Is the middle Cambrian Brooksella a hexactinellid sponge, trace fossil or pseudofossil?
More than 100 years ago, Charles Doolittle Walcott from the Smithsonian Institution was asked to examine strange star-shaped fossils with ...
More than 100 years ago, Charles Doolittle Walcott from the Smithsonian Institution was asked to examine strange star-shaped fossils with ...
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© 2023 Scienmag- Science Magazine: Latest Science News.