The Cambrian Period (541 million years ago–485.4 million years ago) saw a huge proliferation of new species. Burgess Shale animals occupy a huge space in the public imagination, fueled by iconic ...
Charles D. Walcott indexes locality numbers according to states, localities, and formations in what appears to be an address book. He also includes Burgess Shale fossils. Locations are listed ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." The 500-million-year-old Burgess Shale is home to a newly-identified species. Balhuticaris voltae is ...
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