1880.] 



NATURAL SCIENCES OF PHILADELPHIA. 

 SECTION ON BASHIA CREEK. 



367 



(Tuomey : First Biennial Report, p. 145.) 

 Note.— Beds 5 and 6 do not properly belong to the section, but "repre- 

 sent beds seen on another part of the stream below the preceding." (Loc. 

 cit. p. 146.) 



The fossils from Wood's Bluff, some 15 miles W. of Choctaw 

 Corner, were obtained by Dr. Smith from a bed of indurated 

 jrreen sand rising about 10-15 feet above water line, which bed may 

 possibly represent the lowermost portion of bed No. 2 of the 

 Bashia- section. Some support is given to this view by the cir- 

 cumstance that at this point— Wood's Bluff — the basal lignite 

 (which in the above named section has a thickness of G feet) has 

 disappeared, and more especiall}' (at least, as showing it to possess 

 a distinctive character) by the general fades of the representative 

 molluscous fauna. Although there exists a close similarity be- 

 tween the general assemblage of its fossils and those of the two 

 *' Branches " of Bashia Creek, yet the numljer of peculiar forms is 

 considerably greater, and consequently the aggregate i)ossesses a 

 much more decided iudividualitj' than obtains with either of the de- 

 posits in question. Moreover, I am informed b}' Dr. Smith that 

 the fossil fauna of Knight's and Cave Branches corresponds most 

 closely with that of btid No. 4 ' of the Wood's Bluff section, an 

 aluminous deposit about :21-26 feet above water le^-el, and con- 

 taining species of Denfalium, TornateUa^ Solarium, Turritella, 

 and Boi^lellaria identical with forms from the two first named 

 localities. The disappearance of tlie basal lignites at Wood's 



^ Section as yet unpublished, but communicated by letter to the author. 



