ZONE OF AEGOCERAS ANGULATUM. 



29 



contributions to the history of the fauna of this zone in their valuable monograph, " Le 

 Lias inferieur de I'Est de la France."^ The researches of MM. Tate and Blake in the 

 Yorkshire Lias have added much to our knowledge of the British fossils of the Angulatum- 

 beds near Redcar, as the following list shows. 



Fossils from the Angulatum-Zone. 



Ichthyosaurus, vertebrae and teeth. 



Hybodus minor, Agass. 



Aegoceras angulatum, Schl. 



— Johnstoni, Sow. 



— Liasicum, (POrbigny. 



Discohelix striata, Piette. 



— semiclausa, Tate. 

 Pleurotomaria obesula, Tate. 



— similis. Sow. 



— tectaria, Tate. 

 Pitonellus sordidus, Tate. 

 Cryptsenia solarioides, Sow. 



— rotellseformis. Bunker. 



— nucleus, Terquem. 

 ■Cerithium gratum, Terquem. 



— Semele, d'Orhigny. 



— spiratum, Moore. 

 Dentalium Etalense, Terquem. 



Reptilia. 



Plesiosaurus, vertebrae and teeth. 



Pisces. 



Acrodus minimus, Agass. 



Cephalopoda. 



Aegoceras nanum, Mart. 

 Nautilus striatus, Sow. 

 Belemnites infundibulum, Phillips. 



Gasteropoda. 



Dentalium limatulum, Tate. 

 Actaeonina fragilis, Dunker. 

 Phasianella Morencyana, Piette. 

 Turbo solarium, Piette. 



— philemon, WOrbigny. 

 Littorina seraiornata, Mi'insi. 

 Eucyclus elegans, Miinster. 



— acuminatus, Chap. ^ Dewal. 

 Turritella Dunkeri, Terquem. 

 Chemnitzia transversa, Blake. 



— Berthandi, Dunker. 



— unicingulata, Terquem. 



— Etalensis, Piette. 



Ostrea ungula, Miinster. 



— semiplicata, Miinster. 

 Gryphaea arcuata, Lamarck. 

 Anemia alpina, Winkler. 



— striatula, Oppel. 

 Plicatula liasina, Terquem. 

 Pecten calvus, Goldfuss. 



— punctatissimus, Quenstedt. 



— textilis, Miinster. 



— te.xtorius, Schlotheim. 



Lamellibranchiata. 



Limea Blakeana, Tate. 

 Avicula Pattersoni, Tate. 

 Perna infraliasica, Quenstedt. 

 Pinna Hartmanni, Zieten. 

 Macrodon pullus, Terquem. 



— Hettangiensis, Terquem. 



— navicula, Terquem. 

 Leda Galathea, d'Orbigny. 



— Renevieri, Oppel. 



— texturata, Terquem. 



1 ' Memoires de la Societe G^ologique de France,' 2e s^rie, tome viii, p. i, 1865. 



