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			| 1456 | Australian Biological Resources Study 2000 Australian Faunal Directory. World Wide Web electronic publication. http://www.deh.gov.au/biodiversity/abrs/online-resources/fauna/index.html | 2000 | Ptychodera flava | --> | 
				
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			| 19 | Bisby, F.A., M.A. Ruggiero, K.L. Wilson, M. Cachuela-Palacio, S.W. Kimani, Y.R. Roskov, A. Soulier-Perkins and J. van Hertum 2005 Species 2000 & ITIS Catalogue of Life: 2005 Annual Checklist. CD-ROM; Species 2000: Reading, U.K. | 2005 | Ptychodera flava | --> | 
				
			| 93278 | Cameron, C.B. and M. Perez 2012 Spengelidae (Hemichordata: Enteropneusta) from the Eastern Pacific including a new species, Schizocardium californicum, from California. Zootaxa 3569:79-88. | 2012 | Ptychodera flava | 87 | 
				
			| 106682 | Duffy, C.A.J. and S.T. Ahyong 2015 Annotated checklist of the marine flora and fauna of the Kermadec Islands Marine Reserve and northern Kermadec Ridge, New Zealand. Bulletin of the Auckland Museum 20:19-124. | 2015 | Ptychodera flava | 105 | 
				
			| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Ptychodera flava | --> |