USNM:PAL
Conotreta gigantea Cooper
USNM PAL117968A G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052R S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Linnarssonella modesta Walcott
USNM PAL52197B Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Acrotreta bellatula Walcott
USNM PAL52072A Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52161F C. Walcott 1893-00-00
United States, New York, Washington County
USNM:PAL
Acrothyra minor Walcott
USNM PAL52050A
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287I
USNM:PAL
Acrotreta knoxvillensis Resser
USNM PAL35288F
USNM:PAL
Spondylotreta concentrica Cooper
USNM PAL116826A G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Acrotreta microscopica tetonensis Walcott
USNM PAL35280B C. Walcott
United States, Wyoming, Uinta County
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52073D
USNM:PAL
Acrotreta buttsi Resser
USNM PAL94778A C. Resser
United States, Virginia
USNM:PAL
Acrotreta sagittalis magna (Matthew)
USNM PAL35284A Matthew & Walcott
Canada, New Brunswick, Saint John County
USNM:PAL
Acrotreta sagittalis taconica (Walcott)
USNM PAL52163C C. Walcott
United States, New York, Washington County
USNM:PAL
Angulotreta microscopica (Shumard)
USNM PAL185562
United States, Texas, San Saba County
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269I
USNM:PAL
Acrotreta nox Walcott
USNM PAL52132A
USNM:PAL
Acrothyra
USNM PAL280989 C. Walcott
Canada, British Columbia
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269O
USNM:PAL
Acrotreta primaeva Walcott
USNM PAL52061B C. Walcott
United States, Nevada, Lincoln County
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269J
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288B C. Walcott
United States, Tennessee, Knox County
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281B
USNM:PAL
Acrotreta microscopica tetonensis Walcott
USNM PAL35280A C. Walcott
United States, Wyoming, Uinta County
USNM:PAL
Acrotreta attica Walcott
USNM PAL140752J
USNM:PAL
Acrotreta depressa Walcott
USNM PAL52086C
USNM:PAL
Acrotreta neboensis Walcott
USNM PAL52130B
USNM:PAL
Canthylotreta n. Robson & Pratt
USNM PAL527255
United States, South Dakota
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281F C. Walcott
United States, Utah, Tooele County
USNM:PAL
Conotreta millardensis Popov et al.
USNM PAL516716 J. Miller
United States, Utah, Millard County
USNM:PAL
Eurytreta sublata Popov
USNM PAL516770 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta gemma Billings
USNM PAL35273A
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52073C S. Loper
Canada, Nova Scotia
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281I C. Walcott
United States, Utah, Tooele County
USNM:PAL
Acrotreta primaeva Walcott
USNM PAL15342E C. Walcott
United States, Nevada, Lincoln County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287H C. Walcott
United States, South Dakota, Lawrence County
USNM:PAL
Canthylotreta n. Robson & Pratt
USNM PAL527253
United States, South Dakota
USNM:PAL
Acrotreta sagittalis (Salter)
USNM PAL52156C G. Schmalensee 1900-00-00
Sweden, Christianstad Prov
USNM:PAL
Conotreta multisinuata Cooper
USNM PAL109746A G. Cooper
United States, Virginia
USNM:PAL
Linnarssonella transversa Walcott
USNM PAL52201B Walcott, Weeks & Burling
United States, Utah, Millard County
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL35277C
USNM:PAL
Eurytreta sublata Popov
USNM PAL516774 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrothyra gregaria Walcott
USNM PAL280974 C. Walcott
Canada, British Columbia
USNM:PAL
Acrothyra
USNM PAL280991 C. Walcott
Canada, British Columbia
USNM:PAL
Acrotreta ulrichi Walcott
USNM PAL520025
United States, Missouri, Ste. Genevieve County
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497150 A. Keith
Canada, Quebec
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269H
USNM:PAL
Conotreta depressa Cooper
USNM PAL116815C G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269A C. Walcott 1880-00-00
United States, Nevada, Eureka District
USNM:PAL
Acrotreta argenta Walcott
USNM PAL35265C
United States, Nevada, Esmeralda County
USNM:PAL
Linnarssonella elongata Bell
USNM PAL140666E Shell Development Co.
United States, Montana, Mccone County
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512D
USNM:PAL
Acrotreta primaeva Walcott
USNM PAL15343A C. Walcott
United States, Nevada, Lincoln County
USNM:PAL
Linnarssonella urania Walcott
USNM PAL52202B F. Weeks
United States, Utah, Salt Lake County
USNM:PAL
Acrotreta attenuata Meek
USNM PAL52063B
USNM:PAL
Acrotreta gracia Walcott
USNM PAL35272B
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269C C. Walcott
United States, Nevada, Eureka County
USNM:PAL
Acrotreta bisecta Matthew
USNM PAL52073B S. Loper
Canada, Nova Scotia
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281H C. Walcott
United States, Utah, Tooele County
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269F
USNM:PAL
Conotreta multisinuata Cooper
USNM PAL109739B G. Cooper
United States, Tennessee
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287C C. Walcott
United States, South Dakota, Lawrence County
USNM:PAL
Acrotreta orientalis Resser & Endo
USNM PAL86696 R. Endo
China, Manchoukuo Prov
USNM:PAL
Canthylotreta marjumensis (Walcott)
USNM PAL139498
United States, Utah, Millard County
USNM:PAL
Acrothyra urania (Walcott)
USNM PAL139493
United States, Utah, Salt Lake County
USNM:PAL
Acrotreta pyxidicula White
USNM PAL52150B
United States, Idaho, Bear Lake County
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269E
USNM:PAL
Acrotreta attenuata Meek
USNM PAL52069B Walcott, Weeks & Burling 1903-00-00
United States, Utah, Millard County
USNM:PAL
Eurytreta bisecta (Matthew)
USNM PAL516746 J. Miller
United States, Utah, Millard County
USNM:PAL
Acrotreta microscopica missouriensis Walcott
USNM PAL35278C
USNM:PAL
Acrotreta idahoensis Walcott
USNM PAL52091I
USNM:PAL
Acrotreta pacifica Walcott
USNM PAL52506B Blackwelder
China, Shantung
USNM:PAL
Acrotreta shantungensis Walcott
USNM PAL52512C
USNM:PAL
Eurytreta fillmorensis Holmer et al.
USNM PAL526149
United States, Utah, Millard County
USNM:PAL
Acrotreta buttsi Resser
USNM PAL94778B C. Resser
United States, Virginia
USNM:PAL
Acrotreta rara Howell
USNM PAL532076 B. Howell, C. Howell & B. Howell-Jr.
United States, Vermont, Franklin County
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052M S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta kutorgai Walcott
USNM PAL35277B
USNM:PAL
Acrotreta ophirensis Walcott
USNM PAL35281C
USNM:PAL
Acrotreta ophirensis rugosa Walcott
USNM PAL35282A
USNM:PAL
Acrotreta metisensis Howell
USNM PAL497164 A. Keith
Canada, Quebec
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269L
United States, Nevada
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269J
USNM:PAL
Angulotreta microscopica var. digitalis Bell in Bell & Ellinwood
USNM PAL185561
United States, Texas, Llano County
USNM:PAL
Linnarssonella urania Walcott
USNM PAL52202A
USNM:PAL
Linnarssonella tennesseensis Walcott
USNM PAL35288F C. Walcott
United States, Tennessee, Knox County
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL35287M
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203G G. Schmalensee
Sweden, Christianstad Prov
USNM:PAL
Linnarssonella minuta (Hall & Whitfield)
USNM PAL24553C
USNM:PAL
Acrotreta schmalenseei Walcott
USNM PAL18203M G. Schmalensee
Sweden, Christianstad Prov
USNM:PAL
Acrothyra gregaria Walcott
USNM PAL280969 C. Walcott
Canada, British Columbia
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269I C. Walcott 1880-00-00
United States, Nevada, Eureka District
USNM:PAL
Linnarssonella girtyi Walcott
USNM PAL139511
United States, South Dakota
USNM:PAL
Acrotreta gemma Billings
USNM PAL35269M C. Walcott 1880-00-00
United States, Nevada, Eureka District
USNM:PAL
Acrotreta microscopica (Shumard)
USNM PAL52120D C. Walcott 1884-00-00
United States, Texas, Burnet County
USNM:PAL
Acrothyra proavia (Matthew)
USNM PAL52052 S. Loper 1901-00-00
Canada, Nova Scotia, Cape Breton
USNM:PAL
Acrotreta curvata Walcott
USNM PAL35269B
USNM:PAL
Acrotreta orientalis Resser & Endo
USNM PAL86695 R. Endo
China, Manchoukuo Prov
USNM:PAL
Acrothyra minor Walcott
USNM PAL52050C
USNM:PAL
Acrothyra urania (Walcott)
USNM PAL139492
United States, Utah, Salt Lake County