USNM:PAL
Sowerbyella negritus (Willard)
USNM PAL98228B
USNM:PAL
Anisopleurella tricostellata Cooper
USNM PAL117475
USNM:PAL
Sowerbyella Butts
USNM PAL98207C R. Mesler
United States, Virginia, Scott County
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL117491I G. Cooper
United States, Tennessee
USNM:PAL
Sowerbyella silicica Cooper
USNM PAL123457A
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL117508C G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117483B Cooper Et Al
United States, Tennessee
USNM:PAL
Sowerbyella Howe
USNM PAL208606
United States, Kentucky
USNM:PAL
Sowerbyella (Plectambonites) clarksvillensis Foerste
USNM PAL80619
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117489A G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella bellarugosa Ulrich & Cooper
USNM PAL92867L
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL117491G G. Cooper
United States, Tennessee
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208575
United States, Kentucky
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117484B Cooper & Loeblich
United States, Tennessee
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL80497B
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98230B C. Butts
United States, Virginia
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL117398E G. Cooper
United States, Bibb County
USNM:PAL
Sowerbyella parva Cooper
USNM PAL117507A G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella variabilis Cooper
USNM PAL117537 Loeblich Et Al
United States, Oklahoma, Carter County
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL172144 Allen & Lester
United States, Georgia, Walker County
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL98207D
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117543C A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella saxea (Sardeson)
USNM PAL135203
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208585
United States, Kentucky
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL117398A G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL117398D G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Sowerbyella plicatifera Cooper
USNM PAL117512B A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117519 C. Butts
United States, Virginia
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL111056 Bridge & Cooper
United States, Virginia
USNM:PAL
Sowerbyella cava Cooper
USNM PAL117481 Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella aequicostellata Cooper
USNM PAL117476 G. Cooper
United States, Pennsylvania
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208583
United States, Kentucky
USNM:PAL
Anisopleurella Neuman
USNM PAL465193
United States, Maine, Aroostook County
USNM:PAL
Sowerbyella plicatifera Cooper
USNM PAL117511A A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117540D A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella silicica nana Cooper
USNM PAL117518 Bridge & Cooper
United States, Virginia
USNM:PAL
Sowerbyella subcarinata (Ulrich)
USNM PAL117534D G. Cooper
United States, Alabama
USNM:PAL
Sowerbyella rugosa (Meek)
USNM PAL208597
United States, Kentucky
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98231B C. Butts
United States, Virginia, Rockingham County
USNM:PAL
Sowerbyella subcarinata (Ulrich)
USNM PAL117534A G. Cooper
United States, Alabama
USNM:PAL
Sowerbyella punctostriata (Mather)
USNM PAL117516 J. Hill
United States, New York
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL117491H G. Cooper
United States, Tennessee
USNM:PAL
Sowerbyella aequicostellata Cooper
USNM PAL117477 R. Mesler
United States, Virginia
USNM:PAL
Plectodonta Boucot & Thompson
USNM PAL140048
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117525B G. Cooper
United States, Virginia
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL111042A Bridge & Cooper
United States, Virginia
USNM:PAL
Sowerbyella Butts
USNM PAL98207B R. Mesler
United States, Virginia, Scott County
USNM:PAL
Sowerbyella eximia Cooper
USNM PAL117492D Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117487B G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella cava Cooper
USNM PAL117481A Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208578
United States, Kentucky
USNM:PAL
Sowerbyella Butts
USNM PAL98228A C. Butts
United States, Virginia, Rockbridge County
USNM:PAL
Sowerbyella rugosa (Meek)
USNM PAL97581B C. Butts
United States, Virginia, Roanoke County
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL117496A R. Bassler
United States, Tennessee, Maury County
USNM:PAL
Sowerbyella sp 2 Cooper
USNM PAL117545B C. Butts
United States, Pennsylvania
USNM:PAL
Sowerbyella eximia Cooper
USNM PAL117492 Cooper & Loeblich
United States, Virginia
USNM:PAL
Ptychoglyptus kindlei Cooper
USNM PAL117392C Kindle
Canada, Newfoundland
USNM:PAL
Sowerbyella sp 2 Cooper
USNM PAL117545A C. Butts
United States, Pennsylvania
USNM:PAL
Sowerbyella negritus (Willard)
USNM PAL117506B Bridge & Cooper
United States, Virginia
USNM:PAL
Sowerbyella rugosa var. triradiatus (Meek)
USNM PAL97582C C. Butts
United States, Virginia, Shenandoah County
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL111042B Bridge & Cooper
United States, Virginia
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117527B G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella silicica Cooper
USNM PAL98213D
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL80497D
USNM:PAL
Anisopleurella inaequistriata Cooper
USNM PAL110929B E. Ulrich
United States, Tennessee
USNM:PAL
Sowerbyella monilifera Cooper
USNM PAL117499A Bridge
United States, Wisconsin
USNM:PAL
Sowerbyella aequicostellata Cooper
USNM PAL117477G R. Mesler
United States, Virginia
USNM:PAL
Sowerbyella Butts
USNM PAL98213B C. Butts
United States, Virginia, Smyth County
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL117508I G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella parva Cooper
USNM PAL117507D G. Cooper
United States, Virginia
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98231B C. Butts
United States, Virginia, Rockingham County
USNM:PAL
Sowerbyella subcarinata (Ulrich)
USNM PAL71525C
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL117494B A. Loeblich
United States, Tennessee, Rutherford County
USNM:PAL
Sowerbyella bellarugosa Ulrich & Cooper
USNM PAL92867
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98231A C. Butts
United States, Virginia, Rockingham County
USNM:PAL
Sowerbyella aequistriata (Willard)
USNM PAL117478F G. Cooper
United States, Tennessee
USNM:PAL
Sowerbyella socialis crassa Cooper
USNM PAL117529A G. Cooper
United States, Tennessee
USNM:PAL
Sowerbyella cava Cooper
USNM PAL117481B Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella plicatifera Cooper
USNM PAL117512A A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117523B G. Cooper
United States, Virginia
USNM:PAL
Aegiromena Neuman
USNM PAL465194
United States, Maine, Aroostook County
USNM:PAL
Sowerbyella sp 1 Cooper
USNM PAL117544A G. Cooper
United States, Oklahoma, Murray County
USNM:PAL
Plectodonta Boucot & Thompson
USNM PAL140040
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117484A Cooper & Loeblich
United States, Tennessee
USNM:PAL
Sowerbyella Butts
USNM PAL97543C C. Butts
United States, Virginia, Shenandoah County
USNM:PAL
Sowerbyella cava Cooper
USNM PAL123258B Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117540B A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella indistincta Cooper
USNM PAL117493 A. Loeblich
United States, Oklahoma, Carter County
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL117508G G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL80497A
USNM:PAL
Sowerbyella grierensis Howe
USNM PAL208591
United States, Kentucky
USNM:PAL
Sowerbyella socialis crassa Cooper
USNM PAL117528A G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL117508 G. Cooper
United States, Virginia
USNM:PAL
Ptychoglyptus ulrichi Endo
USNM PAL83641
USNM:PAL
Sowerbyella cava Cooper
USNM PAL123258A Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella medioplicata Cooper
USNM PAL117498 C. Butts
United States, Virginia
USNM:PAL
Sowerbyella Butts
USNM PAL98206C R. Mesler
United States, Virginia, Scott County
USNM:PAL
Sowerbyella monilifera Cooper
USNM PAL117500 Cole
United States, Minnesota, Goodhue County
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL98207C
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117523A G. Cooper
United States, Virginia