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His theory of peripatric speciation ( a more precise form of allopatric speciation which he advanced ) , based on his work on birds , is still considered a leading mode of speciation , and was the theoretical underpinning for the theory of punctuated equilibrium , proposed by Niles Eldredge and Stephen Jay Gould .
 Niles Eldredge, Stephen Jay Gould
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Answer:
 Niles Eldredge, Stephen Jay Gould