nT ie ote | 
ON CHARACTERISTIC FOSSILS. 
SILURIAN. 
Valentian (Lower). 
Climacograptus normalis, ; 
Diplograptus (Orthograptus) vesiculosus : 
Pentamerus undatus ; 
Stricklandinia lens 
Valentian (Upper). 
Monograptus gregarius 
a turriculatus 
* sedgwicki 
Rastrites peregrinus 
Pentamerus oblongus 
Meristina crassa 
Salopian (Wenlock Shale). 
Monograptus priodon 
Cyrtograptus murchisoni 
Cardiola interrupta 
Orthis elegantula 
* biloba 
Orthoceras annulatum 
Salopian (Wenlock Limestone). 
Favosites gothlandica 
Heliolites megastoma 
Halysites catenularia 
Acervularia luxurians 
Omphyma subturbinatum 
Crotalocrinus sp. 
Atrypa reticularis . 
Strophonella euglypha 
Pentamerus galeatus 
Leptzna rhomboidalis 
Horiostoma rugosa. ; 
Trimerus delphinocephalus 
Calymene blumenbachi . 
Phacops caudatus . 
Salopian (Lower Ludlow). 
Monograptus colonus 
Gomphoceras ellipticum . 
Acidaspis coronata 
Salopian (Aymestry Limestone). 
Conchidium knighti 
Dayia navicula 
Downtonian. 
Lingula cornea 
Chonetes striatella . 
Camarotoechia nucula 
Pterinea danbyi 
Orthoceras bullatum 
Cornulites serpularius 
Thelodus sp. 
Graptoloidea 
Brachiopoda 
” 
Graptoloidea 
a” 
Brachiopoda 
” 
Graptoloidea 
Pelecypoda 
Brachiopoda 
Cephalopoda 
Anthozoa 
33 
> 
” 
2° 
Crinoidea 
Brachiopoda 
2» 
Gastropoda 
Trilobita 
” 
” 
Graptoloidea 
Cephalopoda 
Trilobita 
Brachiopoda 
? 
Brachiopoda 
” 
Pelecypoda 
Cephalopoda 
Vermes 
299 
Pisces (Ostracodermi) 
