Kaminski, M. A.; Uchman, A.; Neagu, T.; Cetean, C. G. (2008). A larger agglutinated foraminifer originally described as a marine plant: the case of Arthrodendron Ulrich, 1904 (Foraminifera), its synonyms and homonyms. <em>Journal of Micropalaeontology.</em> 27: 103-110.

additional source

Ulrich, E. O. (1904). Fossils and age of the Yakutat Formation. Description of the collections made chiefly near Kadiak, Alaska. <em>In: Emerson, B.K.; Palache, C.; Dall, W.H.; Ulrich, E.O.; Knowlton, F.H. (eds). Alaska, Geology and Paleontology [Reprinted in 1910 as the Smithsonian Institution Harriman Alaska Series, vol. 4], pp. 125-146. Doubleday, Page & Co, New York.</em>

original description