454 



MESOZOIC TIME REPTILIAN AGE. 



(d.) Cephalopoda. — Tetmbrctnchs. — Fig. 700, Ammonites Ifodotiuunn, from the 

 Lower Lias; figs. 701, 701 a, A. bisulcatus, from the Lower Lias; A. margarita- 

 tus, Middle Lias. Dibrancks. — Figs. 702, 703, different views of one of the forms 



Figs. 695-699 



Brachiopods and Conchifers.— Figs. 695, 696, Lepta?na Moorei (X 7); 696 a, same, natural 

 size; 697, Spirifer Walcotti; 698, Ctenoides (Plagiostoma) gigantea (X Vz) \ 699, Gryphgea 

 arcuata (X %)• 



of a complete osselet of a Belemnite ; fig. 704, B. paxillosus, Middle Lias ; fig. 

 704 a, section of same near the extremity; fig. 705, B. pistilliformis. — Also spe- 



Figs. 700 



Cephalopods.— Fig. 700, Ammonites Nodotianns; 701, 701 a, A. bisulcatus. 



cies of the Calamary family, or Teuthids (having the osselet membranous), of the 

 genera Beloteuthis, Geoteuthis, etc. : the fossils are the osselet, ink-bag (fig. 706), 

 and horny claws or hooks from the arms. 



