Description Male (A) and female (B) of a “marsupial” urchin, Temnotrema bigoti from the Pliocene of Vendée (after Dudicourt et al. 2005). The female is distinguished from the male by a brood pouch surrounding the apical system (center). Scale bar: 5 mm.
from David, B., Mooi, R., Néraudeau, D., Saucède, T. & Vilier, L. 2009. Évolution et radiations adaptatives chez les échinides. Comptes Rendus Palevol 8, 189–207.Author David et al. 2009JPG file - 92.85 kB - 800 x 419 pixels