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accessscience.com/content/Camerata/105200
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The lower portion of the dicyclic calyx is composed, from bottom to top, of infrabasal plates, basal plates, and radial plates, whereas the monocyclic calyx has ...
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www.geol.umd.edu/~tholtz/G331/lectures/331echin2.html
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Crinoids with no infrabasals are termed monocyclic, those with infrabsalas are ... Sometimes, the basal plates of the arms become incorporated inot the calyx as ...
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www.palaeontology.geo.uu.se/Kurser/Livets/echinodermata...
www.palaeontology.geo.uu.se/Kurser/Livets/echinodermata.pdf
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organized in stem, theka and brachia with ambulacra radials basals radials infrabasals monocyclic calyx dicyclic calyx basals radianal plate brachials brachia ...
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kuscholarworks.ku.edu/dspace/bitstream/1808/3719/3/pale...
kuscholarworks.ku.edu/dspace/bitstream/1808/3719/3/paleo.paper.067op.pdf
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The calyx plate structure cannot be determined, but the pattern of median-ray ridges suggests a dicyclic rather than a monocyclic base. Other- wise, since the ...
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journals.cambridge.org/article_S0016756800030478
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convergent on monocyclic inadunates. The prokopicrinid Nanicrinus (new) has a calyx consisting only of three basals (small basal in EA interrary) and five ...
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paleo.cortland.edu/tutorial/Echinoderms/echinoderms2.ht...
paleo.cortland.edu/tutorial/Echinoderms/echinoderms2.htm
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Most crinoids consist of a calyx with arms supported by a stem. ... They can be dicyclic (having infrabasals) as in the example or monocyclic (without infrabasals ) ...
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cronodon.com/BioTech/Crinoids.html
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The calyx contains 2-3 alternating pentamerous cycles of skeletal plates. Monocyclic forms have two cycles (with stem-angles at radii): the aboral basal plates ...
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www.jstor.org/stable/30054323
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Some of the detached arms indicate individuals whose total expanse of arms was nearly two inches. Calyx monocyclic, depressed. Basal plates 5, rhomboidal.
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repositories.lib.utexas.edu/bitstream/handle/2152/ETD-U...
repositories.lib.utexas.edu/bitstream/handle/2152/ETD-UT-2011-08-4243/WOMACK-THESIS.pdf?sequence=1
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Figure 1.8: Three differing ways of representing basic calyx structures in crinoids with monocyclic (A-C) and dicyclic (D-F) bases .........25. Figure 1.9: Orientation ...
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