2019

Caron, J.-B. and Cheung, B., 2019. Amiskwia is a large Cambrian gnathiferan with complex gnathostomulid-like jaws. Communications Biology, 2, 164.

2006

Sorenson, M. V., Sterrer, W. and Giribet, G., 2006. Gnathostomulid phylogeny inferred from a combined approach of four molecular loci and morphology. Cladistics, 22, 32-58.
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2002

Sorenson, M. V., 2002. Phylogeny and jaw evolution in Gnathostomulida, with a cladistic analysis of the genera. Zoologica Scripta, 31, 461-480.