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  ^ 
  

  

  TRANSLATIONS 
  AND 
  NOTICES 
  

  

  OF 
  

  

  GEOLOGICAL 
  MEMOIRS. 
  

  

  Geological 
  and 
  Pal^iontological 
  Notices 
  on 
  the 
  Alps 
  of 
  the 
  Pays 
  

   be 
  Vaud 
  and 
  the 
  surrounding 
  Districts. 
  By 
  E. 
  Rekevier, 
  Pro- 
  

   fessor 
  of 
  Geology, 
  Lausanne. 
  

  

  [Notices 
  geologiques 
  et 
  paleontologiques 
  sur 
  les 
  Alpes 
  Vaudoises 
  et 
  les 
  regions 
  

   environnantes, 
  par 
  E. 
  Renevier, 
  Professeur 
  de 
  Geologie 
  a 
  Y 
  Academie 
  de 
  Lau- 
  

   sanne. 
  I. 
  Infralias. 
  Tire 
  de 
  Bulletin 
  de 
  la 
  Societe 
  Yaudoise 
  des 
  Sciences 
  

   Naturelles, 
  tome 
  viii. 
  p. 
  39. 
  Lausanne, 
  1864.] 
  

  

  The 
  object 
  of 
  this 
  memoir 
  by 
  M. 
  Renevier 
  is 
  to 
  describe 
  the 
  true 
  

   position 
  of 
  certain 
  beds 
  near 
  the 
  eastern 
  extremity 
  of 
  the 
  Lake 
  of 
  

   Geneva, 
  the 
  fossils 
  of 
  which 
  have 
  been 
  observed 
  since 
  1854, 
  and 
  

   which 
  have 
  been 
  placed 
  between 
  the 
  Triassic 
  and 
  Liassic 
  formations. 
  

   Some 
  of 
  these 
  have 
  already 
  been 
  identified 
  with 
  the 
  Rhsetic 
  beds, 
  

   while 
  others 
  range 
  upwards 
  into 
  the 
  zone 
  of 
  Ammonites 
  planorbis 
  

   and 
  the 
  Lower 
  Lias 
  beds 
  of 
  Hettange 
  ; 
  but 
  the 
  fossils 
  of 
  the 
  sepa- 
  

   rate 
  beds 
  have 
  not 
  yet 
  been 
  sufficiently 
  distinguished. 
  

  

  After 
  describing 
  the 
  successive 
  discoveries 
  of 
  various 
  geological 
  

   inquirers, 
  M. 
  Renevier 
  then 
  states 
  — 
  " 
  In 
  1863 
  I 
  again 
  explored 
  

   the 
  above-mentioned 
  districts, 
  and 
  was 
  fortunate 
  enough 
  to 
  discover 
  

   other 
  localities 
  in 
  the 
  neighbourhood 
  of 
  Villeneuve, 
  which 
  afforded 
  

   me 
  both 
  new 
  characteristic 
  fossils 
  and 
  valuable 
  stratigraphical 
  details. 
  

   Below 
  the 
  Commun 
  des 
  Chainees, 
  on 
  the 
  right 
  bank 
  of 
  the 
  Tiniere, 
  

   I 
  found 
  two 
  deposits 
  containing 
  beds 
  of 
  Avicula 
  contorta 
  ; 
  and 
  in 
  the 
  

   ravine 
  of 
  the 
  Pissot, 
  but 
  higher 
  up 
  than 
  the 
  spot 
  discovered 
  by 
  M. 
  

   Chausson, 
  I 
  found 
  a 
  collection 
  of 
  fossils 
  entirely 
  analogous 
  to 
  those 
  

   of 
  Taulan, 
  Luan, 
  and 
  Douvaz. 
  

  

  " 
  The 
  stratigraphical 
  position 
  of 
  this 
  last 
  formation 
  being 
  evidently 
  

   superior 
  to 
  the 
  beds 
  with 
  Avicula 
  contorta 
  at 
  Pissot, 
  I 
  became 
  con- 
  

   vinced 
  of 
  what 
  I 
  had 
  already 
  suspected 
  the 
  previous 
  year, 
  namely, 
  

   that 
  the 
  fossils 
  which 
  I 
  had 
  been 
  working 
  at 
  did 
  not 
  all 
  belong 
  to 
  

   the 
  same 
  geological 
  level, 
  but 
  that 
  they 
  should 
  be 
  referred 
  to 
  two 
  

   fossiliferous 
  zones, 
  closely 
  connected, 
  but 
  yet 
  characteristically 
  dis- 
  

   tinct. 
  The 
  upper 
  zone, 
  shown 
  at 
  'Taulan, 
  Luan, 
  Douvaz, 
  and 
  the 
  

   upper 
  Pissot, 
  corresponds 
  with 
  the 
  true 
  Infralias 
  of 
  Valogne, 
  Het- 
  

   tange, 
  the 
  Lyonnais, 
  &c, 
  and 
  with 
  the 
  beds 
  with 
  Ammonites 
  angu- 
  

   latus 
  and 
  A. 
  planorbis 
  of 
  Wurtemberg. 
  The 
  lower 
  zone, 
  which 
  

   occurs 
  at 
  Taulan, 
  Luan, 
  the 
  Chainees, 
  and 
  the 
  lower 
  Pissot, 
  is 
  the 
  

   true 
  zone 
  with 
  Avicula 
  contorta 
  of 
  the 
  Alps, 
  parallel 
  to 
  the 
  bone- 
  

   bed 
  of 
  England 
  and 
  Wurtemberg, 
  for 
  which 
  M. 
  Giimbel 
  has 
  pro- 
  

   posed 
  the 
  name 
  of 
  RhcetiscJie 
  Stufe 
  (Etage 
  Rhsetien), 
  subsequently 
  

   adopted 
  by 
  English 
  geologists." 
  

  

  The 
  author 
  then 
  describes 
  the 
  stratigraphical 
  features 
  of 
  the 
  va- 
  

   rious 
  localities 
  in 
  which 
  these 
  two 
  fossiliferous 
  zones, 
  forming 
  as 
  it 
  

  

  VOL. 
  XX. 
  PART 
  II. 
  E 
  

  

  