A TABEE 
Showing the Stratigraphical Distribution of the Genera of 
British Fossil Veriebrata. 
[In this table some minor horizons have been separately entered on 
account of the special character of their Vertebrate Fauna. A 
few generic names are placed in square brackets in lists from beds 
from which they are not recorded in the Catalogue ; most of these 
occurrences being hitherto unpublished. | 
UPPER SILURIAN. 
PiscEs.—Auchenaspis, Cephalaspis, Cyathaspis, Eukeraspis, Onchus, 
Scaphaspis, Sphagodus, Thelodus. 
LOWER OLD RED SANDSTONE (PASSAGE BEDS). 
PiscEs.—Auchenaspis, Cephalaspis, Onchus. 
LOWER OLD RED SANDSTONE. 
PiscEs.—Acanthodes, Byssacanthus, Cephalaspis, Cephalopterus, 
Cheiracanthus, Cheirolepis, Climatius, Coccosteus, (?) Cyathaspis, 
Didymaspis, Diplacanthus, Diplopterus, Dipterus, Glyptolepis, 
Gyroptychius, Holaspis, Homosteus, Ischnacanthus, Kallostrakon, 
Microbrachius, Onchus, Onychodus, Osteolepis, Parexus, Pteraspis, 
Pterichthys, Scaphaspis, Thursius, Tristicopterus. 
UPPER OLD RED SANDSTONE. 
Pisces.—Actinolepis, Asterolepis, Bothriolepis, Conchodus, Cosma- 
canthus, Cricodus, Dendrodus, Glyptolemus, Glyptopomus, Holo- 
ptychius, Phaneropleuron, Phyllolepis. 
DEVONIAN. 
PiscEs.—Phyllolepis, Steganodictyum. 
LOWER CARBONIFEROUS. 
Pisces.—Acanthodes, Acondylacanthus, Acrolepis, Aganacanthus, 
Archichthys, Asteroptychius, Callopristodus, Canobius, Chalaza- 
canthus, Cheirodopsis, Cheirodus, Chomatodus, Chondrenchelys, 
Cladodus, Cochliodus, Ccelacanthus, Colonodus, Copodus, Cosma- 
canthus, Cosmoptychius, Cryphiolepis, Ctenacanthus, Ctenodus, 
Ctenoptychius, Cycloptychius, Cynopodius, Cyrtonodus, Deltodus, 
Deltoptychius, Dicentrodus, Diclitodus, Dicrenodus, Diplacodus, 
Diplodus, Dipriacanthus, Echinodus, Elonichthys, Erismacanthus, 
Euctenius, Eurynotus, Fissodus, Ganopristodus, Glossodus, Glypha- 
nodus, Gnathacanthus, Gomphacanthus, Gonatodus, Gyracanthus, 
Harpacanthus, Helodus, Holurus, Homacanthus, Isodus, Janassa, 
Lispacanthus, Megalichthys, Mesolophodus, Nematoptychius, Ora- 
canthus, Orodus, Osteoplax, Petalodus, Petalorhynchus, Petrodus, 
Phanerosteon, Physonemus, Platysomus, Pleuracanthus, Pleuroplax, 
Poecilodus, Polyrhizodus, Pristodus, Psammodus Psammosteus, 
