USNM:PAL
Acrotreta Balk
USNM PAL137109
USNM:PAL
Conotreta magna Cooper
USNM PAL109732A G. Cooper
United States, Tennessee
USNM:PAL
Prototreta attenuata (Meek)
USNM PAL7867C
USNM:PAL
Acrotreta attica Walcott
USNM PAL140752E Shell Development Co.
United States, Montana, Mccone County
USNM:PAL
Acrotreta idahoensis Walcott
USNM PAL52091J
USNM:PAL
Acrotreta pyxidicula White
USNM PAL52149B C. Walcott 1905-00-00
United States, Montana, Gallatin County
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128N C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Acrothyra urania (Walcott)
USNM PAL139490
United States, Utah, Salt Lake County
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281I
USNM:PAL
Acrotreta gemma depressa Walcott
USNM PAL52086B K. Rominger
Canada, British Columbia
USNM:PAL
Acrotreta gemma Billings
USNM PAL15342A
United States, Nevada
USNM:PAL
Acrotreta sagittalis transversa (Hartt)
USNM PAL52160D C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Acrothyra
USNM PAL280992 C. Walcott
Canada, British Columbia
USNM:PAL
Eurytreta curvata (Walcott)
USNM PAL139506
United States, Nevada, Eureka County
USNM:PAL
Apsotreta orifera Palmer
USNM PAL185981 1947-00-00
United States, Texas, Mason County
USNM:PAL
Acrotreta subsidua White
USNM PAL8575A Wheeler Survey
United States, Utah
USNM:PAL
Acrotreta venia Walcott
USNM PAL57565 Iddings & San 1909-09-00
Manchuria, Liautung Prov
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52161B
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52073C
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281N C. Walcott
United States, Utah, Tooele County
USNM:PAL
Eurytreta bisecta (Matthew)
USNM PAL516747 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512C
USNM:PAL
Opisthotreta depressa Palmer
USNM PAL186045 1947-00-00
United States, Texas, Mason County
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497163 A. Keith
Canada, Quebec
USNM:PAL
Canthylotreta marjumensis (Walcott)
USNM PAL139504
United States, Utah, Millard County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287N C. Walcott
United States, South Dakota, Lawrence County
USNM:PAL
Linnarssonia taconica Walcott
USNM PAL52166A O. Tefft 1887-00-00
United States, New York, Washington County
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269N
USNM:PAL
Prototreta mimica Bell
USNM PAL141301
USNM:PAL
Prototreta subcircularis Bell
USNM PAL111864
United States, Montana
USNM:PAL
Angulotreta microscopica (Shumard)
USNM PAL185564
United States, Texas, Llano County
USNM:PAL
Acrotreta knoxvillensis Resser
USNM PAL39276 C. Resser
United States, Tennessee
USNM:PAL
Acrotreta primaeva Walcott
USNM PAL15342A C. Walcott
United States, Nevada, Lincoln County
USNM:PAL
Linnarssonella modesta Walcott
USNM PAL52197B
USNM:PAL
Acrotreta inflata (Matthew)
USNM PAL35276A S. Loper
Canada, New Brunswick, Saint John County
USNM:PAL
Acrothyra signata Matthew
USNM PAL52057C S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281P
USNM:PAL
Acrotreta venia Walcott
USNM PAL57565
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052N S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta spinosa Walcott
USNM PAL52176 C. Walcott
United States, Nevada
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52162B
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52077 S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Prototreta trapeza Bell
USNM PAL111865
United States, Montana
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288E
USNM:PAL
Acrotreta ophirensis rugosa Walcott
USNM PAL35282F C. Walcott
United States
USNM:PAL
Conotreta rusti Walcott
USNM PAL18443A W. Rust
United States, New York
USNM:PAL
Acrotreta pyxidicula White
USNM PAL52147D C. Walcott 1898-00-00
United States, Idaho, Oneida County
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128C C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Canthylotreta n. Robson & Pratt
USNM PAL527243
United States, South Dakota
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269F C. Walcott 1880-00-00
United States, Nevada, Eureka District
USNM:PAL
Linnarssonella modesta Walcott
USNM PAL52197E Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL185550
United States, Texas, Llano County
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35289C
USNM:PAL
Conotreta apicalis Cooper
USNM PAL116813C G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Acrotreta socialis Seebach
USNM PAL35286A G. Schmalensee
Sweden
USNM:PAL
Linnarssonia sagittalis taconica Walcott
USNM PAL17441A
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281L
USNM:PAL
Acrotreta claytoni Walcott
USNM PAL52080B
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512B
USNM:PAL
Acrotreta convexa Walcott
USNM PAL35268B S. Loper
Canada, Nova Scotia
USNM:PAL
Acrotreta eucharis Resser
USNM PAL52150B
USNM:PAL
Acrotreta atticus Walcott
USNM PAL61683
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281M
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL185553
United States, Texas, Llano County
USNM:PAL
Acrotreta idahoensis alta Walcott
USNM PAL35273A
USNM:PAL
Acrotreta gemma Billings
USNM PAL15343B
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203G
USNM:PAL
Acrotreta microscopica (Shumard)
USNM PAL52119D F. Weeks 1900-00-00
United States, Nevada, White Pine County
USNM:PAL
Linnarssonella urania Walcott
USNM PAL52202A F. Weeks
United States, Utah, Salt Lake County
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203E
USNM:PAL
Acrotreta spinosa Walcott
USNM PAL52176B C. Walcott
United States, Nevada
USNM:PAL
Eurytreta curvata (Walcott)
USNM PAL139507
United States, Nevada, Eureka County
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203S G. Schmalensee
Sweden, Christianstad Prov
USNM:PAL
Acrothyra signata prima Matthew
USNM PAL52059A S. Loper 1903-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35289D
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497159 A. Keith
Canada, Quebec
USNM:PAL
Acrotreta argenta Walcott
USNM PAL35265 F. Weeks
United States, Nevada, Esmeralda County
USNM:PAL
Acrotreta ulrichi Walcott
USNM PAL98690
United States, Missouri, Ste. Genevieve County
USNM:PAL
Acrotreta ophirensis descendens Walcott
USNM PAL52143B Walcott & Burling
United States, Utah, Millard County
USNM:PAL
Eurytreta campaniformis Krause & Rowell
USNM PAL250199 R. Ross-Jr. 1971-05-00
United States, Nevada, Nye County
USNM:PAL
Acrotreta inflata (Matthew)
USNM PAL35276A
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269L C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Angulotreta postapicalis Palmer
USNM PAL185977
United States, Texas, Blanco County
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203S
USNM:PAL
Pegmatreta rara Cooper
USNM PAL116057D
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288G
USNM:PAL
Acrotreta bellatula Walcott
USNM PAL52072D
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52161H C. Walcott 1893-00-00
United States, New York, Washington County
USNM:PAL
Eurytreta sublata Popov
USNM PAL516766 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta microscopica (Shumard)
USNM PAL52119E F. Weeks 1900-00-00
United States, Nevada, White Pine County
USNM:PAL
Acrotreta taconica (Walcott)
USNM PAL125729
USNM:PAL
Acrotreta bellatula Walcott
USNM PAL52072E
USNM:PAL
Acrotreta emmonsi Walcott
USNM PAL52087A
USNM:PAL
Linnarssonella nitens Walcott
USNM PAL52198A
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL139509
United States, South Dakota
USNM:PAL
Acrotreta gemmula Matthew
USNM PAL52088F S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Linnarssonia taconica Walcott
USNM PAL52163A C. Walcott 1886-00-00
United States, New York, Washington County
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128F C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Angulotreta triangularis Palmer
USNM PAL186033 1947-00-00
United States, Texas, Blanco County
USNM:PAL
Acrotreta conula Walcott
USNM PAL35267A C. Walcott
Sweden