1 (iO 



frequent occurrence in tlie formation, from wliich it may be inferred 

 that the lagoons between the coral-islands and reefs temporarily 

 emerged above the sea-level and were exposed lo the air. 



Similar relations prevailed in that part of South-Celebes, where 

 the fossil-fishes have been found. From personal experience I know 

 the limestones near the cascade of Bantimoeroeng not far from the 

 locality Patoenoeang Asoe E, and the numerous authors, who have 

 described other parts of South-West Celebes, all mention these 

 limestones, which often rise abruptly with steep walls from the 

 surrounding plains, presenting typical reefmasses of Tertiary age. 



Numerous foraminifera are found in these reefiocks; but also 

 corals and shells are found. Rocks of oolitic structure aie also 

 recorded. As well as the limestones, which contain the fossil fishes 

 and perhaps represent a lagoon-deposit, these oolitic limestones show 

 the characteristics of deposits in a sea with i-eefs and lagoons. 



Regarding the precise age of these rocks data have been published, 

 notably by Bucking ') and Verbeek ') and afterwards by 't Hoen '). 

 We now know that Eocene limestones with nummulites and dis- 

 cocyclines occur amongst these rocks, as well as Miocene limestones 

 with lepidocyclines. 



Up to now no account has been given of foraminiferal limestones 

 from the immediate surroundings of ihe locality where the fossil 

 fishes have been found, the nearest rocks that were examined are 

 those near the cascade of Bantimoeroeng, east of Maros, which 

 contain CyclocIyj)ens and AlveoUna. The age of these I'ocks may be 

 Upper-Eocene or Oligocene. We have stated alieady that with the Old- 

 Tertiary rocks also Oligo-Miocene limestones occur at various places. 



The age of the fossil-tishes cannot be etablished exactly, because 

 they show a slight relation only to the fauna of other regions. The 



Clupea {Sardinellii) is undoubtedly closely related to recent species, 

 the Lutjanus possibly so. This might induce us to decide on a recent 

 age of the deposits. But among the many herrings, for instance, from 

 the Tertiary of Europe and America, none are described as showing 

 a closer relationshi|) to Sardinella. Different climatic conditions may 

 have been of influence on the distribution of the fishes in Tertiary 



') H. Bucking. Beitiage zur Geologie Ton Celebes. Samml. d. geol. Reichsmus. 

 in Leiden. Ser. I. Bd. VU. I. 1902. p 118. 



') R. D. M. Verbeek. Moluklien Verslag. Jaaib. Mijnwezen 1908. Wetensch. 

 Ged. p. 52. 



^) G. W. A. P. 't Hoen. Verslag over de resultaten van geol. mijnbouwk. ver 

 kenningen en opsporingen in Zuidwest-Celebes. Jaarb Mijnwezen 1915. Verband 

 I. p. 244. 



