> as lemmas

1964 BioScience Sept. 31/3 Evolution..swept up simple molecules into more complex ones, thence into molecular complexes, proto-life, [etc.].

1977 A. Hallam Planet Earth 236/1 The earlier microscopic fossils may well also represent the remains of blue-green algae, but it is perfectly probable that they represent some form of primitive protolife.

1994 K. Kelly Out of Control xix. 369 Synthetically reproduced protolife and artificial evolution in computers have already unearthed a growing body of nontrivial surprises.