USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152913B
United States, Texas, Brewster County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152912F
United States, Texas, Brewster County
USNM:PAL
Spirifer cameratus Morton
USNM PAL181234 Wheeler Survey 1871-00-00
United States, Arizona, Maricopa County
USNM:PAL
Spirifer louisianensis Rowley
USNM PAL278853 A. Armstrong
United States, New Mexico
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL152905C
United States, Texas, Brewster County
USNM:PAL
Neospirifer sp 1 Cooper
USNM PAL126984B University of Oregon
United States, Oregon
USNM:PAL
Spirifer (Trigonotreta) argentarius Meek
USNM PAL124513
USNM:PAL
Spirifer Girty
USNM PAL144823 S. Penfield
United States, Wyoming
USNM:PAL
Anthracospirifer tanoensis Sutherland & Harlow
USNM PAL476644 O. Tweto 1953-00-00
United States, Colorado, Park County
USNM:PAL
Spirifera setigera Hall
USNM PAL14229B J. Clayton
United States, Utah
USNM:PAL
Fusella llanoensis Carter
USNM PAL154840
United States, Texas, McCulloch County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152909E
United States, Texas, Brewster County
USNM:PAL
Spirifera (Martinia) planoconvexa Shumard
USNM PAL1047B 1855-11-12
United States, South Dakota
USNM:PAL
Spirifer multistriatus Gunnell
USNM PAL138321
USNM:PAL
Spirifer (Syringothyris) extenuatus Hall
USNM PAL8540 Wheeler Survey 1871-00-00
United States, Nevada
USNM:PAL
Neospirifer dunbari King
USNM PAL134566
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152899I
United States, Texas, Brewster County
USNM:PAL
Spirifer (Cyrtina) aspera Hall
USNM PAL136796
USNM:PAL
Spirifer whitneyi animasensis (Girty)
USNM PAL62033A Unknown
United States, Colorado
USNM:PAL
Spirifer varicosus Hall
USNM PAL51202
USNM:PAL
Spirifer whitneyi animasensis (Girty)
USNM PAL62032 Unknown
United States, New Mexico
USNM:PAL
Spirifer pauliformis Williams
USNM PAL89769
USNM:PAL
Spirifer nobilis Barrande
USNM PAL93028
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894D
United States, Texas, Brewster County
USNM:PAL
Spirifer (Delthyris) mesacostalis Hall
USNM PAL177414 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL154610A
United States, Texas, Brewster County
USNM:PAL
Spirifer audaculus (Conrad)
USNM PAL177389 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904P
United States, Texas, Brewster County
USNM:PAL
Spirifer floydensis Weller
USNM PAL143385
USNM:PAL
Fusella llanoensis Carter
USNM PAL154846
United States, Texas, McCulloch County
USNM:PAL
Spirifer (Delthyris) mesicostalis (Hall)
USNM PAL98025 Butts & Edmundson
United States, West Virginia
USNM:PAL
Spirifer mucronatus var. posterus Hall & Clarke
USNM PAL177263 Maryland Geological Survey
United States, West Virginia, Morgan County
USNM:PAL
Spirifer (Martinia) planoconvexus Shumard
USNM PAL181250 Wheeler Survey 1871-00-00
United States, Nevada
USNM:PAL
Spirifera camerata Morton
USNM PAL174487 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Neospirifer bakeri bakeri Cooper & Grant
USNM PAL154613B
United States, Texas, Brewster County
USNM:PAL
Spirifer (Delthyris) keyserensis Swartz
USNM PAL177064 Maryland Geological Survey
United States, West Virginia, Mineral County
USNM:PAL
Spirifer Girty
USNM PAL120734 J. Taff, Girty & Richardson 1898-00-00
United States, Oklahoma
USNM:PAL
Spirifer coniculus Girty
USNM PAL33964C Cross & Spencer 1898-00-00
United States, Colorado
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL180940 G. Eldridge
United States, Colorado, Gunnison County
USNM:PAL
Spirifer rockymontanus Marcou
USNM PAL35322
USNM:PAL
Spirifer gorei Mather
USNM PAL252963 Miser
United States, Arkansas
USNM:PAL
Spirifer (Martinia) planoconvexus Shumard
USNM PAL996
USNM:PAL
Spirifer boonensis Swallow
USNM PAL120943
USNM:PAL
Neospirifer sp alpha Branisa
USNM PAL374061
Bolivia, Chochabamba Dept, Capinota Prov
USNM:PAL
Spirifer sp a Girty
USNM PAL61964 Willis & Blackwelder 1904-06-02
China, East Ssi-Chuan
USNM:PAL
Neospirifer bakeri columbarius Cooper & Grant
USNM PAL152905F
United States, Texas, Brewster County
USNM:PAL
Spirifer sculptilis Hall
USNM PAL51226
USNM:PAL
Spirifera leidyi Norwood & Pratten
USNM PAL14324B C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Neospirifer columbarius colubarius Cooper & Grant
USNM PAL154602B
United States, Texas, Brewster County
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894H
United States, Texas, Brewster County
USNM:PAL
Neospirifer bakeri bakeri Cooper & Grant
USNM PAL154613F
United States, Texas, Brewster County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL154606B
United States, Texas, Brewster County
USNM:PAL
Spirifera trigonalis (Martin)
USNM PAL14323D C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Fusella llanoensis Carter
USNM PAL154672
United States, Texas, McCulloch County
USNM:PAL
Neospirifer placidus Cooper & Grant
USNM PAL153276I
United States, Texas, Brewster County
USNM:PAL
Spirifera trigonalis (Martin)
USNM PAL14323B C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Spirifer rockymontanus Marcou
USNM PAL181821
United States, Oklahoma
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894A
United States, Texas, Brewster County
USNM:PAL
Spirifer (Eospirifer) radiatus (Sowerby)
USNM PAL62298
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894X
United States, Texas, Brewster County
USNM:PAL
Spirifer (Martinia) planoconvexus Shumard
USNM PAL8485 Wheeler Survey 1871-00-00
United States, New Mexico
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914D
United States, Texas, Brewster County
USNM:PAL
Spirifera engelmanni Meek
USNM PAL7748A
USNM:PAL
Spirifer rowleyi Weller
USNM PAL380816 A. Bowsher
United States, New Mexico, Sierra County
USNM:PAL
Parallelora marionensis (Hall)
USNM PAL181166
United States, Missouri
USNM:PAL
Spirifer (Cyrtina) lubecensis Williams
USNM PAL61454
USNM:PAL
Spirifer hungerfordi Hall
USNM PAL62592
USNM:PAL
Spirifer iowensis Owen
USNM PAL136736
USNM:PAL
Spirifer (Eospirifer) radiatus (Sowerby)
USNM PAL177499 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904F
United States, Texas, Brewster County
USNM:PAL
Anthracospirifer shawi exoletus Gordon
USNM PAL182775
United States, Wyoming, Fremont County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL154610D
United States, Texas, Brewster County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL154615E
United States, Texas, Brewster County
USNM:PAL
Spirifer occidentalis Girty
USNM PAL263354 J. Gehrig 1953-07-00
United States, New Mexico, Sierra County
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL180905 G. Eldridge
United States, Colorado, Chaffee County
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL152900B
United States, Texas, Brewster County
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL154599A
United States, Texas, Brewster County
USNM:PAL
Spirifera disjuncta Sowerby
USNM PAL626B
USNM:PAL
Spirifer washingtonensis var. incomptus Girty
USNM PAL143395
USNM:PAL
Spirifer macrothyris Hall
USNM PAL71584A C. Butts
United States, Alabama, Cherokee County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL154610G
United States, Texas, Brewster County
USNM:PAL
Neospirifer placidus Cooper & Grant
USNM PAL153276J
United States, Texas, Brewster County
USNM:PAL
Spirifer (Delthyris) vanuxemi tonolowayensis Swartz
USNM PAL176929 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer placidus Cooper & Grant
USNM PAL153276N
United States, Texas, Brewster County
USNM:PAL
Spirifera (Martinia) planoconvexa (Shumard)
USNM PAL174660 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Spirifer mucronatus var. posterus Hall & Clarke
USNM PAL177299 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Spirifer marcyi typicalis Williams
USNM PAL59624
USNM:PAL
Neospirifer notialis Cooper & Grant
USNM PAL152910B
United States, Texas, Brewster County
USNM:PAL
Spirifer pseudocameratus Girty
USNM PAL121686
USNM:PAL
Spirifer sp 2 Cooper & Cloud
USNM PAL95183A Cooper & Cloud
United States, Illinois, Calhoun County
USNM:PAL
Spirifer (Trigonotreta) strigosus Meek
USNM PAL629
USNM:PAL
Prospira sp a Carter et al.
USNM PAL557953 E. McKee & R. Gutschick
United States, Arizona
USNM:PAL
Spirifer striatus (Martin)
USNM PAL181249 Wheeler Survey 1871-00-00
United States, Utah
USNM:PAL
Spirifer robustus Webster
USNM PAL78582
USNM:PAL
Anthracospirifer occiduus (Sadlick)
USNM PAL167743
USNM:PAL
Spirifer blackwelderi Girty
USNM PAL183549
USNM:PAL
Unispirifer balki Armstrong
USNM PAL294495
United States, Arizona, Cochise County
USNM:PAL
Spirifera raricosta (Conrad)
USNM PAL13829 C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Spirifer divaricatus Hall
USNM PAL51191
USNM:PAL
Spirifer varicosus Hall
USNM PAL62092