356 
HUBBARD AND CRONEIS 
Spirifer increbescens 
Eumetria marcyi 
Zaphrentis spinulosa 
Fenestella sp. 
Archimedes sp. 
Derbya crassa 
Allorisma maxvillensis 
Bellerophon sublaevis 
Spirifer keokuk 
Dielasma turgida 
Seminula subquadrata 
Seminula trinuclea 
Productus fasciculus 
Productus cestriensis 
Pentremites godoni 
Pentremites pyriformis 
Professor Prosser and Dr. R. B. Rome collected a very similar 
fauna from the Greenbrier of Maryland for the state survey. 
The Maxville limestone fauna of Ohio is also very similar and 
the Greenbrier has been regarded as the Appalachian equivalent 
of the Maxville by Morse-® and others. This is no doubt in part 
true, but the Greenbrier seems to include more than the Maxville. 
The Greenbrier as Divided by Bassler-^ 
Probably the best and most detailed section of the Greenbrier 
limestone to be observed in Virginia may be seen along the 
Norfolk and Western Railroad near Lurich, in Giles County. 
Here all of the beds are fairly 'well exposed and the section may 
be considered as typical for the region. For this reason all of the 
variations in the strata at this point were noted. The section 
is, in ascending order, as follows : 
Geologic Section, Greenbrier Limestone 
Vicinity of Lurich, Virginia 
7. Thin-bedded blue limestone with beds of blue and yellow 
shale. 400 feet. 
6. Compact blue to black argillaceous limestone in thin 
flaggy layers, much fractured. 170 feet. 
5. Compact blue-black, fine-grained limestone alternating 
with coarsely crystalline fossiliferous strata, with blue limestone 
and yellow shales in upper part. 150 feet. 
4. Drab and blue shales. - 80 feet. 
3. Massive blue and argillaceous limestone with a few shaly 
beds in the upper part. No chert observed. 90 feet. 
2. Drab and yellow calcareous shales with occasional bands of * 
compact blue limestone. 180 feet. 
Morse, W. C., “The Maxville Limestone,’’ Bull. 13, Series No. 4, Ohio 
Geol. Survey, pp. 109-111. 
^ Bassler, R. S., “The Cement Resources of Virginia,” pp. 275. 
