Notholca is a genus of rotifers known from Holocene lake deposits as well as the present day.[1]
^Swadling, K. M.; Dartnall, H. J. G.; Gibson, J. A. E.; Saulnier-Talbot, É.; Vincent, W. F. (2001). "Fossil Rotifers and the Early Colonization of an Antarctic Lake". Quaternary Research. 55 (3): 380. Bibcode:2001QuRes..55..380S. doi:10.1006/qres.2001.2222. S2CID 129513915.