USNM:PAL
Megastrophia hemispherica (Hall)
USNM PAL126679 R. Finks
United States, New York, Orange County
USNM:PAL
Strophonella reversa (Hall)
USNM PAL177293 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Leptostrophia (Leptostrophiella) Harper & Boucot
USNM PAL220484 Skidmore 1958-00-00
Canada, Quebec
USNM:PAL
Cymostrophia Johnson
USNM PAL156782 Johnson
United States, Nevada, Eureka County
USNM:PAL
Mesodouvillina varistriata arata (Conrad)
USNM PAL156937 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Brachyprion (Protomegastrophia) Harper & Boucot
USNM PAL220662 A. Boucot 1956-00-00
Sweden, Gotland, Tofta Parish
USNM:PAL
Megastrophia gibbosa Imbrie
USNM PAL124392 C. Southworth
Canada, Ontario
USNM:PAL
Strophonella alterniradiata Amsden
USNM PAL115340 T. Amsden
United States, Oklahoma, Pontotoc County
USNM:PAL
Strophoprion euglypha (Dalman)
USNM PAL220944 A. Boucot 1957-00-00
Great Britain
USNM:PAL
Protoleptostrophia blainvillei (Billings)
USNM PAL127393 A. Boucot 1950-07-20
United States, Maine, Somerset County
USNM:PAL
Costistrophonella lineolata (Dunbar)
USNM PAL27784 C. Schuchert 1897-00-00
United States, Tennessee, Benton County
USNM:PAL
Brachyprion (Eomegastrophia) geniculata (Waite)
USNM PAL220693
United States, Utah
USNM:PAL
Megastrophia transitans Johnson
USNM PAL156949 Murphy
United States, Nevada, Eureka County
USNM:PAL
Brachyprion robustum Twenhofel
USNM PAL491117
Canada, Newfoundland
USNM:PAL
Cymostrophia stephani (Barrande)
USNM PAL220590 A. Boucot
Czechoslovakia
USNM:PAL
Strophodonta demissa (Conrad)
USNM PAL220780 G. Cooper
United States, Ohio
USNM:PAL
Strophodonta elongata Imbrie
USNM PAL124352 Cooper & Cloud
United States, Michigan, Alpena County
USNM:PAL
Rhenostrophia subarachnoidea (d'Archiac & De Verneuil)
USNM PAL220655 A. Boucot 1956-00-00
Germany
USNM:PAL
Brachyprion (Brachyprion) mirabilis Johnson
USNM PAL156920 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Megastrophia multicosta Mitchell
USNM PAL249380F
United States, Ohio, Lucas County
USNM:PAL
Leptostrophia becki (Hall)
USNM PAL97721B Butts & Edmundson
United States, Virginia, Highland County
USNM:PAL
Mesodouvillina Boucot & Thompson
USNM PAL140056
USNM:PAL
Strophonella undaplicata Swartz
USNM PAL176971 Maryland Geological Survey
United States, West Virginia, Mineral County
USNM:PAL
Strophonella punctulifera (Conrad)
USNM PAL156909 Murphy
United States, Nevada, Eureka County
USNM:PAL
Brachyprion (Protomegastrophia) Harper & Boucot
USNM PAL220679 A. Boucot 1956-00-00
Sweden, Gotland, Tofta Parish
USNM:PAL
Mesodouvillina varistriata (Conrad)
USNM PAL156927 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Cymostrophia stephani (Barrande)
USNM PAL220582
Czechoslovakia
USNM:PAL
Brachyprion (Brachyprion) mirabilis Johnson
USNM PAL156922 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Mesodouvillina varistriata (Conrad)
USNM PAL156933 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Leptostrophia Boucot & Thompson
USNM PAL140075
USNM:PAL
Megastrophia transitans Johnson
USNM PAL156957 Johnson
United States, Nevada, Eureka County
USNM:PAL
Leptostrophia (Leptostrophia) explanata (Sowerby)
USNM PAL220456 A. Boucot 1956-00-00
Germany
USNM:PAL
Costistrophonella ampla (Hall)
USNM PAL220947 Southard
United States, New York
USNM:PAL
Strophodonta potterensis Imbrie
USNM PAL124310 Cooper & Cloud
United States, Michigan, Alpena County
USNM:PAL
Leptostrophia Bowen
USNM PAL153127
USNM:PAL
Douvillina cayuta var. graciliora Clarke & Swartz
USNM PAL177110 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Strophodonta extenuata extenuata Imbrie
USNM PAL124326 Unknown
United States, Michigan, Alpena County
USNM:PAL
Strophonella punctulifera (Conrad)
USNM PAL97872A C. Butts
United States, Virginia, Highland County
USNM:PAL
Brachyprion newsomensis Foerste
USNM PAL87032
USNM:PAL
Planodouvillina cortezi Harper & Boucot
USNM PAL156945
USNM:PAL
Megastrophia transitans Johnson
USNM PAL156956 Murphy
United States, Nevada, Eureka County
USNM:PAL
Strophodonta calvini Miller
USNM PAL13797A C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Douvillina cayuta var. graciliora Clarke & Swartz
USNM PAL177111 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Megastrophia (Megastrophiella) iddingsi (Merriam)
USNM PAL156959
USNM:PAL
Brachyprion shaleri Williams
USNM PAL58951
USNM:PAL
Douvillina bellistriata Cooper & Cloud
USNM PAL95170E Cooper & Cloud
United States, Illinois, Calhoun County
USNM:PAL
Strophodonta extenuata rockportensis Imbrie
USNM PAL124328 Unknown
United States, Michigan, Alpena County
USNM:PAL
Mesodouvillina varistriata (Conrad)
USNM PAL156928 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Brachyprion attenuata Amsden
USNM PAL115375 A. Loeblich
United States, Oklahoma, Pontotoc County
USNM:PAL
Protoleptostrophia perplana (Conrad)
USNM PAL173992 Ellison
United States, Pennsylvania, Bedford County
USNM:PAL
Strophodonta alpenensis Grabau
USNM PAL124354 G. Cooper
United States, Michigan, Alpena County
USNM:PAL
Mesodouvillina (Mesodouvillina) triculata (Fuchs)
USNM PAL220564 A. Boucot 1957-00-00
Germany
USNM:PAL
Mesodouvillina costatuloides Johnson et al.
USNM PAL171335 M. Murphy 1966-00-00
United States, Nevada, Eureka County
USNM:PAL
Leptodonta attenuata (Amsden)
USNM PAL115377
USNM:PAL
Douvillina arcuata (Hall)
USNM PAL220627
United States, Iowa
USNM:PAL
Brachyprion (Eomegastrophia) geniculata (Waite)
USNM PAL220687
United States, Utah
USNM:PAL
Strophodonta beckii Hall
USNM PAL25675
USNM:PAL
Mesodouvillina Boucot & Thompson
USNM PAL140059
USNM:PAL
Megastrophia (Megastrophia) proxicostellata Fagerstrom
USNM MO549470
Canada, Ontario, Bruce County
USNM:PAL
Douvillina bellistriata Cooper & Cloud
USNM PAL95170A Cooper & Cloud
United States, Illinois, Calhoun County
USNM:PAL
Strophodonta micropleura Imbrie
USNM PAL124366 Cooper & Cloud
United States, Michigan, Alpena County
USNM:PAL
Leptostrophia Boucot
USNM PAL126147 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Douvillina inaequistriata (Conrad)
USNM PAL188171 R. Ellison
United States, Pennsylvania
USNM:PAL
Douvillina extensa Butts
USNM PAL98032A Butts & Oder
United States, West Virginia
USNM:PAL
Douvillina sp 2 (Hall)
USNM PAL203561A R. Flower
United States, New Mexico
USNM:PAL
Brachyprion robustum Twenhofel
USNM PAL491116
Canada, Newfoundland
USNM:PAL
Strophodonta extenuata bellensis Imbrie
USNM PAL124299 Harris
United States, Michigan, Presque Isle County
USNM:PAL
Leptostrophia sp a Boucot & Johnson
USNM PAL164767 R. Shagam 1963-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Douvillina inaequistriata immatura Ellison
USNM PAL173998 Ellison
United States, Pennsylvania, Perry County
USNM:PAL
Strophonella (Strophonella) laxiplicata Foerste
USNM PAL220517 Amsden 1960-00-00
United States, Oklahoma, Pontotoc County
USNM:PAL
Strophodonta calvini Miller
USNM PAL13797 C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Strophodonta nanus Imbrie
USNM PAL124344 Unknown
United States, Michigan, Alpena County
USNM:PAL
Mesodouvillina varistriata (Conrad)
USNM PAL257583
United States, Alaska
USNM:PAL
Mesodouvillina (Mesodouviella) Harper & Boucot
USNM PAL220558 A. Boucot 1960-00-00
Turkey
USNM:PAL
Leptostrophia (Leptostrophia) magnifica (Hall)
USNM PAL126159 A. Boucot 1949-07-14
United States, Maine, Somerset County
USNM:PAL
Megastrophia multicosta Mitchell
USNM PAL249381
United States, Ohio, Lucas County
USNM:PAL
Leptostrophia perplana (Conrad)
USNM PAL62163
USNM:PAL
Strophodonta gregaria Mitchell
USNM PAL642046
United States, Ohio, Lucas County
USNM:PAL
Strophodonta demissa (Conrad)
USNM PAL220783 R. Miller
United States, Missouri
USNM:PAL
Strophonella (Amphistrophia) continens equalis Clarke
USNM PAL56698
USNM:PAL
Mesodouvillina (Mesodouviella) invasor (Johnson)
USNM PAL156941
USNM:PAL
Protoleptostrophia perplana (Conrad)
USNM PAL173988 Ellison
United States, Pennsylvania, Bedford County
USNM:PAL
Leptostrophia (Leptostrophia) magnifica (Hall)
USNM PAL126158 A. Boucot 1949-08-27
United States, Maine, Somerset County
USNM:PAL
Strophodonta fascis Imbrie
USNM PAL124330 Cooper & Cooper
United States, Michigan, Alpena County
USNM:PAL
Douvillina inaequistriata immatura Ellison
USNM PAL173999 Ellison
United States, Pennsylvania, Perry County
USNM:PAL
Leptostrophia sp a Boucot & Johnson
USNM PAL164766 R. Shagam 1963-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Leptostrophia (Leptostrophiella) Harper & Boucot
USNM PAL220483 Skidmore 1958-00-00
Canada, Quebec
USNM:PAL
Protoleptostrophia Boucot
USNM PAL126676A R. Finks
United States, New York, Orange County
USNM:PAL
Maoristrophia neozelanica Allan
USNM PAL153135
USNM:PAL
Protoleptostrophia concinna (Morris & Sharpe)
USNM PAL209049
Bolivia
USNM:PAL
Strophodonta crassa Imbrie
USNM PAL124311 Cooper & Cloud
United States, Michigan, Alpena County
USNM:PAL
Maoristrophia neozelanica Allan
USNM PAL153137
USNM:PAL
Mesodouvillina varistriata (Conrad)
USNM PAL156929 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Protoleptostrophia perplana (Conrad)
USNM PAL173991 Ellison
United States, Pennsylvania, Perry County
USNM:PAL
Protoleptostrophia perplana (Conrad)
USNM PAL173989 Ellison
United States, Pennsylvania, Bedford County
USNM:PAL
Costistrophonella ampla (Hall)
USNM PAL220949 Southard
United States, New York
USNM:PAL
Strophonella (Strophonella) laxiplicata Foerste
USNM PAL115369 A. Loeblich
United States, Oklahoma, Pontotoc County
USNM:PAL
Douvillina cayuta var. graciliora Clarke & Swartz
USNM PAL177109 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Strophonella haueri (Barrande)
USNM PAL164778 R. Shagam 1962-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Leptostrophia Boucot
USNM PAL126120 1952-00-00
United States, Maine, Somerset County