

to surprising, if not ridieulou:-i, conolusions. An e:^ample in 

 point is furnished 'by the " _ ! iniopc ie , of which '" n -secies 

 are present in the fauna. Ac-eordirig to availabl: ■ the 



group as a v;hole is characteristic of deeper water and 5^et 

 several 3'-)eGies occur in Eocene beds of the CTiilf Ooost that 

 unGouhtedly v/ere deposited in very shall-: ^^r. The failure 



of the gem^ to appear in the coiitinental Oligocene and later 

 Tertiary faunas has been ^-:"-i:'e- by appealin .allow- 



ncs..: of the water, but it would not be safe on this baais alone 

 to conclude that the 3o~den v/aters vrere of considerable depth. 

 The fauna " ° 'sentiall^ a .i'lallow water-faib.a. All 

 of the recent species at the present time occur in water of 

 ;-'light depth and them have been recorded in the inter- 



tidal zone, btit th^.. :lc. , ^,^ e:rtendc'- \ to consider- 



ably deeper v;ater. The presence of apparently deeper v;.- ter 

 elements, such a;- ■ .^ 3at?iyarGs: . _ be the result of 



the action of currents or other extra-ll-i'tal factor,.. Since 

 but a single v ^ :?indaria is yjresent it may be doi7hte' 



whether the form is indigeno'^is. Until the se'^iments are studied 

 s'r^ '-^'.e evidence of of^-- :■ lOiipu of ur^v;.iiii_:iiib con,_ Idered , it 

 is uiiv'ise to attempt to even roughly aoproxlmate the depth of 

 the water, but it may be ':he de-nth -^.i'-'' 



not exceed 30 or 40 fatho..!,. t<^__ -. .; ~-^ -, - __-_■■..-.-„ ,. 



of the sediments were deposited in water th: ^ considerably 



