152 



OHIO FOSSILS 



Tasmanites 75 



Teeth, of pelecypods 37 



Tentaculites scalariformis *89 



Tetradium approximaUmi 45 



Tetxapoda 42 



Thallophyta 29 



Thecia minor 59 



Theromorphs 43 



Thorax, of trilobites 39 



Time Table 8 



Tornoceras *90 



Torynifer pseudolineata *99 



Trachypora elegantula 76, *77 



Tremanotus alpheus *68 



Trematis mille punctata 48 



Trematopora singularis *61 



Trepospira rotalia *87 



Trilobites 39 



Devonian : 91 



Mississippian 104 



Odovician 53 



Pennsylvanian 119 



Silurian 70 



Trimerella *63 



Trimerus delphinocephalus *71 



Trochelminthes 36 



Trochonema fatuum *68 



Tropidodiscus cyrtolites *103 



Trypaulites calypso *92 



Turbo *88 



Turbonopsis shumardi *88 



Tylorthoceras ohioense *90 



Zaphrentis corniculum *78 



Zaphrentis digoniata 59, *60 



Zonitoides *132 



Zoogenetes harpa *132 



Zygospira cincinnatiensis 50 



Zygospira modesta *49 



U 



Umbilicus, of gastropods 



Uncinulus stricklandi 



V 



Vallonia 



Valvata lewisi 



Valvata sincera 



Valvata tricarinata 



Vertebrates, Pennsylvanian .... 



Vertigo 



Vitrina . 



W 



Wellerella osagensis 



Whitella umbonata 



Whitfieldella cylindrica 



Worthenia beedei 



37 

 65 



*132 

 129 

 129 



*129 

 119 



*133 



*132 



*111 



52 



*63 



*117 



