1868.] STTDD SPEETON CLAY. 



Fossils from the Lower Neocomian of Speeton. 



235 



Teeth of Lamna 



Vertebrae of fish 



Astacodes faleifer, Phil, sp 



Belemnites j aculum, Pkill 



laterahs, Phil 



Ammonites Speetonensis, Y. ^ B. 



, var. venustus, Phil. 



, var. concinnus, PhU 



, other varieties 



Noricus, Schloth. (varieties) 



, var. ? furcillatus, Bean, MS 



Astierianus, D'Orb. (varieties) 



multiplicatus, i?d?n 



, var.? hystrix, Phil. 



Nisus.D'O* 



rotula, Sow 



trisuleosus(?j, Phil. 



marginatus, Phil 



nucleus, Phil 



. sp 



Ancyloceras (Crioceras) Duvalii, LeveiUi 



(Crioceras) Emericii, Leveille 



(Crioceras) Puzosianum, D' Orb. ? 



(Hamites) raricostatum, Phil 



Cerithium aculeatum 



Trochus, sp 



Dentalium laevigatum, Bean, MS. 



Exogyra sinuata , Sow. (typical form) 



subplicata, Rom 



Couloni (E. subsinuata, ieyw.) 



, var. dorsata, Leym 



, var. falciformis, Goldf. 



, var. aquilina, Leym 



Ostrea, sp 



Pecten cinctus, Sow. (gigantic form) 



Nucula obtusa, Sow 



(Leda?) subrecurva, Phil. (N. scapha, If Orb.) .. 



Astarte laticosta, Desh 



Pholadomya, sp 



Thracia Phillipsii, Eom 



Pholas constricta, Phil , 



Teredo, sp , 



Terebratula depressa?. Lam , 



Rhynchonel la sulcata. Park , 



Serpula articulata 



Toxaster complanatus, Ag 



Pentacrinus, sp 



Wood 



Frond of Fern {Lonchopteris ?) 



.-^i 



r. 

 c. 

 r. 

 r. 

 r. 



C. 

 C. 



c. 



r. 

 R. 

 r. 

 r. 

 r. 

 r. 

 c. 

 r. 

 r. 

 r. 

 r. 

 r. 





c. 



c. 





r§ 



C. 

 C. 



c. 



r. 



E. 



Palaeontologically, this division is distinguished by the presence of 

 Ammonites Astierianus and its allies, though I believe rare specimena 



