18 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. [bull. 87. 



Tahi.k l.—Braclnopod genera alphahctically (trvnnged, their (jcohnjir distrihiilion, and 

 Korih Jvicrican specific rcjrrcKevltilion. 



[In tbe column "Ordinal rank" A.,X.,P., T. equal tin? first letters of Atromata, Xootromata, Protre- 

 mata, and Telotremata, respectively. The geologic occurrence of uon-American genera or tbe earlier 

 appearance or later continuance of American genera in otber countries is indicated by a black line. 

 Small superior numerals indicate tbe number of species baving distribution.] 



