AVES. 



Haley ornis - - toliapicus - L. Eocene. 

 Lithornis - - vulturensis - L. Eocene. 

 Palaeornis - - Cliftii - L. Cretaceous. Wealden. 



Athyris 

 Atrypa 



BRACHIOPODA. 



plaiiosulcata 



desquamata 



hemispherica 



marginalis 



reticularis 



Carboniferous. 



L. M. and U. Devonian. 



Silurian. Llandovery. 



Llandovery to De- 



vonian. 



Dev onian. 



M. Permian. Mag. L. 

 11 



