Which two continents show the clearest fossil evidence of Xenacanthus distribution?
Answer
North America and Europe
The examination of the fossil record provides geographical indicators for where Xenacanthus existed during the late Paleozoic Era. The established distribution points specifically toward occurrences across landmasses that are now recognized as North America and Europe. The presence of fossils across these areas, which were situated differently when continents were configured as Pangaea, emphasizes that suitable freshwater habitats were widespread across the globe during the Carboniferous and Permian periods. This widespread distribution across the relevant land areas during that time suggests connectivity through ancient drainage systems.
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