70 Cincinnati Society of Natural History. 
Exposures of these beds are constantly becoming rarer. 
Formerly they were frequently exposed by the various small 
streams which found their way into the Ohio, but nearly all 
of these have been transformed into sewers, and their valleys 
taken for streets and building sites. The lowest shales, 
occurring in the river bank in the First Ward (Fulton and 
Columbia), and accessible only in low water of the Ohio 
River, have yielded a fauna limited to a few feet vertically. 
Among the forms obtained in these strata are Palezaster finet, 
Heterocrinus geniculatus, Merocrinus curtus, Plectambonites 
plicatellus, Ulrichia byrnesi, Elpe radiata, Triarthrus beckt, 
Dicranograptus ramosus, Diplograptus whitfieldi, Dendro- 
graptus tenuiramosus, Aspidopora areolata and Aspidopora 
newberryt. : 
The limestones in this division are usually harder and not 
so bluish as in the remaining Utica strata. The lowest shales 
are greenish-gray, drab, or yellowish, but soon give way to 
shales of various shades of blue and gray. 
The following list gives the fossils mainly restricted to this 
division, so far as known. A complete list will include those 
in the list on pages 68 and 69. 
SPONGLA. 
Lepidolites dickhauti Ulrich. 
CGRLENTERATA. 
Dendrograptus tenuiramosus Dicranograptus ramosus Hall. 
Walcott. Diplograptus whitfieldi Hall. 
ECHINODERMATA. 
Glyptocrinus pattersoni Miller. Palzeaster finei Ulrich. 
Heterocrinus exilis Hall. Teeniaster fimbriatus (Ulrich). 
= geniculatus Ulrich. ss flexuosus (Miller and 
Merocrinus curtus Ulrich. Dyer). 
BRYOZOA, 
Amplexopora petasiformis (Nich- Atactopora hirsuta Ulrich. 
olson). Atactoporella newportensisUlrich. 
Amplexopora petasiformis-welchi typicalis Ulrich. 
(James). Callopora onealli (James). 
Arthropora sp. Ceramoporella granulosa Ulrich, 
Aspidopora areolata Ulrich. variety. 
‘s newberryi(Nicholson). Crepipora solida (Ulrich). 
fs sp. e venusta (Ulrich). 
22 
