original description(ofPsammopemma calcareum Haeckel, 1889)Haeckel, E. (1889). Report on the deep-sea Keratosa collected by H.M.S. Challenger during the years 1873-76. <em>Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology.</em> 32 (part 82): 1-92, pls 1-8., available online athttps://www.biodiversitylibrary.org/page/46217206[details]
context source (Deepsea)Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online athttp://www.iobis.org/[details]
basis of recordTendal, O.; van der Land, J. (2001). Xenophyophora, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 78-79 (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality