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Skull of Hoplophoneus sp. (UWBM 87094) Oligocene, ~30 million years old. |
» Burke Paleontology Paleontology is the study of past life forms, based on plant and animal fossils and their geological contexts. Paleontologists use fossil remains to trace the evolutionary history of extinct and living organisms and to study past climates. The Burke Museum's paleontological collections contain more than 3 million specimens of fossil invertebrates, vertebrates, plants, single-celled protists, trace fossils, and modern mollusks. A portion of these collections is on display in the museum galleries. Update on Collections: |
Exhibits Northwest Origins: The Geologic History of Washington State The Burgess Shale: Evolution's Big Bang Dinosaurs of Darkness Life and Times of Washington State
Featured in Paleontology New Species of Whale Found in Fossils![]() The Burke Museum, Seattle, Pursues Research on New Whale and Dolphin Species Ground-breaking, evolutionary discoveries are literally being dug up at the Burke Museum of Natural History and Culture, Seattle. The museum houses the fossils of several entirely new whale species, dating back to about 28 million years ago. Recent discoveries reveal a more complex evolution of whales than previously thought. One new whale fossil, now on view at the Burke Museum, is among the most primitive toothless baleen whales yet described by scientists. This fossil contradicts many of the assumptions scientist have previously held about the evolution of whales. The fossil, which is a nearly complete skeleton, has a mix of primitive and advanced characteristics at an earlier time period than previously thought, requiring a revision of previously accepted whale evolution theory. Specifically, this fossil is the oldest known baleen, or mysticete, whale with no teeth. Baleen whales evolved from toothed whales (similar to orcas and dolphins) and all primitive mysticetes have both teeth and baleen. Other surprising features of the new whale are that the skull is broad on top, with the nasal opening located farther forward than in modern mysticetes. These features suggest that the fossil whale was a bottom feeder, similar to living gray whales, but much smaller. "This is a unique animal found early in the evolutionary chain. It is hard to know exactly where to place it in the evolution of whales," says Dr. Lawrence G. Barnes, Curator of Vertebrate Paleontology, at the Natural History Museum of Los Angeles County. Barnes had been working collaboratively on this particular whale fossil with Burke Museum Affiliate Curator, Jim Goedert and Burke Museum Fossil Preparator, Bruce Crowley, since 1995, when Crowley and Burke Museum staff first mounted an excavation of the fossil. It took Crowley three years to prepare and mount the skeleton for display, because it was imbedded in many pieces of concrete-like rock. "This fossil represents an unprecedented record of this animal which lived at a particularly exciting time in evolutionary terms," says Crowley. Dr. Liz Nesbitt, Curator of Invertebrate Paleontology at the Burke Museum, comments that, "This is a previously unknown genus and species of baleen whale—a very exciting find." Crowley and Barnes are currently writing the initial research manuscript on the whale describing all it's new and unusual features. The whale will be given an official scientific name in this published description. Goedert comments that, "This is an exciting discovery. We are finding whale fossils here in Washington state that are so different that they are tough to classify, and they complicate current definitions of some types of whales. Some of these new characteristics are significant enough that scientists may have to rethink the origins of some of today's whales." The result of these findings? A more complex evolutionary history of whales and dolphins is emerging. The Olympic Peninsula whale fossils in particular, may possibly be the evolutionary Rosetta stone, or "missing links," in whale evolution. (Photo of whale fossil, above, by Gabe Kean.) |
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Dolphin jaw, Miocene, Olympic Peninsula, Washington. Photo by Ron Eng |
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