THK AXXALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SEVENTH SKRIES.J 



" per litora spargite museum, 



ITaiaKtes, et circiun vitreos considiU' fontes : 

 Pollice virjjineo teneros hie carpite flores: 

 Floribus et pictura, divae. replete canirttrunj. 

 At T08, o Nvmpha Craterides, ite sub undai ; 

 Ite, recurvato variata corallia truiico 

 Vellite muscosis e rupibus, et mihi conchaa 

 Ferte, Dee peliigi, et pingui conchylia sueeo. 



N.ParthaniiGiannettusi, Koi. 



No. 31. JULY 1900. 



T. — On some Fi.ih-retmiin.t from the Parana Formation, 

 Argentine Republic. Hj A. Smith WoODWAKD, LL.I)., 

 F.L.S. 



[Plate I.] 



There is an interesting marine deposit exj)03ed in the b.mlcs 

 of the River Parana near the city of Parana, in the province 

 of Entrerios, Argentine Republic. It has been known since 

 tlie explorations of d'Orbigny arid Darwin, and is of special 

 importance not only as containing the remains of land- 

 mammals itself, but also as being intimately associated with 

 other deposits which yield abundant evidence of extinct 

 mammalian faunas. Since marine fossils are of much more 

 value in determining the age of a formation than the remains 

 of land animals, this small Parana deposit may therefore be 

 expected to afford a clue to the geological age of some of the 

 Soutii-Anierican terrestrial faunas, concerning which various 

 opinions have been expressed. Its interest in this connexion 

 has already been recognized by several observers, including 



Ann. <X- Mu(j. A". Hist. S.-r. 7. Vol. vi. I 



