USNM:PAL
Acrotreta primaeva Walcott
USNM PAL15343A
USNM:PAL
Acrotreta pacifica Walcott
USNM PAL52508A
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269E C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Acrotreta pyxidicula White
USNM PAL52147C C. Walcott 1898-00-00
United States, Idaho, Oneida County
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269C C. Walcott 1880-00-00
United States, Nevada, Eureka District
USNM:PAL
Apsotreta Rowell
USNM PAL182774
United States, Nevada
USNM:PAL
Linnarssonia ophirensis (Walcott)
USNM PAL139488
United States, Utah, Tooele County
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512B
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL290217
USNM:PAL
Conotreta rusti Walcott
USNM PAL18443A
USNM:PAL
Acrotreta sagittalis (Salter)
USNM PAL52155A
Wales
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL140665G Shell Development Co.
United States, Montana, Mccone County
USNM:PAL
Acrotreta ophirensis rugosa Walcott
USNM PAL35282B C. Walcott
United States
USNM:PAL
Acrotreta definita Walcott
USNM PAL35271C C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128M C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281D C. Walcott
United States, Utah, Tooele County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287H
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203R
USNM:PAL
Conotreta gigantea Cooper
USNM PAL109734 G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Homotreta interrupta Bell
USNM PAL111869
United States, Montana
USNM:PAL
Acrotreta nox Walcott
USNM PAL52132
United States, Wisconsin
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52073E S. Loper
Canada, Nova Scotia
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497166 A. Keith
Canada, Quebec
USNM:PAL
Acrotreta idahoensis Walcott
USNM PAL52091B C. Walcott 1898-00-00
United States, Idaho, Oneida County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287O C. Walcott
United States, South Dakota, Lawrence County
USNM:PAL
Conotreta Cooper & Kindle
USNM PAL91808
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269G C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Prototreta attenuata (Meek)
USNM PAL7867B
USNM:PAL
Acrotreta cancellata Walcott
USNM PAL52079A Hague & Iddings
United States, Nevada
USNM:PAL
Acrotreta inflata (Matthew)
USNM PAL35276H
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35289E
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281K
USNM:PAL
Conotreta apicalis Cooper
USNM PAL116813D G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Acrothyra sera (Matthew)
USNM PAL52054C S. Loper 1903-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052Q S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta snowyensis Bell
USNM PAL127198
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128I C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Acrotreta microscopica tetonensis Walcott
USNM PAL35280C C. Walcott
United States, Wyoming, Uinta County
USNM:PAL
Acrotreta gemma Billings
USNM PAL15342B
United States, Nevada
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281K C. Walcott
United States, Utah, Tooele County
USNM:PAL
Acrotreta microscopica missouriensis Walcott
USNM PAL35278D
USNM:PAL
Acrotreta ulrichi Walcott
USNM PAL98692A
United States, Missouri, Ste. Genevieve County
USNM:PAL
Acrotreta idahoensis Walcott
USNM PAL52091F C. Walcott 1898-00-00
United States, Idaho, Oneida County
USNM:PAL
Acrotreta attenuata Meek
USNM PAL7867B
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203J
USNM:PAL
Acrotreta inflata (Matthew)
USNM PAL35276G
USNM:PAL
Acrotreta buttsi Resser
USNM PAL94778
USNM:PAL
Acrothyra sera (Matthew)
USNM PAL52056B S. Loper 1903-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta uplandica limoensis Wiman
USNM PAL57101B
USNM:PAL
Linnarssonella modesta Walcott
USNM PAL52197A Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Acrotreta venia Walcott
USNM PAL57564
USNM:PAL
Acrotreta gadsdenensis Resser
USNM PAL94991C C. Resser
United States, Alabama
USNM:PAL
Acrotreta primaeva Walcott
USNM PAL52061A
USNM:PAL
Acrotreta ulrichi Walcott
USNM PAL98692B
United States, Missouri, Ste. Genevieve County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287E
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203P
USNM:PAL
Acrotreta microscopica tetonensis Walcott
USNM PAL35280B
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL35277I C. Walcott
United States, Alabama, Cherokee County
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL52112B C. Walcott
United States, Tennessee, Hawkins County
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35289C C. Walcott
United States, Tennessee, Roane County
USNM:PAL
Opisthotreta depressa Palmer
USNM PAL186048 1947-00-00
United States, Texas, Mason County
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52073A
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281L C. Walcott
United States, Utah, Tooele County
USNM:PAL
Acrothyra sera (Matthew)
USNM PAL52054H S. Loper 1903-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta marjumensis Walcott
USNM PAL52116A
USNM:PAL
Acrotreta attenuata Meek
USNM PAL52069A Walcott, Weeks & Burling 1903-00-00
United States, Utah, Millard County
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281H
USNM:PAL
Acrotreta atticus Walcott
USNM PAL61683 Walcott Et Al
Canada, British Columbia
USNM:PAL
Acrotreta convexa Walcott
USNM PAL52084A S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrothyra sera (Matthew)
USNM PAL52055 S. Loper 1903-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta lakeviewensis Resser
USNM PAL95024
USNM:PAL
Conotreta depressa Cooper
USNM PAL116815K G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Acrotreta idahoensis Walcott
USNM PAL52089E
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL35277H C. Walcott
United States, Alabama, Cherokee County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL185552
United States, Texas, Llano County
USNM:PAL
Acrotreta sagittalis (Salter)
USNM PAL93064B Mertie 1930-00-00
United States, Alaska
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128D C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Acrothyra minor Walcott
USNM PAL52050C
USNM:PAL
Acrotreta schucherti Lochman
USNM PAL109083
USNM:PAL
Acrotreta ulrichi Walcott
USNM PAL98691A
United States, Missouri, Ste. Genevieve County
USNM:PAL
Acrotreta bellatula Walcott
USNM PAL52072A
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52162B C. Walcott
United States, New York, Washington County
USNM:PAL
Acrotreta attenuata Meek
USNM PAL52070C
USNM:PAL
Acrotreta microscopica (Shumard)
USNM PAL182793 Walcott & Walcott 1922-09-06
Canada, British Columbia
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287D C. Walcott
United States, South Dakota, Lawrence County
USNM:PAL
Acrotreta sulcata (Walcott)
USNM PAL52109C Walcott & Burling 1906-00-00
United States, Idaho, Oneida County
USNM:PAL
Acrotreta ulrichi Walcott
USNM PAL52180A
United States, Oklahoma, Carter County
USNM:PAL
Eurytreta bisecta (Matthew)
USNM PAL516758 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052C S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta lisani Walcott
USNM PAL52505A Blackwelder
China, Shantung
USNM:PAL
Linnarssonella elongata Bell
USNM PAL140666
USNM:PAL
Spondylotreta declivis (Willard)
USNM PAL109727C G. Cooper
United States, Virginia
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497155 A. Keith
Canada, Quebec
USNM:PAL
Acrotreta gemmula Matthew
USNM PAL52088B S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203I
USNM:PAL
Acrotreta atticus Walcott
USNM PAL61684
USNM:PAL
Linnarssonia taconica Walcott
USNM PAL52163C C. Walcott 1886-00-00
United States, New York, Washington County
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270I Spence
United States, Idaho, Bear Lake County
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052O S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL52188B E. Ulrich 1901-00-00
United States, Oklahoma, Comanche County