BioStor
 | XLVI.—General results of Microscopic Inquiries into the Minute Structure of the Skeletons of Mollusca, Crustacea and Echinodermata William B Carpenter (1843) Annals And Magazine of Natural History 12: 377-390 |
 | A list of the Mesozoic and Cenozoic types in the collections of the U. S. National Museum John Belknap Marcou (1885) Proceedings of The United States National Museum 8: 290-344 |