TERTIARY FORMATIONS OF OLTENIA 693 



ing over a large surface in the Olt region, and also as lumps or patches 

 on the salt formation of that region, and as a belt along the skirt of 

 the mountains, where it can be seen in the valley wall of the rivers 

 which have eroded the upper strata. Its occurrence around Sacel, 

 with characters of great interest, has been mentioned above. 



In several places organic remains have been found, and from the 

 fossils in my collection Professor Laskareff has been able to distin- 

 guish three horizons, as in the south Russian Sarmatic: 



1. The lower horizon begins as a continuation of the marly facies 

 of the salt formation; there are: bluish or grayish marls and clays, 

 banded or compact, forming thick beds with small intercalations of 

 sandstones. In the highest beds sandstone with sand and calcareous 

 banks, and a few conglomerates, prevail. Here and there (Ramnic- 

 Valcea-Pausesti, Suseni) there are bands of yellowish oolitic limestone. 

 In the Olanesti valley, Sacel, and Voitesti we find round sandstone 

 concretions, as described in the Sarmatian of Moldavia, Bessarabia, 

 etc. 



a) The lowest layers in which I have found fossils are a thin 

 sandstone stratum intercalated between the green marls from the 

 northeast of Ramnicu Valcea, and overlying the levigated palla on 

 the Oltu bank. 



Cardium lilhopodolicum Dub. Hydrobia Frauenjeldi Horn 



Trochus sp. etc., etc. 



In the green, banded marls which contain Litholhamnium nodules 

 and veins, and which overlie the salt marls from Dobriceni in the 

 Drogu ravine, and underlie the sand and sandstone banks from 

 Smeuretu-Stoenesti, there occurs Syndesmya, cf. apelina Ren. 



At Titireciu, in a ravine cutting the folded salt marls and sand 

 which have a well-marked salt efflorescence, and which lie immedi- 

 ately above a bed of levigated palla (Fig. 8), I found in an inter- 

 calation of sand: Ervilia cf. pusilla Phil., Conger la cf. Sanbergeri 

 Andr., etc. 



Ervilia pusilla denotes the lowest Sarmatian strata, the transition 

 from Tortonian to Sarmatian — a stratum described exhaustively by 

 Professor Laskareff at Buglowo 1 (southern Russia). Accordingly, 



1 W. Laskareff, "Die Fauna der Buglowka Schichten in Volhynien," Memoires du 

 comite geologique, Nouv. Serie 5, 1903. Perhaps the limestone with Tapes vitaliana 

 from Lacul Buha belongs also to this horizon. 



