Eldredge and Gould's 1972 punctuated-equilibria essay cites Mayr 1963, not Mayr 1954, for the 'genetic revolution' mechanism, and names no Mayr 1954 work in its body text

Reading the full 1972 essay "Punctuated equilibria: an alternative to phyletic gradualism" against its primary text confirms that Niles punctuated equilibrium rests explicitly on Ernst Mayr's speciation model — but every in-text citation to Mayr names a work other than his 1954 chapter. Where the essay invokes the "genetic revolution," the term Mayr had introduced in 1954, it cites the later book: "only here are selective pressures strong enough and the inertia of large numbers sufficiently reduced to produce the 'genetic revolution' (Mayr, 1963, p. 533) that overcomes homeostasis" (p. 114). Gene flow "counteract[s] local ecotypic adaptation by breaking up well-integrated gene complexes" is likewise cited to Mayr, 1963, p. 178 (p. 112), and the biospecies concept underlying the whole argument is credited to Mayr 1963 (revised 1970) as "the indispensable source" (p. 92).

Mayr is elsewhere cited to 1942 (Systematics and the Origin of Species) and to what OCR renders as "Mayr (1959)" — both distinct from 1954. No in-text citation to Mayr's 1954 "Change of genetic environment and evolution" appears anywhere in the essay body. The reprint carries no trailing reference list, so a formal bibliography entry could not be checked (see watch flag).

This sharpens, rather than overturns, the vault's derivation framing (claim-punctuated-equilibrium-derives-from-mayr-peripatric-speciation): the mechanism is demonstrably Mayr's and Eldredge and Gould say so, but the specific link to the 1954 paper — the paper that independently predicted the fossil-record consequence (claim-mayr-1954-predicted-fossil-record-gaps-from-peripatric-speciation) — is the vault's own synthesis via Wikipedia, not a citation Eldredge and Gould themselves make. The concrete terms they lean on ("genetic revolution," homeostasis) trace, in their own text, to Mayr 1963.