Much like the asteroid that struck Chicxulub, Mexico, 66 million years ago, Dale A. Russell had a massive impact on dinosaurs and other fossil vertebrates, or at least on our understanding of them. Our current view of some dinosaurs as relatively brainy reptiles, on par with the likes of birds, and popularized by Jurassic Park, stems from an early landmark study of his (Russell 1969). The search for an extraterrestrial cause for their extinction, now widely accepted as the result of the aforementioned bolide impact (Alvarez et al. 1980; Hildebrand et al. 1991), was...

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