Elena N Temereva, Eugeni B Tsitrin 2015, 'Modern Data on the Innervation of the Lophophore in Lingula anatina (Brachiopoda)Support the Monophyly of the Lophophorates.', PLoS ONEhttp://europepmc.org/articles/PMC4406759?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)

Wood Timothy S, Schwaha Thomas 2011, 'Organogenesis during budding and lophophoral morphology of Hislopia malayensisAnnandale, 1916 (Bryozoa, Ctenostomata)', BMC Developmental Biologyhttp://www.biomedcentral.com/1471-213X/11/23. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)

Lucília S. Miranda, Allen G. Collins, Yayoi M. Hirano, Claudia E. Mills, Antonio C.Marques 2016, 'Comparative internal anatomy of Staurozoa (Cnidaria), with functional and evolutionaryinferences', PeerJhttps://peerj.com/articles/2594.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)