122 



A.B. SMITH ETAL 



Fig. 31 Camera lucida drawings of plating in Cyclaster species. Apical surfaces; a, MGB 3755 1 C. heberti (Nickles, 1 892) from the Maastrichtian of the 

 coast west of Cabo Mayor (Santander, Cantabria): b, BMNH EE6206 C. gindrei (Seunes, 1888) from the Danian of Erice (Navarra); c, BMNH EE6208 

 C. aturicus (Seunes, 1888) from the Danian of Erice (Navarra). Scale bar = 5 mm. 



Fig. 32 Camera lucida drawings of plating in Cyclaster aturicus (Seunes. 

 b, oral surface. Scale bar = 5 mm. 



1888) from Astieso hill (Sarasate. Navarra), BMNH EE6068; a, apical surface; 



PLATE 9 



Figs 1-7 Hemiaster koninckanus d'Orbigny, 1855. Maastrichtian. 1-4, BMNH EE6238, Olazagutia Pass, Navarra; apical, oral, posterior and lateral views. 



x2. 5-7, BMNH EE6250, Santander, Cantabria; lateral, posterior and apical views, x2. 

 Figs 8-10 Hemiaster Stella (Morton, 1830), BMNH EE6234, Thanetian of Casas de Oraien, Navarra. Oral, apical and lateral views, xl. 

 Figs 11-14 Hemiaster prunella (Lamarck, 1816), MGB 37534, Maastrichtian of Santander, Cantabria. Apical, oral, posterior and lateral views, x2. 

 Figs 15-17 Cyclaster aturicus (Seunes, 1888), BMNH EE6068, Danian of Astieso, Navarra. Oral, apical and lateral views, xl. 

 Figs 18-21 Isaster aquitanicus (de Grateloup, 1836), BMNH EE6202, Thanetian of Casas de Oraien, Navarra. Posterior, lateral, oral and apical views, xl. 



