USNM:PAL
Spirifer tullius Hall
USNM PAL174173 Ellison
United States, Pennsylvania, Huntingdon County
USNM:PAL
Spirifer byrnesi Nettelroth
USNM PAL51199
USNM:PAL
Spirifera engelmanni Meek
USNM PAL627
USNM:PAL
Spirifer martiniiformis Girty
USNM PAL143394
USNM:PAL
Spirifer cuspidatus (Martin)
USNM PAL14230A C. King
United States, Nevada, White Pine District
USNM:PAL
Spirifera (Martinia) undifera (Roemer)
USNM PAL13839 C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904H
United States, Texas, Brewster County
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL154601A
United States, Texas, Brewster County
USNM:PAL
Spirifera (Martinia) perplexa McChesney
USNM PAL174550 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Spirifer (Delthyris) mesicostalis Hall
USNM PAL98007A C. Butts
United States, Virginia, Shenandoah County
USNM:PAL
Neospirifer placidus Cooper & Grant
USNM PAL153276G
United States, Texas, Brewster County
USNM:PAL
Spirifer iowensis Owen
USNM PAL136802
USNM:PAL
Parallelora marionensis (Hall)
USNM PAL181161
United States, Missouri, Pike County
USNM:PAL
Spirifer euruteines fornacula Cleland
USNM PAL136817
USNM:PAL
Spirifer Cressler
USNM PAL162568 C. Cressler
United States, Georgia, Polk County
USNM:PAL
Spirifer acuminata (Conrad)
USNM PAL135211
USNM:PAL
Spirifer logani Hall
USNM PAL71604B C. Butts
United States, Alabama
USNM:PAL
Neospirifer placidus Cooper & Grant
USNM PAL153276L
United States, Texas, Brewster County
USNM:PAL
Prospira greenockensis (Brown)
USNM PAL176850
United States, Iowa, Pocahontas County
USNM:PAL
Unispirifer vernonensis (Swallow)
USNM PAL263458
United States, Arizona, Cochise County
USNM:PAL
Spirifer macrus Hall
USNM PAL97913 Butts & Edmundson
United States, Virginia, Smyth County
USNM:PAL
Spirifer (Delthyris) mesicostalis Hall
USNM PAL98007B C. Butts
United States, Virginia, Shenandoah County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL154615A
United States, Texas, Brewster County
USNM:PAL
Spirifer mucronatus Conrad
USNM PAL177002 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Spirifer blackwelderi Girty
USNM PAL183550
USNM:PAL
Spirifer curvilateralis Easton
USNM PAL118806B
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908L
United States, Texas, Brewster County
USNM:PAL
Spirifer mucronatus Conrad
USNM PAL97953 C. Butts
United States, Virginia, Frederick County
USNM:PAL
Spirifer bifurcatus Hall
USNM PAL98076A Butts & Pohl
United States, Virginia, Tazewell County
USNM:PAL
Spirifer striatiformis Meek
USNM PAL98065 C. Butts
United States, Kentucky, Rowan County
USNM:PAL
Spirifer (Eospirifer) radiatus (Sowerby)
USNM PAL84909
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152902A
United States, Texas, Brewster County
USNM:PAL
Spirifer granulosus (Conrad)
USNM PAL168905
United States, Maryland, Allegany County
USNM:PAL
Spirifer glaber (Martin)
USNM PAL3663
USNM:PAL
Spirifer louisianensis Rowley
USNM PAL263408 A. Armstrong
United States, New Mexico
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL152905G
United States, Texas, Brewster County
USNM:PAL
Spirifer boonensis Swallow
USNM PAL35318
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916E
United States, Texas, Brewster County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152909S
United States, Texas, Brewster County
USNM:PAL
Spirifer striatiformis Herrick
USNM PAL98051A Butts & Pohl
United States, Virginia, Tazewell County
USNM:PAL
Spirifer whitneyi Hall
USNM PAL62030 Unknown
United States, Colorado
USNM:PAL
Spirifer (Martinia) glaber var. contracta Meek & Worthen
USNM PAL8483B
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914P
United States, Texas, Brewster County
USNM:PAL
Spirifer winchelli Herrick
USNM PAL98049B Butts & Pohl
United States, Virginia, Tazewell County
USNM:PAL
Spirifer geronticus Foerste
USNM PAL86978
USNM:PAL
Spirifer (Trigonotreta) scobina Meek
USNM PAL644B
USNM:PAL
Spirifer kobehana Merriam
USNM PAL96388A Merriam
United States, Nevada, Eureka County
USNM:PAL
Spirifer mexicanus var. compactus Girty
USNM PAL118590B Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Spirifer subvaricosus Hall & Whitfield
USNM PAL353220
United States, Wisconsin
USNM:PAL
Spirifer cameratus Morton
USNM PAL120942
USNM:PAL
Spirifer organensis Shumard
USNM PAL135226
USNM:PAL
Spirifer euruteines fornacula Hall
USNM PAL51204
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152909M
United States, Texas, Brewster County
USNM:PAL
Fusella llanoensis Carter
USNM PAL154844
United States, Texas, San Saba County
USNM:PAL
Spirifer louisianensis Rowley
USNM PAL278852 A. Armstrong
United States, New Mexico
USNM:PAL
Spirifer sp 1 Cooper & Cloud
USNM PAL95182A Cooper & Cloud
United States, Illinois, Calhoun County
USNM:PAL
Spirifer (Delthyris) keyserensis Swartz
USNM PAL177061 Maryland Geological Survey
United States, West Virginia, Mineral County
USNM:PAL
Spirifera (Martinia) undifera (Roemer)
USNM PAL13873 C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Spirifer pseudocameratus Girty
USNM PAL121687
USNM:PAL
Anthracospirifer occiduus (Sadlick)
USNM PAL118717A
USNM:PAL
Spirifer mucronatus var. posterus Hall & Clarke
USNM PAL177300 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Spirifer tribuarius Schuchert
USNM PAL62966
USNM:PAL
Spirifer disjunctus Girty
USNM PAL177326 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spirifer (Martinia) peculiaris Shumard
USNM PAL8537
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916W
United States, Texas, Brewster County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908O
United States, Texas, Brewster County
USNM:PAL
Spirifer opimus var. occidentalis Girty
USNM PAL167743
USNM:PAL
Spirifer mexicanus Girty
USNM PAL179809 Girty 1901-00-00
United States, Texas, Culberson County
USNM:PAL
Spirifer (Trigonotreta) argentarius Meek
USNM PAL124508
USNM:PAL
Spirifer Cleland
USNM PAL85970
USNM:PAL
Spirifera (Martinia) planoconvexa (Shumard)
USNM PAL174661 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Anthracospirifer occiduus f. b Gordon
USNM PAL167746
United States, Wyoming, Teton County
USNM:PAL
Spirifer (Martinia) glaber var. contracta Meek & Worthen
USNM PAL8483A Wheeler Survey
United States, Nevada, Lincoln County
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL152961D
United States, Texas, Culberson County
USNM:PAL
Spirifer triplicata Hall
USNM PAL15063
USNM:PAL
Spirifer concinnus Hall
USNM PAL59730
USNM:PAL
Neospirifer venezuelensis venezuelensis (Gerth)
USNM PAL221499
Venezuela, Merida
USNM:PAL
Spirifer increbescens Hall
USNM PAL121233
USNM:PAL
Spirifer pseudocameratus Girty
USNM PAL121691
USNM:PAL
Eliva inflata Cooper & Grant
USNM PAL152887D
United States, New Mexico, Eddy County
USNM:PAL
Prospira greenockensis (Brown)
USNM PAL176849
United States, Iowa, Pocahontas County
USNM:PAL
Parallelora marionensis (Hall)
USNM PAL181162
United States, Missouri, Pike County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152906B
United States, Texas, Brewster County
USNM:PAL
Prospira greenockensis (Brown)
USNM PAL176853
United States, Iowa, Pocahontas County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152909D
United States, Texas, Brewster County
USNM:PAL
Spirifer rockymontanus Marcou
USNM PAL181193 Wheeler Survey 1871-00-00
United States, Utah
USNM:PAL
Spirifer utahensis Meek
USNM PAL626A
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908J
United States, Texas, Brewster County
USNM:PAL
Spirifer multistriatus Gunnell
USNM PAL137562
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL154602C
United States, Texas, Brewster County
USNM:PAL
Spirifer gaspensis Billings
USNM PAL56706
USNM:PAL
Spirifer (Eospirifer) radiatus (Sowerby)
USNM PAL53218
USNM:PAL
Spirifer granulosus var. sigma (Conrad)
USNM PAL59625
USNM:PAL
Spirifer concinnus progradius Swartz
USNM PAL97858A Butts & Oder
United States, Virginia, Craig County
USNM:PAL
Spirifer macropleurus (Hall)
USNM PAL61802
USNM:PAL
Spirifer (Trigonotreta) pinonensis Meek
USNM PAL124501
USNM:PAL
Spirifer angularis Schuchert
USNM PAL81571
USNM:PAL
Spirifer cyclopterus Hall
USNM PAL56704
USNM:PAL
Spirifer (Delthyris) crispus Hall
USNM PAL177518 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spirifera (Martinia) maia Billings
USNM PAL5891C