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Nielsenicrinus
Taxonomy
Nielsenicrinus was named by Rasmussen (1961) [Sepkoski's age data: K Haut-l T Ol-u Sepkoski's reference number: 864]. Its type is Pentacrinus obsoletus.
It was assigned to Isocrinidae by Rasmussen (1961), Eagle (1993); to Isocrinida by Sepkoski (2002); and to Cainocrinidae by Oji et al. (1996), Jagt (1999), Hess and Messing (2011).
It was assigned to Isocrinidae by Rasmussen (1961), Eagle (1993); to Isocrinida by Sepkoski (2002); and to Cainocrinidae by Oji et al. (1996), Jagt (1999), Hess and Messing (2011).