The late Paleozoic Ice Age (LPIA) has long been known as an important climatic event in Earth’s h... more The late Paleozoic Ice Age (LPIA) has long been known as an important climatic event in Earth’s history. The end of the LPIA is the only example in Earth’s history where a vegetated and biologically complex Earth transitioned from a bipolar icehouse to a greenhouse state. Recent studies show that LPIA climate changes broadly affected marine invertebrate faunas: glaciations decreased origination and extinction, and long-term, gradual global warming during the final deglaciation altered paleocommunity composition. Regional far-field studies demonstrate that LPIA shallow tropical paleocommunities were stable or weakly distinguishable, and comprised of similar sets of eurytopic taxa. Regional effects of LPIA glaciation and glacial retreat on high paleolatitude (“near-field”) marine biotas have received very little attention. We hypothesized that glacial to post-glacial fluctuations in near-field settings were not conducive for community stability. It was predicted that near glacial marg...
The late Paleozoic Ice Age (LPIA) has long been known as an important climatic event in Earth’s h... more The late Paleozoic Ice Age (LPIA) has long been known as an important climatic event in Earth’s history. The end of the LPIA is the only example in Earth’s history where a vegetated and biologically complex Earth transitioned from a bipolar icehouse to a greenhouse state. Recent studies show that LPIA climate changes broadly affected marine invertebrate faunas: glaciations decreased origination and extinction, and long-term, gradual global warming during the final deglaciation altered paleocommunity composition. Regional far-field studies demonstrate that LPIA shallow tropical paleocommunities were stable or weakly distinguishable, and comprised of similar sets of eurytopic taxa. Regional effects of LPIA glaciation and glacial retreat on high paleolatitude (“near-field”) marine biotas have received very little attention. We hypothesized that glacial to post-glacial fluctuations in near-field settings were not conducive for community stability. It was predicted that near glacial marg...
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Papers by Alejandra Pagani