which were acquired during a long period of dominantly single polarity the Permo-Carboniferous Reversed Superchron (PCRS). The distributions show a significantly lower virtual geomagnetic pole (VGP) ...
"See that road cut?" he asked. "That's your Permo-Triassic transition zone. Brace yourself, you're about to go through the extinction." The fossils embedded in this road cut suggest that synapsids ...
The strata from old to new include the Taishan Group and Cambrian, Ordovician, Carboniferous, Permian, Triassic, Neogene and Quaternary strata, lacking Upper Ordovician to Lower Carboniferous, ...
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