182 SMITHSONIAN MISCELLANEOUS COLLECTIONS 
ANNOTATED LIST OF GENERA AND SPECIES—Continued 
Species 
S. plicatifera Cooper 
S. punctostriata (Mather ) 
S. silicica Cooper 
S. silicica nana Cooper 
S. socialis Cooper 
S. socialis crassa Cooper 
S. subcarinata (Ulrich) 
S. variabilis Cooper 
S. varicostellata Cooper 
S. vulgata Cooper 
Sowerbyella sp. 1 
Sowerbyella sp. 2 
Sowerbyella sp. 3 
Sowerbyella sp. 4 
Sowerbyites delicatus Cooper 
S. gildersleevei Cooper 
S. hami Cooper 
S. lamellosus Cooper 
S. subnasutus Cooper 
S. triseptatus (Willard) 
Sowerbyites sp. 1 
Sphenotreta acutirostris 
(Hall) 
S. cuneata Cooper 
S. sulcata Cooper 
Spinilingula intralamellata 
Cooper 
Spondylotreta concentrica 
Cooper 
S. ? declivis (Willard) 
SPECIES 
Stage Formation 
Porterfield Bromide 
(Mountain Lake) 
Wilderness Rockland, Decorah 
(Guttenberg) 
Porterfield Arline 
Porterfield Arline 
Wilderness Wardell 
Wilderness Wardell 
Wilderness Carters 
Wilderness Bromide 
( Pooleville) 
Porterfield Arline, Little Oak 
Porterfield Bromide 
(Mountain Lake) 
Porterfield Bromide 
(Mountain Lake) 
Wilderness Rodman 
Wilderness Dark shale under 
Eureka quartzite 
Ashby or Yellow Is. on 25’ 
Porterfield ss. at base of 
Eureka group 
Porterfield Sevier 
Ashby Lincolnshire 
Wilderness Bromide 
(Pooleville) 
Ashby- Bromide 
Porterfield (Mountain Lake) 
Tellico, Great 
Basin 
Ashby Lincolnshire 
Ashby Lincolnshire, 
Lincolnshire 
(Hogskin) 
Ashby or Quebec City 
Porterfield 
Marmor Crown Point 
Porterfield Sevier 
Marmor McLish 
Porterfield Pratt Ferry 
Porterfield Pratt Ferry 
Porterfield Effna 
VOL. 127 
Geographic 
location Page 
Okla. 791 
N.Y., Ontario, 792 
Minn., Wis. 
Va. 793 
Va. 794 
Tenn., Va. 704 
Tenn., Va. 7096 
Ala. 797 
Okla. 798 
Ala., Tenn. 799 
Okla. 801 
Okla. 802 
Pas 802 
Nev. 803 
Nev. 803 
Tenn. 725 
Va. 725 
Okla. 727 
Okla., Nev., 728 
Tenn., Great 
Basin 
Va. 729 
Tenn., Va. 730 
Quebec 732 
N. ¥.° Ve 664 
Tenn. 665 
Okla. 666 
Ala. 210 
Ala. 255 
Va. 256 
