Sumida & Brochu 2000. Phylogenetic Context for the Origin of Feathers.
American Zoology 40: 486-503. (This is a dense paper, but solid scientifically. Its focus is more paleontological (fossil-based) than we have generally been doing in this class; don’t focus on the details of fossil taxa. Focus on: Abstract, Introduction, Phylogenetic patterns versus functional scenarios in the origin of birds and flight; Fossil feathers; Skin, Feathers, and Functional Speculation; Conclusions. Read in less detail: Hypotheses on the Origin of Birds (understand the big hypotheses, but pay less attention to details). Also, in Fossil feathers, don’t focus on the fossil taxa and their putative relationships.)