USNM:PAL
Sowerbyella Howe
USNM PAL208608
United States, Kentucky
USNM:PAL
Sowerbyella aequicostellata Cooper
USNM PAL117477F R. Mesler
United States, Virginia
USNM:PAL
Sowerbyella monilifera Cooper
USNM PAL117500B Cole
United States, Minnesota, Goodhue County
USNM:PAL
Sowerbyella aequistriata (Willard)
USNM PAL117478B G. Cooper
United States, Tennessee
USNM:PAL
Sowerbyella aequicostellata Cooper
USNM PAL117477B R. Mesler
United States, Virginia
USNM:PAL
Sowerbyella bellarugosa Ulrich & Cooper
USNM PAL92867E
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117524A G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117487A G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117540C A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella bellarugosa Ulrich & Cooper
USNM PAL92867A
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117522 Bridge
United States, Tennessee
USNM:PAL
Sowerbyella grierensis Howe
USNM PAL208590
United States, Kentucky
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL98207A
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL98206C
USNM:PAL
Sowerbyella sp 3 Cooper
USNM PAL117546 G. Cooper
United States, Nevada
USNM:PAL
Sowerbyella plicatifera Cooper
USNM PAL117511 A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117530A Cooper & Loeblich
United States, Tennessee
USNM:PAL
Plectodonta Boucot & Thompson
USNM PAL140049
USNM:PAL
Sowerbyella nasuta Cooper
USNM PAL117501 G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella Butts
USNM PAL98213D C. Butts
United States, Virginia, Smyth County
USNM:PAL
Sowerbyella nasuta Cooper
USNM PAL117502C G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella saxea (Sardeson)
USNM PAL80620
USNM:PAL
Sowerbyella subcarinata (Ulrich)
USNM PAL71525F
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117542A A. Loeblich
United States, Oklahoma, Carter County
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL117497B R. Bassler
United States, Tennessee, Giles County
USNM:PAL
Sowerbyella bellarugosa Ulrich & Cooper
USNM PAL92867L E. Kirk
United States, Nevada
USNM:PAL
Plectodonta Boucot & Thompson
USNM PAL140042
USNM:PAL
Anisopleurella tricostellata Cooper
USNM PAL117475B G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Sowerbyella variabilis Cooper
USNM PAL117535A A. Loeblich
United States, Oklahoma, Carter County
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98230A C. Butts
United States, Virginia
USNM:PAL
Sowerbyella Butts
USNM PAL98229 C. Butts
United States, Virginia
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208576
United States, Kentucky
USNM:PAL
Sowerbyella eximia Cooper
USNM PAL117492H Cooper & Loeblich
United States, Virginia
USNM:PAL
Ptychoglyptus kindlei Cooper
USNM PAL66290A G. Cooper
Canada, Quebec, Stanbridge Twp
USNM:PAL
Ptychoglyptus kindlei Cooper
USNM PAL117392B Kindle
Canada, Newfoundland
USNM:PAL
Sowerbyella rugosa (Meek)
USNM PAL208596
United States, Kentucky
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117542 A. Loeblich
United States, Oklahoma, Carter County
USNM:PAL
Sowerbyella variabilis Cooper
USNM PAL117539B A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Plectodonta Boucot & Thompson
USNM PAL140047
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98231A C. Butts
United States, Virginia, Rockingham County
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117521 G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella angulata Cooper
USNM PAL71538A
USNM:PAL
Plectodonta (Eoplectodonta) sp b Boucot & Johnson
USNM PAL164813 R. Shagam 1962-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Sowerbyella merriami Cooper
USNM PAL124234A G. Cooper
United States, Nevada
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117542E A. Loeblich
United States, Oklahoma, Carter County
USNM:PAL
Sowerbyella merriami Cooper
USNM PAL124234 G. Cooper
United States, Nevada
USNM:PAL
Sowerbyella angulata Cooper
USNM PAL117479B C. Butts
United States, Alabama
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117526A G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL117491B G. Cooper
United States, Tennessee
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL117398B G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Sowerbyella Butts
USNM PAL98206D R. Mesler
United States, Virginia, Scott County
USNM:PAL
Sowerbyella silicica nana Cooper
USNM PAL98213A
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117530B Cooper & Loeblich
United States, Tennessee
USNM:PAL
Sowerbyella negritus (Willard)
USNM PAL117506A Bridge & Cooper
United States, Virginia
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117543D A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Ptychoglyptus kindlei Cooper
USNM PAL66290 G. Cooper
Canada, Quebec, Stanbridge Twp
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL145711
United States, Nevada
USNM:PAL
Sowerbyella variabilis Cooper
USNM PAL117536B Loeblich Et Al
United States, Oklahoma, Carter County
USNM:PAL
Sowerbyella Butts
USNM PAL98213A C. Butts
United States, Virginia, Smyth County
USNM:PAL
Sowerbyella subcarinata (Ulrich)
USNM PAL71525A
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117483 Cooper Et Al
United States, Tennessee
USNM:PAL
Sowerbyella sp 4 Cooper
USNM PAL117548B G. Cooper
United States, Nevada
USNM:PAL
Sowerbyella nasuta Cooper
USNM PAL117503F G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella nasuta Cooper
USNM PAL117503H G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella cava Cooper
USNM PAL117481E Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella grierensis Howe
USNM PAL208592
United States, Kentucky
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98231B
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208577
United States, Kentucky
USNM:PAL
Sowerbyella angulata Cooper
USNM PAL71538C
USNM:PAL
Sowerbyella platys Butts
USNM PAL97541 C. Butts
United States, Virginia, Shenandoah County
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL98231B
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117483C Cooper Et Al
United States, Tennessee
USNM:PAL
Sowerbyella punctostriata (Mather)
USNM PAL117514A Bridge & Cooper
United States, Missouri
USNM:PAL
Sowerbyella compacta Cooper
USNM PAL117490 G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL117491C G. Cooper
United States, Tennessee
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL111056A Bridge & Cooper
United States, Virginia
USNM:PAL
Ptychoglyptus virginiensis Willard
USNM PAL111042C Bridge & Cooper
United States, Virginia
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208581
United States, Kentucky
USNM:PAL
Sowerbyella eximia Cooper
USNM PAL117492J Cooper & Loeblich
United States, Virginia
USNM:PAL
Sowerbyella socialis Cooper
USNM PAL117520 E. Ulrich
United States, Tennessee
USNM:PAL
Sowerbyella variabilis Cooper
USNM PAL117538A Loeblich Et Al
United States, Oklahoma, Carter County
USNM:PAL
Sowerbyella aequistriata (Willard)
USNM PAL117478A G. Cooper
United States, Tennessee
USNM:PAL
Sowerbyella lebanonensis Bassler
USNM PAL117495A R. Bassler
United States, Tennessee, Bedford County
USNM:PAL
Plectodonta Amsden
USNM PAL158211
United States, Arkansas, Searcy County
USNM:PAL
Ptychoglyptus kindlei Cooper
USNM PAL123254A Kindle
Canada, Newfoundland
USNM:PAL
Sowerbyella Butts
USNM PAL97543D C. Butts
United States, Virginia, Shenandoah County
USNM:PAL
Sowerbyella varicostellata Cooper
USNM PAL117533 G. Cooper
United States, Tennessee
USNM:PAL
Anisopleurella inaequistriata Cooper
USNM PAL110929D E. Ulrich
United States, Tennessee
USNM:PAL
Anisopleurella inaequistriata Cooper
USNM PAL110929A E. Ulrich
United States, Tennessee
USNM:PAL
Sowerbyella vulgata Cooper
USNM PAL117541A A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Sowerbyella Butts
USNM PAL98207E R. Mesler
United States, Virginia, Scott County
USNM:PAL
Sowerbyella Butts
USNM PAL98206B R. Mesler
United States, Virginia, Scott County
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL117508F G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL117508E G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella Howe
USNM PAL208601
United States, Kentucky
USNM:PAL
Ptychoglyptus sp 1 Cooper
USNM PAL123299 Cooper & Mesler
Canada, Quebec, Stanbridge Twp
USNM:PAL
Sowerbyella Butts
USNM PAL98206A R. Mesler
United States, Virginia, Scott County
USNM:PAL
Sowerbyella curdsvillensis (Foerste)
USNM PAL208579
United States, Kentucky
USNM:PAL
Sowerbyella nasuta Cooper
USNM PAL117503B G. Cooper
United States, Virginia
USNM:PAL
Sowerbyella perplexa Cooper
USNM PAL117509A G. Cooper
United States, Virginia, Bland County