Data from: Spinosity, regeneration, and targeting among Paleozoic crinoids and their predators

Valerie J.P. Syverson, Carlton E. Brett, Forest J. Gahn & Tomasz K. Baumiller
Evolving interactions between predators and prey constitute one of the major adaptive influences on marine animals during the Paleozoic. Crinoids and fish constitute a predator-prey system that may date back to at least the Silurian, as suggested by patterns of crinoid regeneration and spinosity in concert with changes in the predatory fauna. Here we present data on the frequency of breakage and regeneration in the spines of the Middle Devonian camerate Gennaeocrinus and Late Paleozoic...
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