ZOROASTERIDAE SLADEN 1889

Mah, Christopher, 2007, Phylogeny of the Zoroasteridae (Zorocallina; Forcipulatida): evolutionary events in deep-sea Asteroidea displaying Palaeozoic features, Zoological Journal of the Linnean Society 150 (1), pp. 177-210 : 189

FAMILY ZOROASTERIDAE SLADEN 1889

Zoroasteridae-Sladen 1889: 416; Alcock 1893b: 173; Perrier 1894: 112; Fisher (1906): 1102; H.L. Clark 1916: 68; Fisher 1919a: 470; Fisher 1919b: 387; Fisher 1928: 32; H. L. Clark 1920: 94; Macan 1938: 414; Hayashi 1943: 161; Fell 1958: 18; Bernasconi 1964: 266; Spencer & Wright 1966: U74; Downey 1970: 1; Downey 1973: 95; Moyana & Larrain 1976: 104; McKnight 1977: 159; Maluf 1988: 124; Clark & Downey 1992: 401; Rowe & Gates 1995: 115; Liao & Clark 1995: 140; Clark & Mah 2001: 230.

Diagnosis: Discs small with elongate, tapering arms. Single row of marginal plates. Papular pores in longitudinal and transverse rows. Disc and arm plates reticulate or imbricate in arrangement. Smaller secondary spines cover most plates. Actinolateral spines (i.e. below marginal plate series) with larger primary spines appressed or facing abactinally. Superambulacral plates present. Pedicellariae straight (absent in Pholidaster ). Adambulacrals alternately carinate. Tube feet in four rows becoming two rows distally.