Chen, J. & Williams, G.C. (2015) X-ray Microanalysis and the Chemical Elemental Composition of Gorgonian and Pennatulacean Axial Structures (Anthozoa, Octocorallia). Proceedings of the California Academy of Sciences. 62(12): 399-416.
Parham, J.F., Papenfuss, T.J., Buskirk, J.R., Parra-Olea, G., Chen, J. & Simison, W.B. (2015) Trachemys ornata or not ornata: reassessment of a taxonomic revision for Mexican Trachemys. Proceedings of the California Academy of Sciences. 62(12): 359-367.
Williams, G.C. & Chen, J. (2014) Illustrated key to the shallow-water gorgonians and pennatulaceans of the Verde Island Passage, northern Philippines, including synopses of the taxa and a glossary of terms (Cnidaria: Anthozoa: Octocorallia). Special Publication, The Coral Triangle - The Hearst Philippine Biodiversity Expedition 2011. California Academy of Sciences.
Williams, G.C. & Chen, J. (2012) Resurrection of the octocorallian genus Antillogorgia for Caribbean species previously assigned to Pseudopterogorgia, and a taxonomic assessment of these genera with Leptogorgia (Cnidaria, Anthozoa, Gorgoniidae). Zootaxa. 3505: 39–52.
Parham, J.F., Papenfuss, T.J., Buskirk, J.R., Parra-Olea, G., Chen, J. & Simison, W.B. (2015) Trachemys ornata or not ornata: reassessment of a taxonomic revision for Mexican Trachemys. Proceedings of the California Academy of Sciences. 62(12): 359-367.
Williams, G.C. & Chen, J. (2014) Illustrated key to the shallow-water gorgonians and pennatulaceans of the Verde Island Passage, northern Philippines, including synopses of the taxa and a glossary of terms (Cnidaria: Anthozoa: Octocorallia). Special Publication, The Coral Triangle - The Hearst Philippine Biodiversity Expedition 2011. California Academy of Sciences.
Williams, G.C. & Chen, J. (2012) Resurrection of the octocorallian genus Antillogorgia for Caribbean species previously assigned to Pseudopterogorgia, and a taxonomic assessment of these genera with Leptogorgia (Cnidaria, Anthozoa, Gorgoniidae). Zootaxa. 3505: 39–52.