30 
Indiana and Ohio. Liberty formation, Tanners creek; base of the 
Saluda, Cedar creek near Versailles; and Lower Richmond (“Col. cribri- 
jormis ” Cumings 1908, 688, 701) ; lower part of the Saluda, Madison, Ind.; 
base of the Liberty bed, Clarksville, Ohio; Richmond, Ind.; Whitewater 
bed of same locality (Foerste 1909, 310; 1903, 345) ; lower part of Liberty 
bed, Madison, Ind., and Southwest Ohio {H. huronica Rominger 1876; 
“ C. cribriformis ” Nicholson 1874-5; See Foerste 1929, 143). 
Lake Huron Region. Manitoulin island and Drummond island in the 
Waynesville and the lower part of the Whitewater beds (Billings 1865, 
Rominger 1876, “ C. cribriformis ” Foerste 1916, 294), Big Hill beds, Michi- 
gan C. cribriformis ” Hussey 1926, 148) ; Perce, Quebec, in the Upper 
Ordovician beds 2 and 7 (Schuchert and Cooper 1930, 169). 
British Columbia. Beaver foot range, Windermere area, Kananaskis- 
Palliser area (“ C. anticostiensis Wilson 1926, 9). 
Manitoba and Saskatchewan. The original correlations in this region 
have recently been revised. Dowling (1900, 69, 79, 81F) records C. cana- 
densis from the Upper and Lower Mottled Sandstone which were included 
by Foerste (1926 and 1929) in the Red River formation. The Stony 
Mountain formation above this is definitely Richmond and also contains 
Calapoecia (Twenhofel, 1928, 66-71). Foerste (1929, 143-6) was formerly 
inclined to regard the Red River formation as of Richmond age on account 
of the coral and brachiopods present; but in 1932 (56) suggested that it 
might be of an intermediate horizon. Dowling (1900, 49F) thought that 
these beds “ suggest a passage from Black River to Trenton.” 
The revision of the south Manitoba section raises several points with 
regard to the correlation of the Ordovician rocks of Hudson Bay region. 
Savage and van Tuyl (1919, 341-2) record Calapoecia cf. canadensis from 
the Ekwan River limestone (Niagaran, according to those authors), the 
Shammatawa limestone (Cincinnatian), and the Nelson River limestone 
(Mohawkian). But Foerste (1928, 27, and 1929, 138) correlates those 
beds differently. The Nelson River limestone he considers the equivalent 
of the Red River formation (probably of the Dog Head member) on the 
presence of diagnostic cephalopods, and the Shammatawa limestone of the 
Selkirk, or a little later, on account of the brachiopod fauna. 
Certain other recorded occurrences of Calapoecia in Manitoba district 
may be noticed: Whiteaves’ (1881, 57c) Col. cribriformis from the “ Galena 
limestone ” of E. Selkirk and the Red River; and Tyrrell’s (1898, 91f, 75f) 
record of C. canadensis from Churchill in strata similar to a high horizon 
in the Trenton limestone of Manitoba (See also Mclnnes, 1913, 60). 
Bassler (1915, 1456) suggested a Richmond age for this Red River fauna 
and Foerste (1928, 30) wns inclined to agree with this. 
Alaska. In the Port Clarence limestone, probably of Richmond age 
(Kindle 1911, 344-6; Cairnes 1914, 67, 69). 
The Arctic Regions. In the probably pre-Richmond strata of Akpatok 
island {C. canadensis, var. anticostiensis and var. ungava) ; the Cape Cal- 
houn beds of Northwest Greenland (C. canadensis, var. anticostiensis and 
forma arctica auct. after Troedsson 1928, Koch 1929). There are certain 
reasons for believing that Richmond forms are represented in the collections 
I 
