49O HISTORY OF GEOLOGY AND PALEONTOLOGY. 



in the Lunz facies. Stur, who had identified the Halobia 

 Lommeli horizons in the lower Austrian Alps conformably 

 below the Lunz series, concluded that the Zlambach strata and 

 the salt deposits were in the main the equivalents of the Lunz 

 series (ante, p. 483). But in this case, as part of the Lunz 

 series had been proved palaeontologically to be the equivalent 

 of the more prevalent " Raibl " facies, Stur concluded that 

 part of the Hallstatt limestone must be the equivalent of the 

 " Main Dolomite " facies of Upper Keuper in North Tyrol and 

 Bavaria. This was a much higher stratigraphical position than 

 Mojsisovics assigned to the Hallstatt limestone in his publica- 

 tions of 1866 and 1869 (see Table on p. 485). 



In 1871, in a work entitled The Geology of Styria, Stur gave 

 an exposition of the Triassic succession in that area which had 

 the advantage of being founded wholly upon his own personal 

 field observations, and which likewise carried out the com- 

 parative aspect of Alpine and extra-Alpine deposits so strongly 

 recommended by Giimbel. The Upper Trias or " Keuper " 

 divisions were thus determined by Stur for the Styrian district, 

 and compared with other Alpine facies : 



IN STYRIA. 



Opponitz Dolomite. Main Dolomite and 



Upper Hallstatt 

 limestone. 



f Torer or " Upper 

 Raibl" horizons. 



Heiligkreuz strata near 

 St. Cassian. 



Red Schlern strata at 

 the Seis Alpe. 



Lower Hallstatt lime- 

 stone near Ausee. 



Lunz and Reingraben 

 strata; Partnach, Car- 

 dita, and Bleiberg 

 strata ; the middle 

 " Raibl " horizons 

 with Myophoria Ke- 

 fersteini, and the St. 

 Cassian strata. 



Widely-distributed oc- 

 currence of Wengen 

 shales with Ha'.obia 

 Lommeli. 



Upper Keuper. Opponitz Limestone 



Lower Keuper. 



" Lettenkohlen " Group 

 and Salt Deposits. 



