USNM:PAL
Cyrtonotella sp 1 Cooper
USNM PAL109867B E. Ulrich
United States, Virginia
USNM:PAL
Archaeorthis canadensis Ulrich & Cooper
USNM PAL91444B
USNM:PAL
Orthambonites minusculus (Phleger)
USNM PAL162056C R. Ross-Jr.
United States, Nevada, Nye County
USNM:PAL
Archaeorthis elongata Ulrich & Cooper
USNM PAL91457A E. Kirk 1934-10-00
United States, Nevada
USNM:PAL
Orthostrophia strophomenoides (Hall)
USNM PAL125786B A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Orthostrophia strophomenoides newberryi Merriam
USNM PAL159540
United States, Nevada
USNM:PAL
Orthambonites perplexus Ross
USNM PAL145676
United States, Nevada
USNM:PAL
Orthambonites minutus Cooper
USNM PAL116883A A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Archaeorthis canadensis Ulrich & Cooper
USNM PAL91444D Ulrich Et Al 1934-07-00
Canada, Quebec
USNM:PAL
Orthambonites bifurcatus Cooper
USNM PAL109798E G. Cooper
United States, Nevada
USNM:PAL
Orthambonites robustus Neuman
USNM PAL143667
USNM:PAL
Archaeorthis elongata Ulrich & Cooper
USNM PAL91457E
USNM:PAL
Orthambonites neumani Cooper
USNM PAL116874Q G. Cooper
United States, Tennessee
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91461A
USNM:PAL
Orthambonites rotundiformis Cooper
USNM PAL109843B Bridge, Butts & Cooper
United States, Tennessee
USNM:PAL
Orthambonites rectangulatus Cooper
USNM PAL116877 Cooper & Loeblich
United States, Maryland
USNM:PAL
Cyrtonotella subplana Cooper
USNM PAL109860A G. Cooper
United States, Virginia
USNM:PAL
Orthambonites minusculus (Phleger)
USNM PAL91310C
USNM:PAL
Archaeorthis parviuscula Ulrich & Cooper
USNM PAL91470A C. Walcott & M. Walcott
Canada, Alberta
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91459A Ulrich Et Al
Canada, Quebec
USNM:PAL
Cyrtonotella sp 1 Cooper
USNM PAL109867D E. Ulrich
United States, Virginia
USNM:PAL
Orthambonites rotundiformis Cooper
USNM PAL109840F Bridge, Butts & Cooper
United States, Tennessee
USNM:PAL
Orthambonites rotundiformis Cooper
USNM PAL109840 Bridge, Butts & Cooper
United States, Tennessee
USNM:PAL
Cyrtonotella magna Cooper
USNM PAL116897B G. Cooper
United States, Tennessee
USNM:PAL
Orthostrophella clairensis (Thomas)
USNM PAL158092 Ulrich & Mesler
United States, Arkansas, Independence County
USNM:PAL
Taphrorthis emarginata Cooper
USNM PAL116891D G. Cooper
United States, Tennessee
USNM:PAL
Cyrtonotella virginiensis Butts
USNM PAL99263A Butts Et Al
United States, Virginia, Roanoke County
USNM:PAL
Orthambonites multicostellatus Cooper
USNM PAL116876A G. Cooper
United States, Virginia
USNM:PAL
Cyrtonotella virginiensis Butts
USNM PAL109872 R. Mesler
United States, Tennessee, Blount County
USNM:PAL
Orthambonites mostellerensis Cooper
USNM PAL109810 C. Butts
United States, Alabama
USNM:PAL
Orthambonites michaelis (Clark)
USNM PAL145662
United States, Utah
USNM:PAL
Orthambonites tenuicostatus Cooper
USNM PAL116875E G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Orthambonites paucicostatus (Ulrich & Cooper)
USNM PAL92842E
USNM:PAL
Orthambonites buttsi (Schuchert & Cooper)
USNM PAL109808 C. Butts
United States, Alabama
USNM:PAL
Orthambonites robustus Neuman
USNM PAL143670
USNM:PAL
Archaeorthis canadensis Ulrich & Cooper
USNM PAL91444A Ulrich Et Al 1934-07-00
Canada, Quebec
USNM:PAL
Cyrtonotella sp 1 Cooper
USNM PAL109867A E. Ulrich
United States, Virginia
USNM:PAL
Orthambonites perplexus Ross
USNM PAL145678
United States, Nevada
USNM:PAL
Orthambonites minusculus (Phleger)
USNM PAL162056E R. Ross-Jr.
United States, Nevada, Nye County
USNM:PAL
Cyrtonotella virginiensis Butts
USNM PAL116894A G. Cooper
United States, Virginia
USNM:PAL
Taphrorthis emarginata Cooper
USNM PAL116889A A. Loeblich
United States, Alabama
USNM:PAL
Orthambonites dinorthoides Cooper
USNM PAL109822 A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Orthambonites minusculus (Phleger)
USNM PAL162056F R. Ross-Jr.
United States, Nevada, Nye County
USNM:PAL
Cyrtonotella fasciculata Cooper
USNM PAL167183A Ross 1966-00-00
United States, Nevada
USNM:PAL
Orthambonites neumani Cooper
USNM PAL116874L G. Cooper
United States, Tennessee
USNM:PAL
Orthambonites tennesseensis Cooper
USNM PAL116878A G. Cooper
United States, Tennessee
USNM:PAL
Orthostrophia brownsportensis Amsden
USNM PAL160109
United States, Maine, Somerset County
USNM:PAL
Cyrtonotella magna Cooper
USNM PAL110353A G. Cooper
United States, Tennessee
USNM:PAL
Archaeorthis occidens Ulrich & Cooper
USNM PAL69713
USNM:PAL
Cyrtonotella fasciculata Cooper
USNM PAL167183C Ross 1966-00-00
United States, Nevada
USNM:PAL
Archaeorthis canadensis Ulrich & Cooper
USNM PAL91444D
USNM:PAL
Cyrtonotella Cooper & Cooper
USNM PAL111803 Cooper & Cooper
United States, Virginia, Russell County
USNM:PAL
Orthambonites bielsteini Cooper
USNM PAL109801 G. Cooper
United States, Pennsylvania
USNM:PAL
Orthambonites minusculus (Phleger)
USNM PAL162056B R. Ross-Jr.
United States, Nevada, Nye County
USNM:PAL
Orthambonites dinorthoides Cooper
USNM PAL109823A A. Loeblich
United States, Oklahoma, Carter County
USNM:PAL
Taphrorthis peculiaris Cooper
USNM PAL109883B Bridge & Cooper
United States, Virginia
USNM:PAL
Orthostrophella monitorensis Johnson
USNM PAL156762 M. Kay
United States, Nevada, Nye County
USNM:PAL
Orthostrophella monitorensis Johnson
USNM PAL156758 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Orthambonites minus Cooper
USNM PAL116882 Decker
United States, Oklahoma, Carter County
USNM:PAL
Orthostrophia brownsportensis Amsden
USNM PAL160110
United States, Maine, Somerset County
USNM:PAL
Orthambonites dinorthoides Cooper
USNM PAL109823D A. Loeblich
United States, Oklahoma, Carter County
USNM:PAL
Orthambonites marshalli (Wilson)
USNM PAL160797H Reso & Ross 1963-00-00
United States, Nevada, Lincoln County
USNM:PAL
Orthostrophella clairensis (Thomas)
USNM PAL158100
United States, Arkansas, Independence County
USNM:PAL
Orthambonites parvicrassicostatus Cooper
USNM PAL109832B Bridge & Cooper
United States, Virginia
USNM:PAL
Orthambonites bielsteini Cooper
USNM PAL109803D Bielstein
United States, Virginia
USNM:PAL
Orthambonites dinorthoides Cooper
USNM PAL109821 A. Loeblich
United States, Oklahoma, Murray County
USNM:PAL
Taphrorthis emarginata Cooper
USNM PAL116891B G. Cooper
United States, Tennessee
USNM:PAL
Orthostrophia strophomenoides (Hall)
USNM PAL125791E A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Orthambonites minusculus (Phleger)
USNM PAL162056G R. Ross-Jr.
United States, Nevada, Nye County
USNM:PAL
Orthambonites bellus Cooper
USNM PAL109799A G. Cooper
United States, Virginia, Bland County
USNM:PAL
Orthambonites robustus Neuman
USNM PAL143671
USNM:PAL
Orthambonites minusculus (Phleger)
USNM PAL91310A
USNM:PAL
Taphrorthis peculiaris Cooper
USNM PAL109883E Bridge & Cooper
United States, Virginia
USNM:PAL
Orthambonites subconvexus Cooper
USNM PAL109844B Decker
United States, Oklahoma, Murray County
USNM:PAL
Orthostrophella monitorensis Johnson
USNM PAL156756 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Orthambonites bellus Cooper
USNM PAL109799B G. Cooper
United States, Virginia, Bland County
USNM:PAL
Trondorthis bifurcatus (Cooper)
USNM PAL187746 McKee & Ross 1971-00-00
United States, Nevada
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91462E Ulrich Et Al 1934-07-00
Canada, Quebec
USNM:PAL
Orthambonites paucicostatus (Ulrich & Cooper)
USNM PAL92842C
USNM:PAL
Orthambonites decipiens (Phleger)
USNM PAL145656
United States, California
USNM:PAL
Orthambonites rotundiformis Cooper
USNM PAL109840H Bridge, Butts & Cooper
United States, Tennessee
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91461C
USNM:PAL
Archaeorthis biconvexa Cooper
USNM PAL116852A A. Loeblich
United States, Oklahoma, Pushmataha County
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91461D
USNM:PAL
Orthostrophella clairensis (Thomas)
USNM PAL158094 Ulrich & Mesler
United States, Arkansas, Independence County
USNM:PAL
Taphrorthis peculiaris Cooper
USNM PAL116893A G. Cooper
United States, Alabama, Bibb County
USNM:PAL
Orthostrophella clairensis (Thomas)
USNM PAL158088
United States, Arkansas, Independence County
USNM:PAL
Orthambonites eucharis (Ulrich & Cooper)
USNM PAL172155 Taggart & McClure
United States, Georgia, Catoosa County
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91461D G. Cooper 1934-00-00
Canada, Quebec
USNM:PAL
Orthambonites blountensis Cooper
USNM PAL109812 R. Mesler
United States, Tennessee, Blount County
USNM:PAL
Cyrtonotella virginiensis Butts
USNM PAL109865A Bridge, Butts & Cooper
United States, Virginia
USNM:PAL
Orthambonites bellus Cooper
USNM PAL116866E G. Cooper
United States, Virginia
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91462E
USNM:PAL
Orthambonites paucicostatus (Ulrich & Cooper)
USNM PAL92841
USNM:PAL
Cyrtonotella Cooper & Cooper
USNM PAL109860B Cooper & Cooper
United States, Virginia, Shenandoah County
USNM:PAL
Archaeorthis glomerata Ulrich & Cooper
USNM PAL91461E
USNM:PAL
Orthambonites rotundiformis Cooper
USNM PAL109840G Bridge, Butts & Cooper
United States, Tennessee
USNM:PAL
Archaeorthis canadensis Ulrich & Cooper
USNM PAL91444F Ulrich Et Al 1934-07-00
Canada, Quebec
USNM:PAL
Orthambonites marshalli (Wilson)
USNM PAL160797D Reso & Ross 1963-00-00
United States, Nevada, Lincoln County
USNM:PAL
Archaeorthis elongata Ulrich & Cooper
USNM PAL91457A