1. Genesis 1:11–25
2. Monet de Lamarck J-B, Recherches sur l’organisation des corps vivants (Paris, 1802); Philosophie zoologique (Paris, 1809); Système analytique des connaissances positives de l’homme (Paris, 1820); Histoire naturelle des animaux sans vertèbres (Paris, 1822)
3. Darwin C (a) Beagle Diary (1831–1836); (b) On the origin of species by means of natural selection (1859), J. Murray, London; The descent of man and selection in relation to sex (1871), J. Murray, London
4. Darwin C, Wallace A (1958) Evolution by natural selection (a compilation by Sir Gavin de Beer, Cambridge U P)
5. Haeckel E: Generelle Morphologie der Organismen (1866), Berlin