USNM:PAL
Neospirifer notialis Cooper & Grant
USNM PAL152910H
United States, Texas, Brewster County
USNM:PAL
Spirifer granulosus (Conrad)
USNM PAL97961B C. Butts
United States, Virginia, Shenandoah County
USNM:PAL
Spirifer gaspensis Hall
USNM PAL59747
USNM:PAL
Spirifera raricosta (Conrad)
USNM PAL13829A C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Spirifer mucronatus Conrad
USNM PAL177332 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spirifer sp a Girty
USNM PAL61965 1904-00-00
China, East Ssi-Chuan
USNM:PAL
Prospira greenockensis (Brown)
USNM PAL176856
United States, Iowa, Pocahontas County
USNM:PAL
Spirifer monticola White
USNM PAL8533
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL180882 Cross & Spencer 1898-00-00
United States, Colorado
USNM:PAL
Spirifera scobina Meek
USNM PAL644
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914Q
United States, Texas, Brewster County
USNM:PAL
Eliva inflata Cooper & Grant
USNM PAL152887K
United States, New Mexico, Eddy County
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL152905A
United States, Texas, Brewster County
USNM:PAL
Spirifer pseudocameratus Girty
USNM PAL121689
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152899C
United States, Texas, Brewster County
USNM:PAL
Spirifer rockymontanus Marcou
USNM PAL181192 Wheeler Survey 1871-00-00
United States, Utah
USNM:PAL
Spirifer (Martinia) glaber var. contracta Meek & Worthen
USNM PAL8483B Wheeler Survey
United States, Nevada, Lincoln County
USNM:PAL
Spirifer mucronatus var. posterus Hall & Clarke
USNM PAL176994 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Spirifera (Martinia) maia Billings
USNM PAL5891A
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152912E
United States, Texas, Brewster County
USNM:PAL
Spirifer macra (Hall)
USNM PAL126733 R. Finks
United States, New York, Orange County
USNM:PAL
Spirifer Meek
USNM PAL25678
USNM:PAL
Fusella llanoensis Carter
USNM PAL154841
United States, Texas, McCulloch County
USNM:PAL
Spirifer arkansanus Girty
USNM PAL141388
United States, Arkansas, Independence County
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL154567A
United States, Texas, Culberson County
USNM:PAL
Neospirifer notialis Cooper & Grant
USNM PAL152910I
United States, Texas, Brewster County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904K
United States, Texas, Brewster County
USNM:PAL
Spirifer concinnus Hall
USNM PAL81573
USNM:PAL
Anthracospirifer curvilateralis brutus Gordon
USNM PAL167740
United States, Wyoming, Lincoln County
USNM:PAL
Spirifer cameratus Morton
USNM PAL9164A C. White
United States, Missouri
USNM:PAL
Spirifer incertiformis Girty
USNM PAL143389
USNM:PAL
Spirifer modestus Hall
USNM PAL97677
USNM:PAL
Spirifer mexicanus var. compactus Girty
USNM PAL179789 Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Anthracospirifer rawlinsensis Gordon
USNM PAL167750
United States, Wyoming, Carbon County
USNM:PAL
Spirifer planicostatus (Swartz)
USNM PAL97942A Butts & Edmundson
United States, Virginia, Smyth County
USNM:PAL
Spirifer (Eospirifer) niagarensis (Conrad)
USNM PAL177488 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spirifer chappelensis Carter
USNM PAL154823
United States, Texas, McCulloch County
USNM:PAL
Spirifer utahensis Meek
USNM PAL626C
USNM:PAL
Imbrexia imbrex (Hall)
USNM PAL181160
United States, Missouri, Pike County
USNM:PAL
Spirifer anchiasper Williams
USNM PAL89757
USNM:PAL
Spirifer leidyi Norwood & Pratten
USNM PAL98111C Butts & Pohl
United States, Virginia, Tazewell County
USNM:PAL
Spirifer marcyi var. superstes Clarke & Swartz
USNM PAL177043 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL152905P
United States, Texas, Brewster County
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL33960B A. Spencer 1898-00-00
United States, Colorado, La Plata County
USNM:PAL
Spirifer mexicanus Shumard
USNM PAL118588A Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Spirifer kobehana Merriam
USNM PAL96387 Merriam
United States, Nevada, Eureka County
USNM:PAL
Spirifer compactus Meek
USNM PAL13840
USNM:PAL
Spirifer striatiformis Herrick
USNM PAL98051B Butts & Pohl
United States, Virginia, Tazewell County
USNM:PAL
Neospirifer placidus Cooper & Grant
USNM PAL153276O
United States, Texas, Brewster County
USNM:PAL
Spirifer mucronatus Conrad
USNM PAL97952A Butts Et Al
United States, Virginia, Shenandoah County
USNM:PAL
Neospirifer latus Dunbar & Condra
USNM PAL263350 J. Gehrig 1953-07-00
United States, New Mexico, Sierra County
USNM:PAL
Spirifer duodenarius (Hall)
USNM PAL97937C Butts & Edmundson
United States, Virginia, Smyth County
USNM:PAL
Spirifer perlamellosus var. praenuntius Swartz
USNM PAL81532
USNM:PAL
Spirifer cyclopterus Hall
USNM PAL59740
USNM:PAL
Spirifer (Eospirifer) eudora Hall
USNM PAL177512 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916C
United States, Texas, Brewster County
USNM:PAL
Spirifer vespertilio Sowerby
USNM PAL3596
USNM:PAL
Neospirifer venezuelensis (Gerth)
USNM PAL221498 P. Hoover
Venezuela, Merida
USNM:PAL
Spirifer (Trigonotreta) argentarius Meek
USNM PAL124506
USNM:PAL
Spirifer planicostatus (Swartz)
USNM PAL97942C Butts & Edmundson
United States, Virginia, Smyth County
USNM:PAL
Spirifer sp b Girty
USNM PAL179808 R. Hill 1899-11-03
United States, Texas, Brewster County
USNM:PAL
Spirifer euryteines milwaukeensis Cleland
USNM PAL353216
United States, Wisconsin
USNM:PAL
Spirifer macra (Hall)
USNM PAL126735C R. Finks
United States, New York, Orange County
USNM:PAL
Neospirifer bakeri bakeri Cooper & Grant
USNM PAL154613C
United States, Texas, Brewster County
USNM:PAL
Spirifer (Eospirifer) radiatus (Sowerby)
USNM PAL62299
USNM:PAL
Spirifer (Syringothyris) extenuatus Hall
USNM PAL181309 Wheeler Survey 1871-00-00
United States, Nevada
USNM:PAL
Spirifer (Trigonotreta) argentarius Meek
USNM PAL124507
USNM:PAL
Spirifera camerata Morton
USNM PAL174490 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Warsawia lateralis (Hall)
USNM PAL181177
United States, Missouri
USNM:PAL
Spirifer macra (Hall)
USNM PAL125924 R. Finks
United States, New York, Orange County
USNM:PAL
Anthracospirifer welleri lincolnensis Gordon
USNM PAL167759
United States, Wyoming, Lincoln County
USNM:PAL
Spirifer concinnus progradius Swartz
USNM PAL97858B Butts & Oder
United States, Virginia, Craig County
USNM:PAL
Neospirifer notialis Cooper & Grant
USNM PAL152910G
United States, Texas, Brewster County
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL33962 T. Stanton 1889-00-00
United States, Colorado
USNM:PAL
Spirifer maecuruensis Rathbun
USNM PAL24381
USNM:PAL
Neospirifer neali Cooper & Grant
USNM PAL152915G
United States, Texas, Brewster County
USNM:PAL
Spirifer (Martinia) lineatus Martin
USNM PAL135223
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894J
United States, Texas, Brewster County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916J
United States, Texas, Brewster County
USNM:PAL
Spirifer disjuncta Sowerby
USNM PAL13841 C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Anthracospirifer tanoensis Sutherland & Harlow
USNM PAL476643 J. Johnson 1930-07-00
United States, Colorado, Park County
USNM:PAL
Spirifer edmundsi Williams
USNM PAL61453
USNM:PAL
Spirifer (Eospirifer) eudora Hall
USNM PAL178481 Maryland Geological Survey
United States, West Virginia, Morgan County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904G
United States, Texas, Brewster County
USNM:PAL
Spirifer mexicanus Shumard
USNM PAL180386 Girty 1901-00-00
United States, Texas, Culberson County
USNM:PAL
Spirifer audaculus (Conrad)
USNM PAL177467 Maryland Geological Survey
United States, Maryland
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL154602G
United States, Texas, Brewster County
USNM:PAL
Spirifer arenosus (Conrad)
USNM PAL59736
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914I
United States, Texas, Brewster County
USNM:PAL
Spirifera striata (Martin)
USNM PAL14455 J. Clayton
United States, Utah
USNM:PAL
Unispirifer lateralis (Hall)
USNM PAL263464
United States, Arizona, Cochise County
USNM:PAL
Spirifera camerata Morton
USNM PAL174593 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Spirifer arenosa (Conrad)
USNM PAL124505
USNM:PAL
Spirifera pinonensis Meek
USNM PAL13830A C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Spirifer arkansanus Girty
USNM PAL185211 G. Girty 1908-10-18
United States, Arkansas
USNM:PAL
Spirifer paucicostatus Schuchert
USNM PAL61738
USNM:PAL
Spirifer segmenta Hall
USNM PAL51219
USNM:PAL
Neospirifer praenuntius Easton
USNM PAL167764
United States, Wyoming, Teton County
USNM:PAL
Spirifer keokuk Hall
USNM PAL71545 C. Butts
United States, Alabama
USNM:PAL
Spirifer Armstrong
USNM PAL263425 A. Armstrong 1956-06-00
United States, New Mexico