LOCALITIES. 285 



396c (references follow species). (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite sandstone" at the mouth of Fahna Brook, east of Fall, 

 about 15 niiles (24 km.) west of Reval, Government of Esthonia, Russia. 



Obolus (Mickwitzella) silm-icus [Mickwitz, 1S96, p. 198]. 



Lingulella (Leptembolon) linguteformis [Mickwitz, 1896, p. 203], 



396d. (references follow species). (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite sandstone" at Domglint in Reval, Government of 

 Esthonia, Russia. 



Obolus (Acritis) antiquissimus (U. S. National Museum). 



Obolus (Acritis) antiquissimus ventrosus [?]. 



Lingulella (Leptembolon) lingulseformis [Mickwitz, 1896, p. 203]. 



396e [Mickwitz, 1896, p. 198]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite sandstone " in the eastern part of the east Baltic region. 

 Government of Esthonia, Russia. 

 Obolus (Mickwitzella) siluricus. 



396f [Mickwitz, 1896, p. 204]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite sandstone" in the western part of the east Baltic region, 

 Russia. 

 Lingulella (Leptembolon) lingulseformis. 



396g [Eichwald, 1843, p. 143]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: In the upper limestone at Reval, Government of Esthonia, Russia. 

 *Obolus (Acritis) antiquissimus. 



3961i [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite limestone" at Tischer, 10 miles (16 km.) west of Reval, 

 Government of Esthonia, Russia. 

 Obolus (Acritis) antiquissimus. 



3961 [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite limestone" at Fall, 15 miles (24 km.) west of Reval, 

 Government of Esthonia, Russia. 

 Obolus (Acritis") antiquissimus. 



396j [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite limestone" at Nommeweske, near Palms, Government 

 of Esthonia, Russia. 

 Obolus (Acritis) antiquissimus. 



396k [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite limestone" at Iswos on the Wolchow, Government of 

 St. Petersburg, Russia. 

 Obolus (Acritis) antiquissimus, 



3961 [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between the 

 Upper Cambrian and the Ordovician: "Glauconite limestone" at Pulkowa, near St. Petersbiurg, Russia. 

 Obolus (Acritis) antiquissimus. 



396m. [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between 

 the Upper Cambrian and the Ordovician: "Lower lenticular layer" of the "glauconite limestone" at 

 Saggad, east of Palms, Government of Esthonia, Russia. 

 Obolus (Acritis) antiquissimus. 



396n [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between 

 the Upper Cambrian and the Ordovician: White limestone between the "glauconite limestone" and the 

 sandy representative of the "Vaginatum limestone" at Leppiko, near Leetz, on the eastern side of the 

 Baltischport peninsula, about 25 miles (40.3 km.) west of Reval, Government of Esthonia, Russia. 

 Obolus (Acritis) antiquissimus. 



3960 [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between 

 the Upper Cambrian and the Ordovician: "Glauconite limestone" in the entire western part of the east 

 Baltic region. Government of Esthonia, Russia. 

 Obolus (Acritis) antiquissimus. 



396p [Mickwitz, 1896, p. 213]. (For stratigraphic position and association, see p. 143.) Passage beds between 

 the Upper Cambrian and the Ordovician: Strata between the "lower lenticular layer" and the " Vaginatum 

 limestone" proper at Nommeweske, near Palms, Government of Esthonia, Russia. 

 Obolus (Acritis) antiquissimus. 



