One of the most common echinoderms during the Paleozoic were Crinoids which lived directly on...

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One of the most common echinoderms during the Paleozoic were Crinoids which lived directly on the seafloor i e epifaunal Usually fossils only preserve parts of Crinoid bodies From the different body parts of Pentrimites the calyx or head the stalk and the base reconstruct in a drawing the complete Crinoid Also draw a top view of the calyx identifying the mark with five fold symmetry Crinoids still exist today but are not very abundant use the figure in the book provided as a guide for your reconstruction but don t just copy use the fossil specimen themselves in the reconstruction

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