(Bulletin ... middle page 44)

TWO HOURS AMONG THE FOSSILS OF FRANKLIN COUNTY, INDIANA.


By D. R. Moore.


Two hours may be to the enthusiastic geologist an aggravating limit; but in such a field for discovery and study as Franklin County presents, it is sufficient time to collect enough to occupy him in identification two hours multiplied by three. In pursuit of his favorite study, whether he climb the steep hillsides or wander beside the numerous watercourses, fossilized objects lie around him in plentiful abundance.
It was among those objects, that, during a two hour's walk, the genera and species represented in the following list, were found. Though observations in Lithology were varied and interesting, space will not


Two Hours Among the Fossils of Franklin County. 45

admit of notes thereon. It may be added, that, while some representatives of the fauna of the Upper Silurian were taken, the list is confined to representatives only of the Lower Silurian. What is herein presented gives but the most imperfect survey of what is, in fact, one of the richest fields in the State of Indiana.

BRACHIOPODA.
GENUS STROPHOMENA.
Strophomena alternata, Conrad.
planumbona, Hall.
rhomboidalis, Wilck.

GENUS ORTHIS.
Orthis subquadrata, Hall.
occidentalis, Hall.
biforata, var. lynx, Schol.
insculpta, Hall.
emacerata, Hall.

GENUS RYNCHONELLA.
Rynchonella capax, Conrad.

GENUS ZYGOSPIRA.
Zygospira modesta, Say.

GASTEROPODA.
GENUS CYCLOMENA.
Cyclomena bilix, Conrad.

GENUS CYRTOLITES.
Cyrtolites inornatus, Hall.

GENUS PLEUROTOMARIA.
Pleurotomaria, --.

CRUSTACEA.
GENUS CALYMENE.
Calymene senaria, Conrad.

FOSSIL CORALS.
GENUS CHÆTETES.
Chætetes Dalei, E. and H.
sub-pulchellus, Nich.

GENUS COLUMNOPORA.
Columnopora cribiformis, Nich.

GENUS STREPTELASMA.
Streptelasma corniculum, Hall.


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