Marley, N.J., Mcinnes, S.J. and Sands, C.J. 2011. Phylum Tardigrada: A re-evaluation of the Parachela. Zootaxa. 2819, 1 (Apr. 2011), 51–64. DOI:https://doi.org/10.11646/zootaxa.2819.1.2.