Charlesworth, D. (2006). "Population genetics: Using recombination to detect sexual reproduction: The contrasting cases of Placozoa and C. elegans". Heredity (Edinb.). 96 (5): 341–342. doi:10.1038/sj.hdy.6800809. PMID16552431. S2CID44333533.
Grasshoff, Manfred; Gudo, Michael (2002). "The origin of metazoa and the main evolutionary lineages of the animal Kingdom: The gallertoid hypothesis in the light of modern research". Senckenbergiana Lethaea. 82 (1). Springer Science and Business Media LLC: 295–314. doi:10.1007/bf03043790. ISSN0037-2110. S2CID84989130.
Layden, Michael J. (2018). "Cnidarian Zic genes". In Aruga, Jun (ed.). Zic Family: Evolution, development, and disease. Zic family in animal evolution and development. Advances in Experimental Medicine and Biology. Vol. 1046 (1st ed.). Singapore: Springer Nature Singapore (published 14 February 2018). pp. 27–39. doi:10.1007/978-981-10-7311-3_2. ISBN978-981-10-7310-6. ISSN0065-2598. PMID29442315.
Syed, Tareq; Schierwater, Bernd (June 2002). "The evolution of the placozoa: A new morphological model". Senckenbergiana Lethaea. 82 (1): 315–324. doi:10.1007/bf03043791. ISSN0037-2110. S2CID16870420.
Schuchert, Peter (1 March 1993). "Trichoplax adhaerens (phylum Placozoa) has cells that react with antibodies against the neuropeptide RFamide". Acta Zoologica. 74 (2): 115–117. doi:10.1111/j.1463-6395.1993.tb01227.x. ISSN1463-6395.
Charlesworth, D. (2006). "Population genetics: Using recombination to detect sexual reproduction: The contrasting cases of Placozoa and C. elegans". Heredity (Edinb.). 96 (5): 341–342. doi:10.1038/sj.hdy.6800809. PMID16552431. S2CID44333533.
Layden, Michael J. (2018). "Cnidarian Zic genes". In Aruga, Jun (ed.). Zic Family: Evolution, development, and disease. Zic family in animal evolution and development. Advances in Experimental Medicine and Biology. Vol. 1046 (1st ed.). Singapore: Springer Nature Singapore (published 14 February 2018). pp. 27–39. doi:10.1007/978-981-10-7311-3_2. ISBN978-981-10-7310-6. ISSN0065-2598. PMID29442315.
Charlesworth, D. (2006). "Population genetics: Using recombination to detect sexual reproduction: The contrasting cases of Placozoa and C. elegans". Heredity (Edinb.). 96 (5): 341–342. doi:10.1038/sj.hdy.6800809. PMID16552431. S2CID44333533.
Grasshoff, Manfred; Gudo, Michael (2002). "The origin of metazoa and the main evolutionary lineages of the animal Kingdom: The gallertoid hypothesis in the light of modern research". Senckenbergiana Lethaea. 82 (1). Springer Science and Business Media LLC: 295–314. doi:10.1007/bf03043790. ISSN0037-2110. S2CID84989130.
Syed, Tareq; Schierwater, Bernd (June 2002). "The evolution of the placozoa: A new morphological model". Senckenbergiana Lethaea. 82 (1): 315–324. doi:10.1007/bf03043791. ISSN0037-2110. S2CID16870420.
Grasshoff, Manfred; Gudo, Michael (2002). "The origin of metazoa and the main evolutionary lineages of the animal Kingdom: The gallertoid hypothesis in the light of modern research". Senckenbergiana Lethaea. 82 (1). Springer Science and Business Media LLC: 295–314. doi:10.1007/bf03043790. ISSN0037-2110. S2CID84989130.
Layden, Michael J. (2018). "Cnidarian Zic genes". In Aruga, Jun (ed.). Zic Family: Evolution, development, and disease. Zic family in animal evolution and development. Advances in Experimental Medicine and Biology. Vol. 1046 (1st ed.). Singapore: Springer Nature Singapore (published 14 February 2018). pp. 27–39. doi:10.1007/978-981-10-7311-3_2. ISBN978-981-10-7310-6. ISSN0065-2598. PMID29442315.
Syed, Tareq; Schierwater, Bernd (June 2002). "The evolution of the placozoa: A new morphological model". Senckenbergiana Lethaea. 82 (1): 315–324. doi:10.1007/bf03043791. ISSN0037-2110. S2CID16870420.
Schuchert, Peter (1 March 1993). "Trichoplax adhaerens (phylum Placozoa) has cells that react with antibodies against the neuropeptide RFamide". Acta Zoologica. 74 (2): 115–117. doi:10.1111/j.1463-6395.1993.tb01227.x. ISSN1463-6395.