BRITISH FOSSIL VERTEBRATA. xxxi 



Psephodus, Rhadinichthys, Rhamphodus, Rhizodus, Sandalodus, 

 Sphenacanthus, Stichacanthus, Streblodus, Strepsodus, Tarrasius, 

 Tomodus, Tristychius, Uronemus, Venustodus, Wardichthys, 

 Xystrodus. 

 Amphibia. — Loxomma, Pholidogaster, and Genus non det. {v. Miscel- 

 laneous Amphibia). 



UPPER CARBONIFEROUS. 



Pisces. — Acanthodes, Acanthodopsis, Archichthys, Calloprisfodus, 

 Cheirodus, Coelacanthus, Ctenodus, Ctenoptychius, Cycloptychius, 

 Uiplodus, Elonichthys, Euctenius, Gonatodus, Gyracanthus, He- 

 lodus, Hoplonchus, Hybodopsis, Janassa, Lepracanthus, Megal- 

 ichthys, Mesolepis, Ostracacanthus, Petalodus, Platysomus, Pleura- 

 canthus, Pleuroplax, Rhadinichthys, Rhizodopsis, Sphenacanthus, 

 Stemmatodus, Strepsodus. 



Amphibia. — Anthracosaurus, Anthrakerpeton, Batrachiderpeton, Doli- 

 chosoina, Erpetocephalus, Ichthyerpeton, Keraterpeton, Lept- 

 erpeton, Loxomma, Megalerpeton, Ophiderpeton, Pholiderpeton, 

 Pteroplax, Urocordylus. 



PERMIAN. 



PlSCES. — Acentrophorus, Acrolepis, Coelacanthus, Dorypterus, Globu- 



lodus, Janassa, Palaeoniscus, Platysomus, Pygopterus, Wodnika. 



Amphibia. — Dasyceps, Lepidotosaurus. 



Reptilia. — Protorosaurus. 



TRIAS. 



Pisces. — Acrodus, Ceratodus, Dictyopyge, Diplodus, Dipteronotus, 



Semionotus. 

 Amphibia. — Dasygnathus, Diadetognathus, Labyrinthodon, Masto- 



donsaurus, Rhombopholis. 

 Reptilia. — Cladyodon, (?) Dicynodon, Hyperodapedon, Palasosaurus, 



Rhynchosaurus, Stagonolepis, Telerpeton, Thecodontosaurus, 



(?) Zanclodon. 

 ' RH.ETIC. 



Pisces. — Acrodus, Ceratodus, Gyrolepis, Hybodus, Legnonotus, Ne- 

 macanthus, Palaeospinax, Pholidophorus, Sargodon, Saurichthys, 

 [Semionotus]. 



Amphibia. — (?) Metopias. 



Reptilia. — (?) Ichthyosaurus, Pakeosaurus, Plesiosaurus, Psepho- 

 derma, Rysosteus, (?) Zanclodon. 



Mammalia. — Microlestes. 



LIAS. 



PlSCKS. — Acrodus, Arthropterus, Eelonorhynchus, Browneichthys, 

 Centrolepis, Chondrosteus, Cosmolepis, Cyclarthrus, Dapedius, 

 Endactis, Eugnathus, Gyrosteus, Harpactira, Holophagus, Hy- 

 bodus, Isocolum, Lepidotus, Leptolepis, Mesodon, Myriacanthus, 

 Xothosomus, Osteorhachis, Oxygnathus, Pachycormus, Palaeo- 

 spinax, Pholidophorus, Platysiagum, Ptycholepis, Squaloraja, 

 Tetragonolepis, Thrissonotus. 



Reptilia. — Dimorphodon,Eretmosaurus, Ichthyosaurus, Pelagosaurus, 

 Plesiosaurus, (?) Scaphognathus, Scelidosaurus, Steneosaurus, 

 Teleosaurus, Thaumatosaurus, (?) Zanclodon. 



