627 



Petra. 



Petrablattina meyeri, Scudder. Ditto p. 38. Trias, 



Petrablattina sepulta, Scudder. {Blattina sepulta^ Scud. 

 Proc. A. A. A. S. XXIV B, 1876, 110, 111, fig. 2.) Mem. Post. 

 S. N. H. Vol. 3, 1879, p. 125, 126, pi. 6, fig. 7. A cockroach from 

 Cossitt's coal pit, near Sydney, Cape Breton, N. S. Lower 

 Carboniferous. XIII? 



Petraia canadensis, Billings, Geology of Canada, 1863, 



page 308, fig. 311. 



From the Anticosti 



group ( Clinton for- 



^&M mation) in Eastern 



"^^'^'"^^Sri'i^^A v^anacla. V a. 



Ccinacict , 



Petraia calicula. Hall, Geol. Canada, 1863, page 308, fig. 

 •Petraia calicula (Hnji ) ^^^^ 310, from the Anticosti ( CUn- 



M^^m^ «^ ton) group of beds in the 

 Lower St. Lawrence. V a. 



Cana^ci 



Petraia (Streptelasma) corniculum. Hall. Pal. N. Y. Vol. 

 ^ hs 1, 1847, Trenton and Hudson river forma- 

 tions. Geol. Canada, 1863, page 156, fig. 

 1 18, Trenton formation, II c. 



Petraia fanningana, SafFord. Geol. Tenn., 1869, page 320, 



S ci^ ford . Gc^^Temxrn 



3.C. 



ndXtsiH) 



