We provide clarification of the nature of the junction between cup and arms in Titanocrinus sumralli Guensberg and Sprinkle 2003, accompanied by an emended reconstruction. This morphological feature of so basal a species informs further phylogenetic studies.
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Journal of Paleontology
Vol. 84 • No. 3
May 2010
Vol. 84 • No. 3
May 2010
crinoid
primitive
protocrinoid
restoration