USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052G S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287Q
USNM:PAL
Acrotreta claytoni Walcott
USNM PAL52080A
USNM:PAL
Acrotreta concentrica Walcott
USNM PAL35266B C. Walcott
United States, Georgia, Bartow County
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52073D S. Loper
Canada, Nova Scotia
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL185549
United States, Texas, Llano County
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL35277F
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497148 A. Keith
Canada, Quebec
USNM:PAL
Acrotreta sagittalis transversa (Hartt)
USNM PAL52160E C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Eurytreta sublata Popov
USNM PAL516769 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497156 A. Keith
Canada, Quebec
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269I
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288I
USNM:PAL
Linnarssonella modesta Walcott
USNM PAL52197E
USNM:PAL
Conotreta multisinuata Cooper
USNM PAL109742P G. Cooper
United States, Virginia, Bland County
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281M C. Walcott
United States, Utah, Tooele County
USNM:PAL
Acrotreta spinosa Walcott
USNM PAL52176E C. Walcott
United States, Nevada
USNM:PAL
Acrothyra sera (Matthew)
USNM PAL52054F S. Loper 1903-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288I C. Walcott
United States, Tennessee, Knox County
USNM:PAL
Acrotreta ulrichi Walcott
USNM PAL98691C
United States, Missouri, Ste. Genevieve County
USNM:PAL
Eurytreta sublata Popov
USNM PAL516773 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270G Spence
United States, Idaho, Bear Lake County
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512A
USNM:PAL
Acrotreta snowyensis Bell
USNM PAL127199
USNM:PAL
Angulotreta postapicalis Palmer
USNM PAL185979
United States, Texas, Blanco County
USNM:PAL
Acrothyra gregaria Walcott
USNM PAL280970 C. Walcott
Canada, British Columbia
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52163E C. Walcott
United States, New York, Washington County
USNM:PAL
Acrotreta argenta Walcott
USNM PAL52062A F. Weeks
United States, Nevada, Esmeralda County
USNM:PAL
Acrotreta pacifica Walcott
USNM PAL52509 Blackwelder
China, Shantung
USNM:PAL
Acrotreta ophirensis rugosa Walcott
USNM PAL35282C
USNM:PAL
Acrotreta neboensis Walcott
USNM PAL52130C
USNM:PAL
Acrotreta convexa Walcott
USNM PAL35268B
USNM:PAL
Acrothyra minor Walcott
USNM PAL52051
USNM:PAL
Acrotreta gadsdenensis Resser
USNM PAL94991B C. Resser
United States, Alabama
USNM:PAL
Acrotreta bellatula Walcott
USNM PAL52072F
USNM:PAL
Acrotreta rara Howell
USNM PAL532075 B. Howell, C. Howell & B. Howell-Jr.
United States, Vermont, Franklin County
USNM:PAL
Acrotreta signalis Walcott
USNM PAL35285B
USNM:PAL
Physotreta spinosa (Walcott)
USNM PAL139528
United States, Nevada, Eureka County
USNM:PAL
Acrotreta idahoensis alta Walcott
USNM PAL35273D C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269C
USNM:PAL
Linnarssonia sagittalis taconica Walcott
USNM PAL52163E
USNM:PAL
Acrothyra
USNM PAL280996 C. Walcott
Canada, British Columbia
USNM:PAL
Canthylotreta n. Robson & Pratt
USNM PAL527245
United States, South Dakota
USNM:PAL
Eurytreta fillmorensis Holmer et al.
USNM PAL526147
United States, Utah, Millard County
USNM:PAL
Acrotreta concentrica Walcott
USNM PAL35266E C. Walcott
United States, Georgia, Bartow County
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL52201B
USNM:PAL
Acrotreta microscopica missouriensis Walcott
USNM PAL35278A C. Walcott
United States, Missouri, St. Francois County
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270B
USNM:PAL
Acrotreta lisani Walcott
USNM PAL52505B
USNM:PAL
Acrotreta gemma Billings
USNM PAL35273A
United States, Nevada
USNM:PAL
Physotreta spinosa (Walcott)
USNM PAL139531
United States, Nevada, Eureka County
USNM:PAL
Acrotreta rudis Walcott
USNM PAL52111A
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269M
USNM:PAL
Acrotreta concentrica Walcott
USNM PAL35266B
USNM:PAL
Acrotreta attenuata Meek
USNM PAL52065
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128A C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL203723
United States, Missouri, St. Francois County
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269H C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Acrotreta gracia Walcott
USNM PAL35272A
USNM:PAL
Linnarssonella elongata Bell
USNM PAL140666F Shell Development Co.
United States, Montana, Mccone County
USNM:PAL
Acrotreta discoidea Walcott
USNM PAL69686 Walcott Et Al
Canada, British Columbia
USNM:PAL
Acrotreta eucharis Resser
USNM PAL52150A
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52161G C. Walcott 1893-00-00
United States, New York, Washington County
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270G
USNM:PAL
Linnarssonella minuta (Hall & Whitfield)
USNM PAL24553A
USNM:PAL
Eurytreta bisecta (Matthew)
USNM PAL516753 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281E
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL203724
United States, Missouri, St. Francois County
USNM:PAL
Acrotreta microscopica (Shumard)
USNM PAL52120E C. Walcott 1884-00-00
United States, Texas, Burnet County
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203Q G. Schmalensee
Sweden, Christianstad Prov
USNM:PAL
Acrotreta socialis Seebach
USNM PAL35286C
USNM:PAL
Acrotreta Lochman
USNM PAL140736B Shell Development Co.
United States, Montana, Mccone County
USNM:PAL
Acrotreta neboensis Walcott
USNM PAL52130C F. Weeks
United States, Utah
USNM:PAL
Pegmatreta rotunda Bell
USNM PAL111870
United States, Montana
USNM:PAL
Acrotreta eurekensis Ulrich & Cooper
USNM PAL92833A E. Ulrich
United States, Nevada, Eureka District
USNM:PAL
Acrotreta sagittalis (Salter)
USNM PAL52155E
Wales
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288H
USNM:PAL
Acrotreta subsidua White
USNM PAL15345A Wheeler Survey
United States, Utah
USNM:PAL
Acrotreta gemma Billings
USNM PAL7867
USNM:PAL
Acrotreta gemmula Matthew
USNM PAL52088G S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269B
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287L
USNM:PAL
Acrotreta subsidua White
USNM PAL15346
USNM:PAL
Acrotreta pacifica Walcott
USNM PAL57764
USNM:PAL
Acrotreta dubia Howell
USNM PAL532074 B. Howell, C. Howell & B. Howell-Jr.
United States, Vermont, Franklin County
USNM:PAL
Acrotreta knoxvillensis Resser
USNM PAL34718 C. Resser
United States, Tennessee
USNM:PAL
Canthylotreta marjumensis (Walcott)
USNM PAL139501
United States, Utah, Millard County
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281Q
USNM:PAL
Prototreta flabellata Bell
USNM PAL111860
United States, Montana
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35289F
USNM:PAL
Acrotreta ophirensis descendens Walcott
USNM PAL52143A
USNM:PAL
Acrotreta eucharis Resser
USNM PAL52147C
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052E S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Linnarssonia sagittalis taconica Walcott
USNM PAL52163D
USNM:PAL
Conotreta concentrica Cooper
USNM PAL116814 G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Acrotreta sulcata (Walcott)
USNM PAL35275A
USNM:PAL
Pegmatreta bellatula (Walcott)
USNM PAL141296
USNM:PAL
Acrotreta socialis Seebach
USNM PAL35286A
USNM:PAL
Acrotreta taconica (Walcott)
USNM PAL125729B C. Lochman
United States, New York
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL140665D Shell Development Co.
United States, Montana, Mccone County