Roger Portell, Ask-a-Scientist

Ask-a-Scientist at a Museum event

Research Interests

Systematics, paleoecology, biogeography, and biostratigraphy of Cenozoic macro-invertebrates of the southeastern USA, Caribbean, and Central and South America with an emphasis on arthropods, echinoderms, brachiopods, and mollusks.


Selected Current Projects

  • Walking across the Island Arc: The Oligocene volcanic to sedimentary evolution of Antigua, West Indies (National Geographic)
  • Macroevolutionary consequences of profound climate change on niche evolution in marine mollusks
  • Estimating extinction risk as a function of niche breadth and geographic range size using Pliocene to Recent mollusks
  • Two enigmas, one fossil assemblage: Gigantism and dolomitization in the Miocene of Florida
  • A new genus of Teredinidae (Bivalvia) from the lower Miocene Chipola Formation of Florida
  • New fossil crabs from the early Paleocene of Alabama