USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916R
United States, Texas, Brewster County
USNM:PAL
Warsawia lateralis (Hall)
USNM PAL181171
United States, Missouri
USNM:PAL
Spirifer louisianensis Rowley
USNM PAL263401 A. Armstrong 1956-06-00
United States, New Mexico
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL154606D
United States, Texas, Brewster County
USNM:PAL
Anthracospirifer occiduus (Sadlick)
USNM PAL448952 GM-2
United States, Utah, Juab County
USNM:PAL
Spirifer leidyi Norwood & Pratten
USNM PAL98111B Butts & Pohl
United States, Virginia, Tazewell County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916D
United States, Texas, Brewster County
USNM:PAL
Spirifer rockymontanus Marcou
USNM PAL35321
USNM:PAL
Spirifer planicostatus (Swartz)
USNM PAL97942B Butts & Edmundson
United States, Virginia, Smyth County
USNM:PAL
Spirifer pellaensis Weller
USNM PAL172770 C. Butts
United States, Georgia, Chattooga County
USNM:PAL
Spirifer incertiformis Girty
USNM PAL143391
USNM:PAL
Spirifer gaspensis Billings
USNM PAL125252
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894Q
United States, Texas, Brewster County
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894E
United States, Texas, Brewster County
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152900D
United States, Texas, Brewster County
USNM:PAL
Spirifer disjuncta Sowerby
USNM PAL13841B C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Spirifer cyclopterus Hall
USNM PAL59739
USNM:PAL
Spirifer atwaterana Miller
USNM PAL51193
USNM:PAL
Spirifer mucronatus var. posterus Hall & Clarke
USNM PAL176993 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Neospirifer sp 1 Cooper
USNM PAL115497 G. Cooper
Mexico, Sonora
USNM:PAL
Eliva inflata Cooper & Grant
USNM PAL152887F
United States, New Mexico, Eddy County
USNM:PAL
Anthracospirifer Gordon
USNM PAL118809
USNM:PAL
Spirifera (Martinia) maia Billings
USNM PAL5891B
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152906G
United States, Texas, Brewster County
USNM:PAL
Spirifer rostellum Hall & Whitfield
USNM PAL51318
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152899E
United States, Texas, Brewster County
USNM:PAL
Spirifera rockymontana Marcou
USNM PAL14463
United States, Wyoming
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152912B
United States, Texas, Brewster County
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL154568F
United States, Texas, Culberson County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904Y
United States, Texas, Brewster County
USNM:PAL
Spirifer increbescens Hall
USNM PAL98112A C. Butts
United States, Virginia, Wise County
USNM:PAL
Spirifer (Martinia) glaber var. contracta Meek & Worthen
USNM PAL8483B
USNM:PAL
Spirifera camerata Morton
USNM PAL174479 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Spirifer grieri Hall
USNM PAL51192
USNM:PAL
Spirifer notabilis Kindle
USNM PAL62024C Unknown
United States, Colorado
USNM:PAL
Spirifer engelmanni Meek
USNM PAL627A
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL152905H
United States, Texas, Brewster County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152906D
United States, Texas, Brewster County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914K
United States, Texas, Brewster County
USNM:PAL
Spirifer incertiformis Girty
USNM PAL143387
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904X
United States, Texas, Brewster County
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL154602A
United States, Texas, Brewster County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916O
United States, Texas, Brewster County
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL154568H
United States, Texas, Culberson County
USNM:PAL
Spirifer (Delthyris) mesacostalis Hall
USNM PAL177416 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152909A
United States, Texas, Brewster County
USNM:PAL
Spirifer mesastrialis Hall
USNM PAL177554 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Spirifer euruteines Owen
USNM PAL51203
USNM:PAL
Anthracospirifer shawi shawi Gordon
USNM PAL163712 I. Keyte
United States, Wyoming, Fremont County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908H
United States, Texas, Brewster County
USNM:PAL
Spirifer kobehana Merriam
USNM PAL96388B Merriam
United States, Nevada, Eureka County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904V
United States, Texas, Brewster County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904N
United States, Texas, Brewster County
USNM:PAL
Spirifer tribuarius Schuchert
USNM PAL163232
USNM:PAL
Spirifer lateralis Hall
USNM PAL71635 C. Butts
United States, Alabama, Jefferson County
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL33960A A. Spencer 1898-00-00
United States, Colorado, La Plata County
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL33958
United States, Colorado
USNM:PAL
Spirifer marcyi gamma Williams
USNM PAL59619
USNM:PAL
Spirifer (Martinia) setigera Hall
USNM PAL14330
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL118588G
United States, Texas
USNM:PAL
Spirifer moorefieldanus Girty
USNM PAL185212
United States, Arkansas, Independence County
USNM:PAL
Anthracospirifer shawi exoletus Gordon
USNM PAL167755
United States, Wyoming, Fremont County
USNM:PAL
Parallelora marionensis (Hall)
USNM PAL181164
United States, Missouri
USNM:PAL
Spirifer utahensis Meek
USNM PAL626B
USNM:PAL
Spirifer tenuicostatus Hall
USNM PAL263433 A. Armstrong 1956-00-00
United States, New Mexico
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908P
United States, Texas, Brewster County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908N
United States, Texas, Brewster County
USNM:PAL
Neospirifer venezuelensis (Gerth)
USNM PAL221496 P. Hoover
Venezuela, Merida
USNM:PAL
Spirifer cameratus Morton
USNM PAL8502A Wheeler Survey 1871-00-00
United States, New Mexico
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904R
United States, Texas, Brewster County
USNM:PAL
Spirifer engelmanni Meek
USNM PAL627A
USNM:PAL
Spirifer gregeri Weller
USNM PAL154886
United States, Texas, McCulloch County
USNM:PAL
Spirifer leidyi Norwood & Pratten
USNM PAL98111A Butts & Pohl
United States, Virginia, Tazewell County
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152900A
United States, Texas, Brewster County
USNM:PAL
Spirifer (Delthyris) mesacostalis Hall
USNM PAL177316 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Anthracospirifer curvilateralis brutus Gordon
USNM PAL167738
United States, Wyoming, Lincoln County
USNM:PAL
Spirifer grimesi Hall
USNM PAL172451 C. Butts
United States, Georgia, Floyd County
USNM:PAL
Spirifer cameratus Morton
USNM PAL118716
USNM:PAL
Ectochoristites inflatus Carter
USNM PAL181004 Cooper & Cloud 1946-00-00
United States, Texas, McCulloch County
USNM:PAL
Spirifer (Delthyris) mesicostalis Hall
USNM PAL98006B Butts Et Al
United States, Virginia, Bath County
USNM:PAL
Spirifer (Delthyris) nanus (Foerste)
USNM PAL84912
USNM:PAL
Spirifera (Martinia) planoconvexa (Shumard)
USNM PAL174639 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Spirifer darwinii Morris
USNM PAL3634
USNM:PAL
Anthracospirifer shawi shawi Gordon
USNM PAL167757
United States, Wyoming, Fremont County
USNM:PAL
Spirifer striatus (Martin)
USNM PAL70633
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914L
United States, Texas, Brewster County
USNM:PAL
Spirifer striatus madisonensis Girty
USNM PAL35184B A. Gill
United States, Wyoming
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL33961 A. Spencer 1898-00-00
United States, Colorado, La Plata County
USNM:PAL
Spirifer centronatus Winchell
USNM PAL14224B
USNM:PAL
Spirifer mexicanus Shumard
USNM PAL118588E Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Spirifer macropleurus (Hall)
USNM PAL97861A Butts & Edmundson
United States, Virginia, Highland County
USNM:PAL
Anthracospirifer n Carter et al.
USNM PAL557936 E. McKee & R. Gutschick
United States, Arizona
USNM:PAL
Spirifer brazerianus Girty
USNM PAL118656
USNM:PAL
Eliva inflata Cooper & Grant
USNM PAL152887J
United States, New Mexico, Eddy County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL154613K
United States, Texas, Brewster County
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152899H
United States, Texas, Brewster County
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894L
United States, Texas, Brewster County
USNM:PAL
Anthracospirifer curvilateralis brutus Gordon
USNM PAL167736
United States, Wyoming, Lincoln County
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL152961A
United States, Texas, Culberson County
USNM:PAL
Neospirifer neali Cooper & Grant
USNM PAL154608A
United States, Texas, Culberson County