Preliminary N otes on Cincinnatian and Lexington Fossils 31 1 
mens have been found near the base of the Liberty bed. John 
Misener found tv^o specimens at Richmond, Indiana; one in the 
Liberty bed; and the other in the upper part of the Whitev^ater 
bed. 
Tetradium minus, S afford. 
{Plate X, Figs. I, A. B.) 
This species is recognized readily by its small quadrangular 
corallites, breaking apart lengthwise so as to show an apparently 
fibrous structure. On close examination the presence of four 
septa, one attached near the middle line of each of the four wallsy 
may be noticed. Additional septa may exist but require the use 
of a magnifier for detection. 
Geological position. A species of Tetradium associated with 
the stromatoporoid usually called Labechia ohioensis occurs in 
the Fairmount bed on the Cumberland river, in Russell county, 
2 miles east of Rowena, Kentucky. Small specimens are found 20 
feet above river level, and larger specimens are found 35 feet above 
the river. The intervening rock contains Orthorhynchula linneyi. 
T etradium and Labechia may be traced up the river as far as the 
exposures a quarter of a mile below Belk island. T etradium 
minus occurs with the same association of fossils also in Maury 
county, Tennessee. 
In the lower part of the Waynesville bed it occurs atOwingsville 
and Wyoming east of the Cincinnati geanticline and north of 
Mount Washington and west of Fisherville west of the geanticline, 
all in Kentucky. In Clinton county, Ohio, it makes its appearance 
in the Orthoceras fosteri horizon bed, at the base of the middle or 
Clarksville division of the Waynesville bed. East of Pendleton, 
Kentucky, and at the mouth of Bull creek, Indiana, it is common 
at a horizon which appears to be the upper part of the Waynes- 
ville bed. At the base of the Liberty bed it is quite abundant at 
many localities west of the Cincinnati geanticline, in Kentucky. 
The most southern localities are in Marion county, Kentucky. 
Occasional specimens are found in Indiana. On the eastern side 
of the geanticline it is much less common, but occasional specimens 
are found in the base of the Liberty bed as far south as Concord, 
Kentucky. It is possible that the specimens found at the Merritt 
ferry opposite the mouth of Red river, and several miles west of 
