PART I 
CHAZYAN AND RELATED BRACHIOPODS—COOPER 
ANNOTATED LIST OF GENERA AND SPECIES—Continued 
Species 
P. tenuis Cooper 
P. transversa Cooper 
Plectorthis sp. 1 
Plectorthis sp. 2 
Pleurorthis convexa Cooper 
P. corinna (Billings) 
P. costellata Cooper 
P. fascicostellata Cooper 
P. imbecilis (Billings) 
P. tritonia (Billings) 
Pleurorthis sp. 1 
Pleurorthis sp. 2 
Porambonites ? umbonatus 
Cooper 
Porambonites ? sp. 1 
Porambonites ? sp. 2 
Porambonites ? sp. 3 
Porambonites sp. 4 
Productorthis agilera 
(Willard) 
P. americana Cooper 
Protorhyncha dubia (Hall) 
Protozyga costata Cooper 
P. elongata Cooper 
P. exigua (Hall) 
P. loeblichi Cooper 
SPECIES 
Stage Formation 
Porterfield Benbolt 
Porterfield Ward Cove 
Porterfield- Shippensburg 
Wilderness (Pinesburg ) 
Porterfield Murfreesboro 
Whiterock Boulder in 
Mystic cel. 
Whiterock Boulder in 
Mystic cgl. 
Whiterock Boulder in 
Mystic cel. 
Whiterock Boulder in 
Mystic cel. 
Whiterock Table Head 
Whiterock Boulder in Lévis 
shale (boulder 
No. 2) 
Whiterock Table Head 
Whiterock Table Head 
Whiterock Upper Pogonip 
(Rhysostrophia 
zone ) 
Whiterock Upper Pogonip 
(Anomalorthis 
zone) 
Whiterock Table Head 
Whiterock Upper Pogonip 
(Orthidiella 
zone) 
Trenton Salona 
Porterfield Effna 
Porterfield Arline, Botetourt, 
Little Oak 
Marmor Chazy 
Porterfield Bromide 
(Mountain Lake) 
Porterfield Bromide 
(Mountain Lake) 
Wilderness Rockland 
(Napanee) 
Wilderness Bromide 
(Pooleville) 
Geographic 
location 
Va. 
Va. 
Pa. 
Tenn. 
Quebec 
Quebec 
Quebec 
Quebec 
Newfoundland 
Quebec 
Newfoundland 
Newfoundland 
Nev. 
Calif. 
Newfoundland 
Nev. 
Pa. 
Va. 
Tenn., Ala. 
Okla. 
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