A huge 75-foot-tall square boulder deep in Wyoming’s Bighorn Mountains has been baffling people since it was discovered.

Ordovician–Silurian extinction events The events were responsible for the extinction of 85% of all marine species on Earth. Trilobites, graptolites, bryozoans, brachiopods, and conodonts were ...

Brachiopods As SEnsitive tracers of gLobal mariNe Environment: Insights from alkaline, alkaline Earth metal, and metalloid trace element ratios and isotope systems. BASE-LiNE Earth is an Innovative ...

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This finding from the the Lower Ordovician period is a testament to the persistence of passionate fossil hunters and a significant leap forward in understanding ancient polar ecosystems. The discovery ...