286 CAMBRIAN BEACHIOPODA. 



396q [Schmidt, 1888, p. 24], (For stratigraphic position and association, see p. 144.) Lower Cambrian: Upper 

 boundary of the blue clay with the Fucoid sandstone (the " Mickwitzia conglomerate" [Schmidt, 1888, 

 p. 24]), at Reval, Government of Esthonia, Russia. 

 Mickwitzia monilifera. 



396r [Schmidt, 1888, p. 24]. (For stratigraphic position and association, see p. 144.) Lower Cambrian: In the 

 "upper strata" at Streitberg, near Beval, Government of Esthonia, Russia. 

 Mickwitzia monilifera. 



396s [Schmidt, 1888, p. 24]. (For stratigraphic position and association, see p. 144.) Lower Cambrian: In loose 

 blocks on Kosch Brook near Likkat, near Reval, Government of Esthonia, Russia. 

 Mickwitzia monilifera. 



396t [Schmidt, 1888, p. 24]. (For stratigraphic position and association, see p. 144.) Lower Cambrian: At the 

 sandstone capes of Ziegelskoppel, Kakkomaggi (also Bocca al Mare), near Reval, Government of Esthonia, 

 Russia. 

 Mickwitzia monilifera. 



396u [Schmidt, 1888, p. 24]. (For stratigraphic position and association, see p. 144.) Lower Cambrian: In loose 

 blocks on the lower course of Jaggowal Brook, about 20 miles (32.2 km.) east-southeast of Reval, Govern- 

 ment of Esthonia, Russia. 



Mickwitzia monilifera. 



Traces of Olenellus. 



396v [Schmidt, 1888, p. 24, and U. S. National Museum]. (For stratigraphic position and association, see p. 144.) 

 Lower Cambrian: At the upper boundary of a dolomitic sandstone with which the Olenellus stratum 

 begins, below the cement factory on Kunda Brook, Government of Esthonia, Russia. 



Mickwitzia monilifera. 



Traces of Olenellus. 



396w [Schmidt, 1888, p. 24]. (For stratigraphic position and association, see p. 144.) Lower Cambrian: In the 

 glauconitic sands above the main mass of the clay, below the cement factory on Kunda Brook, Govern- 

 ment of Esthonia, Bussia. 

 Mickwitzia monilifera. 



396x [Eichwald, 1843, p. 146]. (For stratigraphic position and association, see p. 143.) Passage beds between 

 the Upper Cambrian and the Ordovician: In the chlorite-bearing sands in the limestone beds at Baltisch- 

 port, about 30 miles (48 km.) west of Beval, Government of Esthonia, Russia. 

 Obolus (Acritis) antiquissimus. 

 Obolus (Mickwitzella) siluricus. 



396y [Eichwald, 1843, p. 147]. (For stratigraphic position and association, see p. 143.) Passage beds between 

 the Upper Cambrian and the Ordovician: In the chlorite-bearing sands in the limestone beds at Reval, 

 Government of Esthonia, Russia. 



Obolus (Acritis) antiquissimus. 



Obolus (Mickwitzella) siluricus.' 



396z [Kutorga, 1848, p. 283]. (See 336g.) (For stratigraphic position and association, see p. 143.) Passage beds 

 between the Upper Cambrian and the Ordovician: Limestone in the vicinity of Zarskoe Selo, Government 

 of St. Petersburg, Russia. 

 Obolus (Acritis) antiquissimus. 



Localities C1-C75, Carnegie Institution of Washington Expedition to China."- 



CI (just above C4, same section; just below C2, same section; about 75 feet below C62, which occurs at a locality 

 3 miles east; about same horizon as ClO, different section; about 150 feet below C12, same section). 

 Middle Cambrian: Lower shale member of the Kiulung group [Blackwelder, 1907a, pp. 37 and 40 (part of 

 the third list of fossils), and fig. 10 (bed 4), p. 38], 2 miles (3.2 km.) south of Yenchuang, Sintai district, 

 Shantung, China (Eliot Blackwelder, 11-27-1903). 



*Obolus minimus. 

 Obolus (Westonia) blackwelderi. 

 Acrotreta pacifica. 

 Acrotreta shantungensis?. 

 Protospongia chloris Walcott. 

 Platyceras chronus Walcott. 

 Hyolithes cybele Walcott. 

 Agnostus chinensis Dames. 



Dorypyge richthofeni Dames. 

 Inouyia divi (Walcott). 

 Anomocarella albion Walcott. 

 Anomocarella chinensis Walcott. 

 Lisania agonius (Walcott). 

 Dolichometopus alceste Walcott?. 

 Dolichometopus decerto Walcott. 

 Dolichometopus deois Walcott. 



' See the explanatory paragraphs on pp. 160-161. 



