Description lateral view and interambulacral plate detail from
Cotteau, G. H. & Triger, J. 1857-1869. Échinides du département de la Sarthe, considérés au point de vue zoologique et stratigraphique. J.-B. Baillière et Fils, Paris, xv+457 pp.Author Kroh, AndreasJPG file - 75.32 kB - 600 x 499 pixelsadded on 2010-12-29206 views This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License