Ashlock, Peter D. (mars 1971). «Monophyly and Associated Terms». Systematic Zoology. 20 (1): 63. doi:10.2307/2412223.
Kevin de Queiroz (1994). «Replacement of an essentialistic perspective on taxonomic definitions as exemplified by the definition of "Mammalia"». Syst. Biol. 43 (4): 497–510. JSTOR2413548. doi:10.2307/2413548.
jstor.org
Kevin de Queiroz (1994). «Replacement of an essentialistic perspective on taxonomic definitions as exemplified by the definition of "Mammalia"». Syst. Biol. 43 (4): 497–510. JSTOR2413548. doi:10.2307/2413548.
nih.gov
ncbi.nlm.nih.gov
Anderson, J.S. (2002): Use of well-known names in phylogenetic nomenclature: a reply to Laurin. Systematic Biology no 51 (5): side 822–827. doi:10.1080/10635150290102447. PMID 12396594