"I've been working in this region for 30 years, and I've never seen such a beautifully preserved bed with so many high quality and rare specimens, including Obamus and Attenborites," said paleontologist Mary Droser of the University of California-Riverside, the lead author of two new studies about the discoveries.
The researchers dubbed the fossil bed "Alice's Restaurant Bed," a tribute to the Arlo Guthrie song and its lyric, "You can get anything you want at Alice's Restaurant."
The soft-bodied animals were visible as fossils cast in sandstone that had been preserved for hundreds of millions of years. The species no longer exists.
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"The two genera that we identified are a new body plan, unlike anything else that has been described," Droser said. "We have been seeing evidence for these animals for quite a long time, but it took us a while to verify that they are animals within their own rights and not part of another animal."
The studies appear in the Australian Journal of Earth Sciences. Other authors include Pete Dzaugis and Scott Evans, both from the University of California-Irvine.