“The smaller the mammal, the more it is confined to smaller geographic areas. A small mammal is also more susceptible to subtle changes in climate and environment. …On average, the absence or presence of smaller species provides more precise clues to past conditions in an area than does the information gained from study of the bone assemblages of the larger animals.”
What the Bones Tell Us (1997)
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Jeffrey H. Schwartz 25
American anthropologist 1948Related quotes
Source: Building Entopia - 1975, Chapter 10, The neighborhood, p. 134

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As quoted by David Milner, "Haruo Nakajima Interview" http://www.davmil.org/www.kaijuconversations.com/nakajima.htm, Kaiju Conversations (March 1995)

Gregory S. Paul (1988) Predatory Dinosaurs of the World, Simon and Schuster, p. 53
Predatory Dinosaurs of the World

Man and Dolphin (1961), p.190-191; as quoted in The Sounding of the Whale: Science and Cetaceans in the Twentieth Century (2012), by D. Graham Burnett, p.578-579