Matches in DBpedia 2014 for { ?s ?p Everett C. Olson (November 6, 1910 — November 27, 1993) was an American zoologist, paleontologist, and geologist noted for his seminal research of origin and evolution of vertebrate animals.Olson identified a mass extinction that occurred 270 million years ago and which now carries his name - Olson's Extinction.Some of his other notable research also included genus of Slaugenhopia genus of Trimerorhachis, and genus of Waggoneria.. }
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- Everett_C._Olson comment "Everett C. Olson (November 6, 1910 — November 27, 1993) was an American zoologist, paleontologist, and geologist noted for his seminal research of origin and evolution of vertebrate animals.Olson identified a mass extinction that occurred 270 million years ago and which now carries his name - Olson's Extinction.Some of his other notable research also included genus of Slaugenhopia genus of Trimerorhachis, and genus of Waggoneria.".