors still appear in modern whale fetuses, which begin to develop teeth in the womb but eventually reabsorb the dental structures before enamel forms.