Yol.  49.] 
ST.  CASSIAN  STRATA  IN  SOUTHERN  TYROL. 
41 
Conformably  succeeding  these  beds  on  the  Kuvolau  slope  are 
thickly-bedded  dolomite,  then  marls  with  interstratified  dolomitic 
flags,  and  the  same  breccia  as  that  which  occurs  on  Sett  Sass. 
On  the  Pomedes  and  Wajorera  slopes  the  Baibl  Beds  are  un¬ 
usually  well  exposed.  In  the  higher  horizon  of  thinly-bedded  smooth 
dolomite  and  marls  some  beds  are  filled  with  casts  of  Megcilodon ,  sp. 
(Loretz  had  previously  found  these) ;  in  the  middle  horizon  gypsum 
occurs,  interbedded  with  dolomite -layers ;  and  the  thicker  banks 
of  dolomite  are  remarkable  for  the  very  intimate  combination 
they  show  of  marls,  dolomitic  sand,  and  breccia.1  The  fine  inter¬ 
layering  of  these  different  materials  forms  a  dolomite-rock  differing 
essentially  from  the  drusy,  crystalline  Schlern  Dolomite. 
The  fossiliferous  beds  are  reddish  breccias  with  small  fragments 
of  silica,  brownish  sandstones  with  stems  of  plants,  hard  white 
sandstone,  dark  limestones  with  Myophoria  Kefersteini  and  Megal- 
oclon  sp.,  and  greyish  limestone  with  cidarid  spines.  These  beds 
rest  on  a  dolomite-rock  50-60  feet  thick,  and  at  other  parts  of  the 
slope  they  succeed  a  bed  of  Cipit  Limestone  and  St.  Cassian 
marls.  The  difficulties  presented  by  the  succession  here  are  much 
increased  by  an  extensive  slip,  between  Majorera  .and  Bomerlo, 
of  the  Baibl  Beds  and  of  the  dolomite-layer  beneath  upon  the 
St.  Cassian  marls,  as  also  by  the  growth  of  trees  and  underwood 
upon  the  lower  slopes. 
IY.  Platz  Wiese,  Diirrenstein.  ( Compare  fig.  14,  p.  42.) 
This  broad  meadow-land  at  the  height  of  6000  feet  has  for  its 
soil  the  Baibl  marls.  A  section  drawn  west  and  east  from  the 
Wallsche  Boden  and  Knoll  Kopf  to  the  Diirrenstein  gives,  in  con¬ 
formable  succession : — 
Dachstein  Dolomite. 
Baibl  strata,  , 
160-200  feet  thick.  , 
(  Bauchwacke,  brownish- grey,  very  porous,  sometimes  still 
retaining  enclosures  of  gypsum. 
Bituminous  limestone  and  shales  with  layers  of  gypsum. 
Dolomitic  limestone  and  breccia. 
Yariegated  dolomitic  marls,  intercalated  with  thin  beds  of 
dolomite  and  dolomitic  flags.  Gypsum  layers  occur 
frequently. 
^  Thicker  beds  of  dolomite,  of  shaly  uneven  surface. 
Dolomitic  strata, 
probably  of  Baibl  •{ 
age. 
f  Thickly- bedded  dolomite,  showing  on  close  examination 
fine  layers  of  red  or  greenish  marl,  between  layers  of 
dolomitic  sandy  breccia. 
Dolomite  with  smooth  compact  structure ;  a  bed  of 
j  lithodendroid  coral-limestone  occurs  in  this  dolomite 
1  just  below  the  fort. 
Drusy,  crystalline  Schlern  Dolomite. 
1  Giimbel,  ‘Das  Mendel-  u.  Schlern-Gebirge,’  Sitzungsb.  d.  k.  k.  Akad.  d. 
Wissensch.  Wien,  1873,  p.  14.  Giimbel  observed  occasionally  also  in  Schlern 
Dolomite  ‘  diinne,  oft  nur  haut-ahnliche  Zwisckenlagen  von  Merge!.’ 
