USNM:PAL
Spirifera setigera Hall
USNM PAL14229A J. Clayton
United States, Utah
USNM:PAL
Anthracospirifer occiduus f. a Gordon
USNM PAL167745
United States, Wyoming, Teton County
USNM:PAL
Spirifera Owen
USNM PAL17926
USNM:PAL
Imbrexia vernonensis (Swallow)
USNM PAL380742 Cooper & Main
United States, New Mexico, Sierra County
USNM:PAL
Spirifer Butts
USNM PAL71606 C. Butts
United States, Alabama, Chilton County
USNM:PAL
Spirifer bifurcatus Hall
USNM PAL71549 C. Butts
United States, Alabama, Lauderdale County
USNM:PAL
Eliva inflata Cooper & Grant
USNM PAL152887B
United States, New Mexico, Eddy County
USNM:PAL
Spirifer louisianensis Rowley
USNM PAL263400 A. Armstrong 1956-06-00
United States, New Mexico
USNM:PAL
Fusella llanoensis Carter
USNM PAL154842
United States, Texas, San Saba County
USNM:PAL
Spirifer (Delthyris) mesicostalis Hall
USNM PAL98006A Butts Et Al
United States, Virginia, Bath County
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916ZA
United States, Texas, Brewster County
USNM:PAL
Spirifer cameratus Morton
USNM PAL181238 Wheeler Survey 1871-00-00
United States, Utah
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152918B
United States, Texas, Brewster County
USNM:PAL
Neospirifer praenuntius Easton
USNM PAL118812B
USNM:PAL
Spirifer chappelensis Carter
USNM PAL154826
United States, Texas, McCulloch County
USNM:PAL
Spirifer cameratus Morton
USNM PAL181231 Wheeler Survey 1871-00-00
United States, Nevada, White Pine County
USNM:PAL
Spirifer cameratus Morton
USNM PAL181242 Wheeler Survey 1871-00-00
United States, Utah
USNM:PAL
Spirifer disjunctus var. animasensis Girty
USNM PAL180924 G. Eldridge & H. Eldridge
United States, Colorado, Gunnison County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL154606A
United States, Texas, Brewster County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL153914F
United States, Texas, Brewster County
USNM:PAL
Spirifer divaricatus Hall
USNM PAL51190
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL152961B
United States, Texas, Culberson County
USNM:PAL
Spirifer engelmanni Meek
USNM PAL627
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152913D
United States, Texas, Brewster County
USNM:PAL
Prospira greenockensis (Brown)
USNM PAL176851
United States, Iowa, Pocahontas County
USNM:PAL
Spirifer (Delthyris) mesacostalis Hall
USNM PAL177471 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Ectochoristites inflatus Carter
USNM PAL167968 G. Cooper 1946-00-00
United States, Texas, Mason County
USNM:PAL
Anthracospirifer pellaensis Weller
USNM PAL380771 R. Main
United States, Iowa, Marion County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL154613I
United States, Texas, Brewster County
USNM:PAL
Spirifer (Delthyris) mesicostalis (Hall)
USNM PAL98005B Butts & Edmundson
United States, West Virginia
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914O
United States, Texas, Brewster County
USNM:PAL
Spirifer compositus Girty
USNM PAL180660 1906-10-00
United States, Pennsylvania
USNM:PAL
Spirifer lateralis Hall
USNM PAL71546 C. Butts
United States, Alabama, Lauderdale County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152906C
United States, Texas, Brewster County
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152893E
United States, Texas, Brewster County
USNM:PAL
Spirifer (Trigonotreta) argentarius Meek
USNM PAL124510
USNM:PAL
Spirifer opimus Hall
USNM PAL455913 LOC.1
United States, Wyoming, Fremont County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908D
United States, Texas, Brewster County
USNM:PAL
Neospirifer bakeri bakeri King
USNM PAL152904ZA
United States, Texas, Brewster County
USNM:PAL
Mirifusella fortunata Carter
USNM PAL557940 E. McKee & R. Gutschick
United States, Arizona
USNM:PAL
Neospirifer praenuntius Easton
USNM PAL118811
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916Z
United States, Texas, Brewster County
USNM:PAL
Spirifer concinnus Hall
USNM PAL59733
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916M
United States, Texas, Brewster County
USNM:PAL
Spirifera centronata Winchell
USNM PAL14224A S. Emmons
United States, Utah
USNM:PAL
Spirifer (Eospirifer) eudora Hall
USNM PAL84917
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL154568B
United States, Texas, Culberson County
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL154567B
United States, Texas, Culberson County
USNM:PAL
Eliva shumardi Cooper & Grant
USNM PAL154569C
United States, Texas, Culberson County
USNM:PAL
Unispirifer forbesi (Norwood & Pratten)
USNM PAL557961 E. McKee & R. Gutschick
United States, Arizona
USNM:PAL
Spirifera (Martinia) undifera (Roemer)
USNM PAL13840A
USNM:PAL
Parallelora marionensis (Hall)
USNM PAL181169
United States, Missouri
USNM:PAL
Fusella llanoensis Carter
USNM PAL154850
United States, Texas, San Saba County
USNM:PAL
Spirifer kayserianus Lydekker
USNM PAL187949 E. Berry 1919-00-00
Bolivia
USNM:PAL
Imbrexia forbesi (Norwood & Pratten)
USNM PAL263461
United States, Arizona, Cochise County
USNM:PAL
Spirifer angustus Hall
USNM PAL177444 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spirifer rockymontanus Marcou
USNM PAL263355 J. Gehrig 1953-07-00
United States, New Mexico, Sierra County
USNM:PAL
Spirifer marcyi var. superstes Clarke & Swartz
USNM PAL174438 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Eliva inflata Cooper & Grant
USNM PAL118588E
United States, Texas
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152916H
United States, Texas, Brewster County
USNM:PAL
Spirifer martiniiformis Girty
USNM PAL121150
USNM:PAL
Spirifer centronatus Winchell
USNM PAL8532
USNM:PAL
Neospirifer notialis Cooper & Grant
USNM PAL152910D
United States, Texas, Brewster County
USNM:PAL
Ectochoristites inflatus Carter
USNM PAL154837 Cooper & Cloud 1946-00-00
United States, Texas, McCulloch County
USNM:PAL
Spirifer murchisoni marylandicus Castelnau
USNM PAL62968
USNM:PAL
Spirifer cameratus Morton
USNM PAL8502 Wheeler Survey 1871-00-00
United States, New Mexico
USNM:PAL
Neospirifer thescelus Cooper & Grant
USNM PAL152918D
United States, Texas, Brewster County
USNM:PAL
Spirifer mucronatus Conrad
USNM PAL177039 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Spirifer marcyi var. superstes Clarke & Swartz
USNM PAL177421 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spirifer subvaricosus Hall & Whitfield
USNM PAL136810
USNM:PAL
Spirifer opimus Hall
USNM PAL455912 LOC.1
United States, Wyoming, Fremont County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152912H
United States, Texas, Brewster County
USNM:PAL
Anthracospirifer newberryi Sutherland & Harlow
USNM PAL256828
United States, Arizona
USNM:PAL
Spirifer redwallensis Carter et al.
USNM PAL557926 E. McKee & R. Gutschick
United States, Arizona
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914R
United States, Texas, Brewster County
USNM:PAL
Spirifer disjunctus Girty
USNM PAL98009 Butts & Oder
United States, West Virginia
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914E
United States, Texas, Brewster County
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152909C
United States, Texas, Brewster County
USNM:PAL
Spirifera opima Hall
USNM PAL174477 C. Hartt & O. Derby
Brazil, Para
USNM:PAL
Neospirifer formulosus Cooper & Grant
USNM PAL152908A
United States, Texas, Brewster County
USNM:PAL
Spirifer coniculus Girty
USNM PAL33964A Cross & Spencer 1898-00-00
United States, Colorado
USNM:PAL
Spirifer gregeri Weller
USNM PAL263472 A. Armstrong
United States, Arizona, Cochise County
USNM:PAL
Spirifer striatus madisonensis Girty
USNM PAL35184A A. Gill
United States, Wyoming
USNM:PAL
Spirifer chappelensis Carter
USNM PAL154829
United States, Texas, McCulloch County
USNM:PAL
Spirifer Girty
USNM PAL61981 1904-00-00
China, East Ssi-Chuan
USNM:PAL
Spirifer murchisoni Castelnau
USNM PAL56708
USNM:PAL
Anthracospirifer curvilateralis brutus Gordon
USNM PAL167741
United States, Wyoming, Teton County
USNM:PAL
Spirifer pseudocameratus Girty
USNM PAL121690
USNM:PAL
Spirifer disjunctus Girty
USNM PAL177411 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Neospirifer apothescelus Cooper & Grant
USNM PAL154600B
United States, Texas, Brewster County
USNM:PAL
Spirifer marcyi var. superstes Clarke & Swartz
USNM PAL177268 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spirifera
USNM PAL339988 H. Bradley 1872-09-29
United States, Wyoming
USNM:PAL
Spirifer macropleurus (Hall)
USNM PAL97861D Butts & Edmundson
United States, Virginia, Highland County
USNM:PAL
Spirifer (Martinia) meristoides Meek
USNM PAL5891
USNM:PAL
Neospirifer placidus Cooper & Grant
USNM PAL153276D
United States, Texas, Brewster County
USNM:PAL
Neospirifer mansuetus Cooper & Grant
USNM PAL152914C
United States, Texas, Brewster County
USNM:PAL
Neospirifer amphigyus Cooper & Grant
USNM PAL152894V
United States, Texas, Brewster County
USNM:PAL
Anthracospirifer occiduus (Sadlick)
USNM PAL118717C
USNM:PAL
Neospirifer condor (d'Orbigny)
USNM PAL374037
Bolivia, Cochabamba Dept, Capinota Prov
USNM:PAL
Spirifera disjuncta Sowerby
USNM PAL626