Echinoid: Eucidaris tribuloides (PRI 13410)

Description

Modern specimen of the echinoid *Eucidaris tribuloides* from near Key West, Florida (PRI 13410). Specimen is from the collections of the [Paleontological Research Institution](http://www.priweb.org), Ithaca, New York. Specimen is approximately 7.5 cm in diameter. Model by Emily Hauf.