USNM:PAL
Acrotreta teres Resser & Endo
USNM PAL86700C R. Endo
China, Manchoukuo Prov
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270H Spence
United States, Idaho, Bear Lake County
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52164A C. Walcott 1891-00-00
United States, New York, Washington County
USNM:PAL
Acrotreta concentrica Walcott
USNM PAL35266C
USNM:PAL
Linnarssonella minuta (Hall & Whitfield)
USNM PAL24553B C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Acrothyra
USNM PAL280998 C. Walcott
Canada, British Columbia
USNM:PAL
Angulotreta microscopica (Shumard)
USNM PAL185567
United States, Texas, Burnet County
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203F G. Schmalensee
Sweden, Christianstad Prov
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL35277G C. Walcott
United States, Alabama, Cherokee County
USNM:PAL
Acrotreta sulcata (Walcott)
USNM PAL52109B Walcott & Burling 1906-00-00
United States, Idaho, Oneida County
USNM:PAL
Acrotreta rudis Walcott
USNM PAL94812 C. Resser
United States, Virginia
USNM:PAL
Acrotreta gemmula Matthew
USNM PAL52088A S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta neboensis Walcott
USNM PAL52130A
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052J S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta claytoni Walcott
USNM PAL52081A
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512A
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270H
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281E C. Walcott
United States, Utah, Tooele County
USNM:PAL
Physotreta spinosa (Walcott)
USNM PAL139529
United States, Nevada, Eureka County
USNM:PAL
Angulotreta triangularis Palmer
USNM PAL186029 1947-00-00
United States, Texas, Blanco County
USNM:PAL
Eurytreta curvata (Walcott)
USNM PAL139508
United States, Nevada, Eureka County
USNM:PAL
Acrotreta levata Resser
USNM PAL52108
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287D
USNM:PAL
Acrotreta idahoensis Walcott
USNM PAL52090A
United States, South Dakota
USNM:PAL
Acrotreta gadsdenensis Resser
USNM PAL94991 C. Resser
United States, Alabama
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270B Spence
United States, Idaho, Bear Lake County
USNM:PAL
Acrotreta microscopica (Shumard)
USNM PAL52118 C. Walcott 1884-00-00
United States, Texas, Burnet County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287E C. Walcott
United States, South Dakota, Lawrence County
USNM:PAL
Acrotreta microscopica (Shumard)
USNM PAL52118A C. Walcott 1884-00-00
United States, Texas, Burnet County
USNM:PAL
Physotreta spinosa (Walcott)
USNM PAL139526
United States, Nevada, Eureka County
USNM:PAL
Conotreta multisinuata Cooper
USNM PAL109742R G. Cooper
United States, Virginia, Bland County
USNM:PAL
Acrotreta definita Walcott
USNM PAL35270E Spence
United States, Idaho, Bear Lake County
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269K
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL203722
United States, Missouri, St. Francois County
USNM:PAL
Linnarssonella minuta (Hall & Whitfield)
USNM PAL24553D
USNM:PAL
Acrothyra gregaria Walcott
USNM PAL280982 C. Walcott
Canada, British Columbia
USNM:PAL
Acrothyra sera (Matthew)
USNM PAL52055B S. Loper 1903-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281Q C. Walcott
United States, Utah, Tooele County
USNM:PAL
Acrotreta pyxidicula White
USNM PAL8570B
USNM:PAL
Acrotreta pyxidicula White
USNM PAL52149A C. Walcott 1905-00-00
United States, Montana, Gallatin County
USNM:PAL
Eurytreta bisecta (Matthew)
USNM PAL516743 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrothyra sera (Matthew)
USNM PAL51405 S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta pergracilis Resser & Endo
USNM PAL86698D R. Endo
China, Manchoukuo Prov
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287G C. Walcott
United States, South Dakota, Lawrence County
USNM:PAL
Acrotreta idahoensis Walcott
USNM PAL52089F
USNM:PAL
Acrotreta primaeva Walcott
USNM PAL15343C C. Walcott
United States, Nevada, Lincoln County
USNM:PAL
Acrothyra minor Walcott
USNM PAL52050A
USNM:PAL
Angulotreta microscopica (Shumard)
USNM PAL185571
United States, Texas, San Saba County
USNM:PAL
Acrotreta idahoensis alta Walcott
USNM PAL35273C C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL52201A Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Physotreta spinosa (Walcott)
USNM PAL139527
United States, Nevada, Eureka County
USNM:PAL
Acrotreta gemma Billings
USNM PAL35273C
United States, Nevada
USNM:PAL
Acrotreta pacifica Walcott
USNM PAL52506A
USNM:PAL
Linnarssonia taconica Walcott
USNM PAL52162B C. Walcott 1886-00-00
United States, New York, Washington County
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203L
USNM:PAL
Acrotreta teres Resser & Endo
USNM PAL86700A R. Endo
China, Manchoukuo Prov
USNM:PAL
Conotreta depressa Cooper
USNM PAL116815B G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288H C. Walcott
United States, Tennessee, Knox County
USNM:PAL
Acrotreta gadsdenensis Resser
USNM PAL94991A C. Resser
United States, Alabama
USNM:PAL
Eurytreta sublata Popov
USNM PAL516765 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512C Blackwelder & Willis
China, Shantung
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL98693A
United States, Missouri, St. Francois County
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35289A
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287J
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052L S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta sagittalis (Salter)
USNM PAL52156D G. Schmalensee 1900-00-00
Sweden, Christianstad Prov
USNM:PAL
Acrotreta sagittalis transversa (Hartt)
USNM PAL52160I C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35289A C. Walcott
United States, Tennessee, Roane County
USNM:PAL
Conotreta millardensis Popov et al.
USNM PAL516718 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta sagittalis magna (Matthew)
USNM PAL35284D
USNM:PAL
Acrotreta rudis Walcott
USNM PAL52112B
USNM:PAL
Acrotreta sagittalis (Salter)
USNM PAL52152A C. Walcott 1899-00-00
Canada, Newfoundland
USNM:PAL
Acrotreta pileata Resser & Endo
USNM PAL86697B R. Endo
China, Manchoukuo Prov
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL35277G
USNM:PAL
Acrotreta gemma Billings
USNM PAL15343C U.S. Geological Survey
United States, Nevada, Lincoln County
USNM:PAL
Acrotreta Walcott
USNM PAL182784
USNM:PAL
Acrothyra gregaria Walcott
USNM PAL280975 C. Walcott
Canada, British Columbia
USNM:PAL
Acrotreta parahioensis Reed
USNM PAL486710 H. Hayden
India
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL140665I Shell Development Co.
United States, Montana, Mccone County
USNM:PAL
Acrotreta nitens Resser & Endo
USNM PAL86701C R. Endo
China, Manchoukuo Prov
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269B C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Acrothyra
USNM PAL280994 C. Walcott
Canada, British Columbia
USNM:PAL
Acrotreta bellatula Walcott
USNM PAL52072B Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Eurytreta bisecta (Matthew)
USNM PAL516757 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta depressa Walcott
USNM PAL52086A
USNM:PAL
Acrotreta ophirensis rugosa Walcott
USNM PAL35282D
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL203726
United States, Missouri, St. Francois County
USNM:PAL
Acrothyra gregaria Walcott
USNM PAL69828 Walcott Et Al 1910-00-00
Canada, British Columbia
USNM:PAL
Acrotreta marjumensis Walcott
USNM PAL52116C Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Acrotreta misera (Billings)
USNM PAL52128O C. Walcott 1888-00-00
Canada, Newfoundland
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL98694B
United States, Missouri, Ste. Genevieve County
USNM:PAL
Genus Robson & Pratt
USNM PAL527244
United States, South Dakota
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203T G. Schmalensee
Sweden, Christianstad Prov
USNM:PAL
Acrotreta rudis Walcott
USNM PAL94812A C. Resser
United States, Virginia
USNM:PAL
Conotreta multisinuata Cooper
USNM PAL109740 G. Cooper
United States, Virginia
USNM:PAL
Acrotreta microscopica missouriensis Walcott
USNM PAL35278C C. Walcott
United States, Missouri, St. Francois County
USNM:PAL
Acrotreta pergracilis Resser & Endo
USNM PAL86698B R. Endo
China, Manchoukuo Prov
USNM:PAL
Acrotreta argenta Walcott
USNM PAL35265C
USNM:PAL
Linnarssonella urania Walcott
USNM PAL52202D
USNM:PAL
Acrotreta sagittalis (Salter)
USNM PAL93064A Mertie 1930-00-00
United States, Alaska