BALTIC REGION 587 



Orthoceras limestone, comprising — 



(d) Upper gray or Chiron limestone with Illwnus chiron 

 Hm., Ogygia dilatata Briinn var. sarsi A., Ancistro- 

 ceras undulatum Boll., and Discoceras teres Eichw. . 10 m. 

 (c) Upper Red, including — 



(c) 2 Platyurus limestone with Asaphus platyurus A. 



and Orthoceras tortum and 

 (c)j Gig as limestone with Megalaspis gig as? 1 



Total c t and c 2 24 m.+ 



(o) Loiver gray or Asaphus limestone with numerous fos- 

 sils, including Cyrtometopus clavifrons Dalm., Pha- 

 cops sclerops Dm., Asaphus raniceps var. maxima 

 Br., Megalaspis heros Dm., i)f. rotundatus A., If. e#- 

 planata A., Illwnus esmarJci Schloth, Ampyx nasutus 

 Dm., Endoceras wahlenbergi Foord, Orthoceras Mn- 

 nekullense Foord, Estonioceras proteus His., Bath- 

 moceras linnarssoni A., Gonionema bicarinatum His., 

 Raphistoma gradatum Koken, Orthis sp. and Bphcero- 

 nis pomum Gyllenh., the latter in rock-forming quan- 

 tity 6 m. 



(a) Lower red or Limbata limestone with Megalaspis lim- 



bata S. & B. and Nileus armadillo Dm 12 m. 



Total Orthoceras limestone 52 m.-f 



Lower Didymograptus shale, light greenish gray shale with 

 Phyllograptus densus Tqt, Didymograptus extensus Hall, 

 Tetragraptus quadribrachiatus Hall, and T. fruticosus Hall.. 10m. 



Planilimbata limestone, gray limestone with Megalaspis plani- 

 limbata, Eorthis Christiana:, etcetera 0.5 m. 



Geratopyge limestone, upper part glauconitic limestone, with 

 Geratopyge forficula Sars., Euloma omatum A., Cyrtometopus 

 primigeus A., Niobe insignis Lns., Symphysurus angustatus 

 Boeck, Nileus limbata Brogg, and Eorthis christianiw (Kj.), 

 lower part glauconitic shale with Lycophoria lecvis Stolley. .. 2 m. 



Total shales and limestones 12 . 5 m. 



Hiatus? with Dictyonema shales wanting — possibly replaced by 

 Lower Ceratopyge limestone. 



Cambric. 



Upper Cambric alum shale containing in the upper beds Pel- 

 tura scarabioides Wbg. and Sphwropthalmus alatus Boeck; 

 a phosphate conglomerate with Orthis lenticularis and fetid 

 limestone layers (1.6 meters thick), some beds of which are 



21 This species has not been reported from the Kinnekulle, but occurs elsewhere In 

 Wester-Gotland. 



XLIII — Bull. Geol. Soc. Am., Vol. 27, 1915 



