 A related notion is suggested by Peter Godfrey-Smith, who defines scaffolded reproducers as “entities which get reproduced as part of the reproduction of some larger unit (a simple reproducer), or that are reproduced by some other entity” (Godfrey-Smith 2009: 88). This notion is more restricted than Wimsatt’s and Griesemer’s appeal to scaffolding, as it only refers to scaffolding of reproduction. Godfrey-Smith classifies genes as scaffolded reproducers since they rely on cellular machinery for their reproduction (p. 130).