f212, 213 



TROTTERS PLANTATION — RED BLUFF. 



135 



several led. 12 inches thick, of whitish rock, resembling the Zewjlodon 



matrix above, alternate with sandy glauconitic marls, similar in general to the 

 lower stratum at Garland's Creek, save in that the fossils are very poorly pre- 

 served. The same strata appear on the banks of the Chickasawhay River, not 

 Kir hence, containing vertebrae of Zeuglodon, Oslrca, Pebten nwperus, Bcutella — 

 generally much broken. 



212. On the highest points in the plantation, we observe fragments of a fine- 

 grained ferruginous rock containing a few white fossils, not represented in the 

 Jackson Group. In passing thence towards Red Bluff Station, on the M. & 0. 

 B. R., we remain on a level with this hilltop, and at several points, high pre- 

 cipitous bluffs come in close to the river. At a point about a mile from the Stn., 

 a bluff about 70 feet high, coming down in terraces to the waters edge, affords 

 the following profile : 



(Sec. 28.) 

 SECTION OF TERTIARY NEAR RED BLUFF STATION, WAYNE CO. 



Descending to the water level, we see, several hundred yards above, ledges 

 of whitish limestone dipping under this stratum and disappearing at the waters 

 edge. These ledges contain the same fossils as those seen on the banks of the 

 river near Trotter's plantation ; and this is the last characteristic outcrop of the 

 Jackson Group with which I am acquainted ; for whether or not the material 

 of stratum No. 1 of the preceding section properly belongs to this group, the 

 fossils thus far found have not enabled me to determine. It still continues to 

 be seen in the river bluffs for some distance, as we advance southward, but it 

 gradually sinks and brings the fossiliferous stratum No. 2 close to the 

 waters edge. 



213. Beds intervening between the JacTcson and Vicksburg Group. — The fos- 

 siliferous bed No. 2 of the preceding section seems to stand intermediate, by 

 position as well as by its fossils, between these two groups, though on the whole, 

 it seems in its fauna to approach more nearly the Vicksburg, than the Jackson 

 Group ; but while it has some fossils in common with each and both of the othe i 

 groups, it is no less remarkable for the predominance of peculiar species — a trai t 



