PART I 
CHAZYAN AND RELATED BRACHIOPODS—-COOPER 
ANNOTATED LIST OF GENERA AND SPECIES—Continued 
Species 
Torynelasma minor Cooper 
T. toryniferum Cooper 
Trematis elliptopora Cooper 
T. foerstet Cooper 
T. huronensis Billings 
T. minneapolis (Sardeson) 
T. parva Cooper 
T. ? spinosa Cooper 
Trematis sp. 1 
Trematis sp. 2 
Trematis sp. 3 
Trematorthis masoni Ulrich 
and Cooper 
T. robusta Cooper 
T. tenuis Cooper 
Trigrammaria trigonalis 
prima Wilson 
T. wilsonae Cooper 
T. winchelli (Hall and Clarke) 
Triplesia carinata Cooper 
T. subcarinata Cooper 
Triplesia sp. 1 
Tropidothyris pentagona 
Cooper 
Undiferina rugosa Cooper 
Valcourea angulata ( Phieger) 
V. austrina Cooper 
SPECIES 
Stage Formation 
Porterfield Pratt Ferry 
Porterfield Pratt Ferry 
Porterfield Pratt Ferry 
Wilderness Plattin (Macy), 
or Barnhart 
Wilderness Black River 
Wilderness Decorah 
(Spechts Ferry) 
Porterfield Whitesburg, 
Chatham Hill 
Porterfield Pratt Ferry 
Porterfield Whitesburg 
Porterfield Whitesburg 
Porterfield Edinburg 
(Cyrtonotella 
zone) 
Whiterock Upper Pogonip 
(Orthidiella 
zone) 
Whiterock Upper Pogonip 
(Orthidiella 
zone) 
Whiterock Upper Pogonip 
(Orthidiella 
zone) 
Wilderness Chaumont 
Wilderness Rockland 
(Napanee) 
Wilderness Platteville 
Porterfield Pratt Ferry 
Wilderness Lebanon 
Porterfield Whitesburg 
Porterfield Pratt Ferry 
Porterfield Pratt Ferry 
Ashby Barrel Spring 
Ashby Whistle Creek, 
Ellett 
Geographic 
location 
Ala. 
Ala. 
Ala. 
Mo. 
Lake Huron 
Minn. 
Tenn., Va. 
Ala. 
Tenn. 
Tenn. 
Wer 
Nev. 
Nev. 
Nev. 
Quebec 
Ney 
Ill., Wis., 
Minn. 
Ala. 
Tenn. 
Tenn. 
Ala. 
Ala. 
Calif. 
Var 
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405 
