USNM:PAL
Spinatrypa compacta Cooper & Dutro
USNM PAL200978A Cooper & Dutro
United States, New Mexico
USNM:PAL
Atrypa spinosa Hall
USNM PAL174115 Ellison
United States, Pennsylvania, Bedford County
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL115315 T. Amsden
United States, Oklahoma, Pontotoc County
USNM:PAL
Spinatrypina sp d Johnson
USNM PAL251922 M. Murphy 1975-00-00
United States, Nevada, Eureka County
USNM:PAL
Desquamatia clarkei (Warren)
USNM PAL251976 J. Johnson 1958-00-00
United States, Nevada, Eureka County
USNM:PAL
Zygospira resupinata multicostata Howe
USNM PAL145054
United States, Texas, Hudspeth County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL13845 C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Variatrypa (Radiatrypa) klukasi (Norris)
USNM PAL327517 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Eospinatrypa sagana Boucot et al.
USNM PAL409968 A. Boucot 1963-00-00
United States, California
USNM:PAL
Atrypa reticularis var. a Boucot & Johnson
USNM PAL164867 R. Shagam 1962-00-00
Venezuela, Merida, Libertador District
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL84654
USNM:PAL
Catazyga homeospiroides Ross & Dutro
USNM PAL145330
USNM:PAL
Zygospira resupinata multicostata Howe
USNM PAL145055
United States, Texas, Hudspeth County
USNM:PAL
Spinatrypa sp b Johnson
USNM PAL145512
USNM:PAL
Iowatrypa rara Cooper & Dutro
USNM PAL201135B Branson, E. Yochelson & Cooper
United States, New Mexico
USNM:PAL
Atrypa nieczlawiensis Kozlowski
USNM PAL171520 Boucot & Murphy 1964-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa lineata Webster
USNM PAL84747
USNM:PAL
Atryparia rubra Cooper & Dutro
USNM PAL201014E
United States, New Mexico
USNM:PAL
Spinatrypa Johnson in Johnson & Klapper
USNM PAL241059
United States, Oregon, Crook County
USNM:PAL
Eospinatrypa sagana Boucot et al.
USNM PAL409971 A. Boucot 1963-00-00
United States, California
USNM:PAL
Pseudoatrypa percrassa (Crickmay)
USNM PAL327511 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Catazyga anticostiensis (Billings)
USNM PAL139895 D. Rankin
United States, Maine, Penobscot County
USNM:PAL
Spinatrypina lamellosa Johnson & Trojan
USNM PAL327535 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa virilicosta Lenz
USNM PAL257545
United States, Alaska
USNM:PAL
Atrypa hystrix Hall
USNM PAL136748
USNM:PAL
Spinatrypina sp d Johnson
USNM PAL251923 M. Murphy 1975-00-00
United States, Nevada, Eureka County
USNM:PAL
Zygospira modesta (Hall)
USNM PAL418149 HOWE LOC 3
United States, Tennessee
USNM:PAL
Zygospira paupera Billings
USNM PAL156324
USNM:PAL
Atrypa owenensis Webster
USNM PAL84697
USNM:PAL
Anatrypa calypso Johnson
USNM PAL168873 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa sp a Johnson et al.
USNM PAL204192 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Atrypa snyderensis Greger
USNM PAL135196
USNM:PAL
Anatrypa (Variatrypa) licta Johnson
USNM PAL162854 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Spinatrypina soetenica (Struve)
USNM PAL188422 Flory & C. Niebuhr 1971-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa montanensis Kindle
USNM PAL124515
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL24425
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL97705 C. Butts
United States, Virginia, Craig County
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200999 Cooper & Dutro
United States, New Mexico
USNM:PAL
Iowatrypa rara Cooper & Dutro
USNM PAL201135A Branson, E. Yochelson & Cooper
United States, New Mexico
USNM:PAL
Variatrypa (Radiatrypa) advena Johnson & Trojan
USNM PAL327510 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Catazyga homeospiroides Ross & Dutro
USNM PAL145327
USNM:PAL
Spinatrypa compacta Cooper & Dutro
USNM PAL200978B Cooper & Dutro
United States, New Mexico
USNM:PAL
Atrypa nieczlawiensis Kozlowski
USNM PAL171514 M. Murphy
United States, Nevada, Eureka County
USNM:PAL
Atrypa spinosa var. linderi Webster
USNM PAL78589
USNM:PAL
Desquamatia costata Cooper & Dutro
USNM PAL200972
United States, New Mexico
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180824 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162846 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL153129
USNM:PAL
Plectatrypa rugosa (Hall)
USNM PAL204203 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Variatrypa (Radiatrypa) klukasi (Norris)
USNM PAL327516 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa Owen
USNM PAL17927
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL126400 A. Boucot 1953-00-00
United States, Maine, Somerset County
USNM:PAL
Catazyga homeospiroides Ross & Dutro
USNM PAL145328
USNM:PAL
Spinatrypina comitata Cooper
USNM PAL327528 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Zygospira resupinata multicostata Howe
USNM PAL145056
United States, Texas, Hudspeth County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL140387
USNM:PAL
Atrypa nevadana Merriam
USNM PAL390139 LM-13
United States, Nevada
USNM:PAL
Atrypa missouriensis Miller
USNM PAL14019B
USNM:PAL
Zygospira circularis Cooper
USNM PAL111374 R. Bassler
United States, Tennessee
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180813 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Sibirispira Johnson et al.
USNM PAL171527 M. Murphy 1966-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL177502 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Atrypa kobar Johnson
USNM PAL390131
United States, Nevada
USNM:PAL
Atrypa desquamata Sowerby
USNM PAL13848B C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Atrypa lineata Webster
USNM PAL84652
USNM:PAL
Eospinatrypa sagana Boucot et al.
USNM PAL409969 A. Boucot 1963-00-00
United States, California
USNM:PAL
Anatrypa (Variatrypa) exoleta Johnson
USNM PAL188432 M. Murphy
United States, Nevada
USNM:PAL
Sibirispira Johnson et al.
USNM PAL171525 M. Murphy 1966-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL126398 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Pseudoatrypa percrassa (Crickmay)
USNM PAL327513 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139991
USNM:PAL
Atrypa devoniana decrescens Fenton & Fenton
USNM PAL84648
USNM:PAL
Karpinskia conjugula Tschernyschew
USNM PAL155509
USNM:PAL
Zygospira lebanonensis Cooper
USNM PAL133270 Ross 1955-00-00
United States, Idaho, Butte County
USNM:PAL
Zygospira resupinata multicostata Howe
USNM PAL145057
United States, Texas, Hudspeth County
USNM:PAL
Atrypa (Gotatrypa) Johnson
USNM PAL180782
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139986
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL97706A C. Butts
United States, Virginia, Highland County
USNM:PAL
Atrypa devoniana decrescens Fenton & Fenton
USNM PAL84664
USNM:PAL
Atrypa devoniana decrescens Fenton & Fenton
USNM PAL84663
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139995
USNM:PAL
Atrypa waterlooensis websteri Fenton & Fenton
USNM PAL84644
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL116597
USNM:PAL
Zygospira elongata Cooper
USNM PAL111375A E. Ulrich
United States, Tennessee, Cannon County
USNM:PAL
Atrypa iowensis Fenton & Fenton
USNM PAL84646
USNM:PAL
Atrypa hystrix Hall
USNM PAL178491 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Variatrypa (Radiatrypa) advena Johnson & Trojan
USNM PAL327507 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Plectatrypa rugosa (Hall)
USNM PAL204205 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Atryparia rubra Cooper & Dutro
USNM PAL201014C
United States, New Mexico
USNM:PAL
Zygospira putilla Hall & Clarke
USNM PAL133263 Ross 1955-00-00
United States, Idaho, Butte County
USNM:PAL
Atrypa owenensis Webster
USNM PAL78611
USNM:PAL
Spinatrypina comitata Cooper
USNM PAL327525 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Catazyga headi schuchertana Ulrich
USNM PAL87052
USNM:PAL
Atrypa spinosa Hall
USNM PAL174114 Ellison
United States, Pennsylvania, Bedford County
USNM:PAL
Zygospira paupera Billings
USNM PAL156321
USNM:PAL
Spinatrypa compacta Cooper & Dutro
USNM PAL203540A Cooper & Dutro
United States, New Mexico
USNM:PAL
Iowatrypa rara Cooper & Dutro
USNM PAL201098 Cooper & Dutro
United States, New Mexico
USNM:PAL
Atrypa independensis Webster
USNM PAL84688
USNM:PAL
Plectatrypa arctoimbricata Amsden
USNM PAL158217 Mesler & Ulrich
United States, Arkansas, Searcy County
USNM:PAL
Atrypa missouriensis Miller
USNM PAL135190