USNM:PAL
Derbyoides marathonensis Cooper & Grant
USNM PAL150425F
United States, Texas, Brewster County
USNM:PAL
Orthotetes sp a Girty
USNM PAL179853 Hill & Girty 1901-10-01
United States, Texas, Culberson County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151154H
United States, Texas, Brewster County
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314119
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151117
United States, Texas, Brewster County
USNM:PAL
Derbyia
USNM PAL729412 G. Cooper & E. Yochelson 1947-00-00
United States, Texas, Callahan County
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015L
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151158A
United States, Texas, Brewster County
USNM:PAL
Derbyia scitula Cooper & Grant
USNM PAL151202F
United States, Texas, Brewster County
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015J
United States, Texas, Brewster County
USNM:PAL
Derbyia buchi (d'Orbigny)
USNM PAL374036
Bolivia, Cochabamba Dept, Capinota Prov
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151154J
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL153297B
United States, Texas, Culberson County
USNM:PAL
Derbyia scobina Grant
USNM PAL211713 R. Grant et al.
Thailand
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL151198D
United States, Texas, Brewster County
USNM:PAL
Werriea keokuk (Hall)
USNM PAL263483
United States, Arizona, Cochise County
USNM:PAL
Derbyia cincinnata Cooper & Grant
USNM PAL151136E
United States, Texas, Brewster County
USNM:PAL
Derbyia carteri Cooper & Grant
USNM PAL153281C
United States, Texas, Brewster County
USNM:PAL
Derbyoides marathonensis Cooper & Grant
USNM PAL150425D
United States, Texas, Brewster County
USNM:PAL
Derbyia bella Cooper & Grant
USNM PAL153280A
United States, Texas, Brewster County
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL151090B
United States, Texas, Brewster County
USNM:PAL
Derbyia Gordon in McKee
USNM PAL424937
United States, Arizona
USNM:PAL
Derbyia crenulata Girty
USNM PAL179845 G. Richardson 1903-09-23
United States, Texas, Culberson County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030H
United States, Texas, Brewster County
USNM:PAL
Orthotetes kaskaskiensis (McChesney)
USNM PAL71668B C. Butts
United States, Alabama, Colbert County
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314139
USNM:PAL
Derbyia nasuta Girty
USNM PAL151038J
United States, Texas, Brewster County
USNM:PAL
Derbyia Grant
USNM PAL211714 R. Grant et al.
Thailand
USNM:PAL
Derbyia cincinnata Cooper & Grant
USNM PAL151135A
United States, Texas, Brewster County
USNM:PAL
Orthotetes subglobosus var. batesvillensis Girty
USNM PAL121210
USNM:PAL
Derbyia nasuta Girty
USNM PAL151038H
United States, Texas, Brewster County
USNM:PAL
Derbyia scobina Grant
USNM PAL211703 R. Grant et al.
Thailand
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015A
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL220998 P. Hoover
Venezuela, Merida
USNM:PAL
Derbyia scitula Cooper & Grant
USNM PAL151202H
United States, Texas, Brewster County
USNM:PAL
Orthotetes batesvillensis Girty
USNM PAL121211
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL151198B
United States, Texas, Brewster County
USNM:PAL
Orthotetes kaskaskiensis bransonorum (McChesney)
USNM PAL163729
United States, Wyoming, Fremont County
USNM:PAL
Orthotetes sp a Gordon
USNM PAL163732
United States, Wyoming, Johnson County
USNM:PAL
Derbyina smithii (Derby)
USNM PAL209030
Bolivia
USNM:PAL
Derbyoides dunbari Cooper & Grant
USNM PAL150424B
United States, Texas, Brewster County
USNM:PAL
Orthotetes batesvillensis Girty
USNM PAL121210
USNM:PAL
Derbyia texta Cooper & Grant
USNM PAL151177D
United States, Texas, Brewster County
USNM:PAL
Derbyia cincinnata Cooper & Grant
USNM PAL151143A
United States, Texas, Brewster County
USNM:PAL
Derbyoides marathonensis Cooper & Grant
USNM PAL150425C
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL153547C
United States, Texas, Presidio County
USNM:PAL
Derbyina jamesiana (Rathbun)
USNM PAL209007
Bolivia
USNM:PAL
Derbyia Stehli & Grant
USNM PAL163541 F. Stehli
Guatemala, Huehuetenango
USNM:PAL
Derbyina jamesiana (Rathbun)
USNM PAL209006
Bolivia
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015H
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151154I
United States, Texas, Brewster County
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314121 Gordon, Miser & Henbest 1961-10-23
United States, Arkansas, Washington County
USNM:PAL
Orthotetes sp a Girty
USNM PAL179854 R. Hill 1899-11-03
United States, Texas, Brewster County
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151122R
United States, Texas, Brewster County
USNM:PAL
Derbyia kaskaskiensis McChesney
USNM PAL45561
USNM:PAL
Derbyia plicatella Waagen
USNM PAL153704 Grant & Fatmi
Pakistan
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151121C
United States, Texas, Brewster County
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL153450A
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151151A
United States, Texas, Brewster County
USNM:PAL
Orthotetes declivis Girty
USNM PAL179860 Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015F
United States, Texas, Brewster County
USNM:PAL
Derbyia informis Cooper & Grant
USNM PAL151059E
United States, Texas, Brewster County
USNM:PAL
Orthotetes distortus var. campanulatus Girty
USNM PAL118493 Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Derbyoides sp 2 Cooper & Grant
USNM PAL153480B
United States, Texas, Brewster County
USNM:PAL
Derbyia
USNM PAL729407 G. Cooper & R. Grant 1957-00-00
United States, Texas, Callahan County
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151122D
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL221000 P. Hoover
Venezuela, Merida
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL151198G
United States, Texas, Brewster County
USNM:PAL
Derbyia bella Cooper & Grant
USNM PAL153189B
United States, Texas, Brewster County
USNM:PAL
Derbyia sp a Girty
USNM PAL179851 G. Richardson 1903-09-22
United States, Texas, Culberson County
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL151198F
United States, Texas, Brewster County
USNM:PAL
Orthotetes stenopsis Henry & Gordon
USNM PAL314162 Cooper & Mesler 1931-00-00
United States, Arkansas, Washington County
USNM:PAL
Werriea keokuk (Hall)
USNM PAL263479
United States, Arizona, Cochise County
USNM:PAL
Derbyia sp a Girty
USNM PAL179848 Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL153291
United States, Texas, Brewster County
USNM:PAL
Orthotetes protensus Girty
USNM PAL314149 J. Newby 1911-08-18
United States, Oklahoma, Craig County
USNM:PAL
Derbyia nasuta Girty
USNM PAL153297A
United States, Texas, Culberson County
USNM:PAL
Derbyia bella Cooper & Grant
USNM PAL151025A
United States, Texas, Brewster County
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314134
USNM:PAL
Hipparionyx Boucot
USNM PAL126150 A. Boucot 1949-08-26
United States, Maine, Somerset County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030E
United States, Texas, Brewster County
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015B
United States, Texas, Brewster County
USNM:PAL
Derbyia auriplexa Hoover
USNM PAL220984 P. Hoover
Venezuela, Merida
USNM:PAL
Derbyia texta Cooper & Grant
USNM PAL152616E
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030D
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030G
United States, Texas, Brewster County
USNM:PAL
Derbyia regularis McKee
USNM PAL102291
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL151198L
United States, Texas, Brewster County
USNM:PAL
Orthotetes stenopsis Henry & Gordon
USNM PAL314163 E. Ulrich 1902-08-28
United States, Arkansas, Searcy County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151158B
United States, Texas, Brewster County
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL220987 P. Hoover
Venezuela, Merida
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314125 Cooper, Grant & Phelan 1968-00-00
United States, Oklahoma, Mayes County
USNM:PAL
Derbyia informis Cooper & Grant
USNM PAL151066A
United States, Texas, Brewster County
USNM:PAL
Derbyia sp a Girty
USNM PAL179850 Girty 1901-00-00
United States, Texas, Culberson County
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015E
United States, Texas, Brewster County
USNM:PAL
Derbyia bella Cooper & Grant
USNM PAL153280B
United States, Texas, Brewster County
USNM:PAL
Derbyina smithii (Derby)
USNM PAL209029
Bolivia
USNM:PAL
Hipparionyx Boucot
USNM PAL127374 A. Boucot 1949-08-26
United States, Maine, Somerset County
USNM:PAL
Derbyia Grant
USNM PAL211715 R. Grant et al.
Thailand
USNM:PAL
Werriea keokuk (Hall)
USNM PAL294493
United States, Arizona, Cochise County