1. Bambach, K.R. 1977. Species richness in marine benthic habitats through the Phanerozoic.—Paleobiology3: 152–167, 5 Abb., Jacksonville, N. Y.
2. Barnard, P.D.W. 1973. Mesozoic Floras.—[In:] Hughes, N.F. (ed.) Organisms and continents through time. Methods of assessing relationships between past and present biologic distributions and the position of continents.—Special Papers in Palaeontology12: 175.–187, 4 Abb., London.
3. Biese, W. 1935. Crinoidea jurassica 1.—[In:] Quenstedt, W. (Hrsg.) Fossilium Catalogus 1: Animalia. Pars70: 240 S., Junk, Gravenhage.
4. Craw, R. C. 1983. Panbiogeography and vicariance cladistics: Are they truly different? —Systematic Zoology32 (4): 431–438, 6 Abb., Lawrence, Ka.
5. Gabriel, K.R. &Sokal, R.R. 1969. A new statistical approach to geographic variation analysis.— Systematic Zoology18: 259–278, 5 Abb., 2 Tab., Lawrence, Ka.