﻿FR. VON HAUER ON SOME OUTLIERS OF THE ALPS. 89 



one specimen a very distinct transverse section of an Orbitulites. 

 Hence it would follow that these limestones and calcareous sandstones 

 belong to the same Orbitulite formation as the rocks of the Gahns- 

 bauer. What adds to this probability is that a fragment of a large 

 Ostrcea or Gryphcea has been obtained from the south-east declivity 

 of these hills, opposite Lorenzen, which well agrees with one of the 

 species before mentioned. On these hills also no distinct stratification 

 can be observed. 



Descending these hills by their western declivity, on reaching the 

 plain the Leitha conglomerate is met with, which continues all the 

 way to Neunkirchen. 



The same conglomerate occurs on the road from Neunkirchen to 

 Ragletz ; but as soon as the declivity of the range north-west of that 

 place is reached, the Orbitulite sandstone comes in, and higher up 

 gives place to the Alpine limestone. Still further north, to the south- 

 west of Hettmansdorff, there were found in Orbitulite sandstone well- 

 preserved specimens of crabs' claws, which exactly correspond with 

 the claws of Calianassa (Pagurus) Faujasii from St. Peter's Mountain 

 near Maestricht. Some specimens appear rather to resemble the C. an- 

 tiqua, Otto, from the extremities being somewhat straighter and longer, 

 but probably are mere varieties of the first-named species. With the 

 crabs' claws occur fragments of Inocerami, of Fchinoderms, and several 

 species of Terebratulce. 



The Orbitulite sandstone continues all the way from hence to 

 Strelzhof in a north-west direction, fringing the older mountains, and 

 only interrupted by the valleys which intersect it. Betwixt Willen- 

 dorf and Strelzhof it becomes more marly ; the Orbitulites are less 

 abundant, and are replaced by the fossils peculiar to Gosau. Pecten 

 striato-costatus, Fungice, and entire Inocerami were found in abun- 

 dance, and the claws of the Calianassa were also present. 



Finally, on the north-east side of the Kehnberg, the Orbitulite 

 sandstones attain a very considerable height, beyond which they were 

 not observed. 



Imperfect as the preceding observations are, and leading as they 

 do to the expectation that further inquiries in these interesting locali- 

 ties will bring to light many new facts, still some general conclusions 

 may be deduced from them : — 



1 . True Nummulites are not met with in the country examined 

 mixed with chalk fossils : they are absolutely wanting ; and all former 

 notices of their occurrence rest on the circumstance that they have 

 been confounded with Orbitulites [Orbitoides ?], fossils of a different 

 though similar structure. 



2. The rocks containing the Orbitulites [Orbitoides ?] are closely 

 connected with the Gosau beds, and in fact form their highest divi- 

 sion ; their fossils prove them to be on the same parallel with the 

 chalk tuff of St. Peter's Mountain near Maestricht, that is to say, the 

 highest member of the chalk formation. 



The so-called Nummulite beds of Neubergin Steiermark also belong 

 to the same Orbitulite formation. The lenticular bodies which they 

 contain are Orbitulites [Orbitoides ?], and the rest of their fossils are 



