USNM:PAL
Atrypa kobar Johnson
USNM PAL390136
United States, Nevada
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126390 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Atrypa nieczlawiensis Kozlowski
USNM PAL171518 Boucot & Murphy 1964-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa Johnson
USNM PAL188416 R. Flory 1972-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162849 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL201002 Branson, E. Yochelson & Cooper
United States, New Mexico
USNM:PAL
Atrypa independensis Webster
USNM PAL84720
USNM:PAL
Atrypa nevadana Merriam
USNM PAL390140 LM-13
United States, Nevada
USNM:PAL
Zygospira circularis Cooper
USNM PAL111385 Bridge
United States, Tennessee
USNM:PAL
Zygospira variabilis Fenton & Fenton
USNM PAL111387B Bridge & Cooper
United States, Missouri, Ste. Genevieve County
USNM:PAL
Atrypa arctostriata Foerste
USNM PAL86981
USNM:PAL
Atrypa Amsden
USNM PAL158736
United States, Arkansas, Independence County
USNM:PAL
Atrypa devoniana decrescens Fenton & Fenton
USNM PAL84662
USNM:PAL
Atrypa independensis Webster
USNM PAL84640
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL62294
USNM:PAL
Atrypa reticularis newsomensis Foerste
USNM PAL86998
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL201184
United States, New Mexico
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180816 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Atrypa (Gotatrypa) Johnson
USNM PAL180783
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis var. a Boucot & Johnson
USNM PAL164865 R. Shagam 1962-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Atrypa missouriensis Miller
USNM PAL121469
USNM:PAL
Atrypa Lane & Ormiston
USNM PAL257547
United States, Alaska
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200982A
United States, New Mexico, Otero County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126008 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Spinatrypa (Invertrypa) subnuba Johnson
USNM PAL168858 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypina comitata Cooper
USNM PAL327527 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis var. a Boucot & Johnson
USNM PAL164868 R. Shagam 1962-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Atrypa devoniana Webster
USNM PAL78612
USNM:PAL
Spinatrypa Johnson et al.
USNM PAL204274 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Atryparia rubra Cooper & Dutro
USNM PAL201014B
United States, New Mexico
USNM:PAL
Anatrypa (Variatrypa) licta Johnson
USNM PAL162851 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Pseudoatrypa devoniana (Webster)
USNM PAL200966
United States, New Mexico, Otero County
USNM:PAL
Anatrypa micans (Buch)
USNM PAL160220
USNM:PAL
Atrypa lineata var. inflata Webster
USNM PAL78610
USNM:PAL
Anatrypa (Variatrypa) licta Johnson
USNM PAL162853 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Zygospira sp 1 Cooper
USNM PAL117262B Cooper & Loeblich
United States, Tennessee
USNM:PAL
Atrypa missouriensis Miller
USNM PAL124520
USNM:PAL
Sibirispira Johnson et al.
USNM PAL171526 M. Murphy 1966-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa obsolescens Cooper & Dutro
USNM PAL200997D
United States, New Mexico, Socorro County
USNM:PAL
Atrypa arctostriata Foerste
USNM PAL126015 A. Boucot 1952-08-26
United States, Maine, Somerset County
USNM:PAL
Eospinatrypa sagana Boucot et al.
USNM PAL409970 A. Boucot 1963-00-00
United States, California
USNM:PAL
Variatrypa (Radiatrypa) klukasi (Norris)
USNM PAL327519 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Eospinatrypa sagana Boucot et al.
USNM PAL409973 A. Boucot 1963-00-00
United States, California
USNM:PAL
Atrypa waterlooensis websteri Fenton & Fenton
USNM PAL84645
USNM:PAL
Variatrypa (Radiatrypa) klukasi (Norris)
USNM PAL327518 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Variatrypa (Radiatrypa) advena Johnson & Trojan
USNM PAL327508 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa Johnson
USNM PAL157059 Johnson Et Al
United States, Nevada, Eureka County
USNM:PAL
Atrypa independensis janesvillensis Fenton & Fenton
USNM PAL84685
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139988
USNM:PAL
Spinatrypa trulla (Stainbrook)
USNM PAL201082A
United States, Iowa, Iowa County
USNM:PAL
Spinatrypina angusticostata Johnson & Trojan
USNM PAL327538 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL136798
USNM:PAL
Spinatrypa (Invertrypa) subnuba Johnson
USNM PAL168862 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa trowbridgei Fenton & Fenton
USNM PAL84671
USNM:PAL
Spinatrypa (Invertrypa) subnuba Johnson
USNM PAL168864 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139982
USNM:PAL
Variatrypa (Radiatrypa) advena Johnson & Trojan
USNM PAL327505 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypina angusticostata Johnson & Trojan
USNM PAL327536 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162847 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139992
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL147261
USNM:PAL
Spinatrypa trulla (Stainbrook)
USNM PAL371889
United States, Alaska
USNM:PAL
Atrypa waterlooensis gigantea Webster
USNM PAL84725
USNM:PAL
Atrypa sp f Merriam
USNM PAL159479
United States, Nevada
USNM:PAL
Atryparia rubra Cooper & Dutro
USNM PAL201014A
United States, New Mexico
USNM:PAL
Zygospira kentuckiensis James
USNM PAL97596 Butts Et Al
United States, Virginia, Lee County
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL78588
USNM:PAL
Plectatrypa arctoimbricata Amsden
USNM PAL158221 Mesler & Ulrich
United States, Arkansas, Searcy County
USNM:PAL
Spinatrypa (Invertrypa) subnuba Johnson
USNM PAL168857 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Catazyga anticostiensis (Billings)
USNM PAL139900 D. Rankin
United States, Maine, Penobscot County
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162844 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Pseudoatrypa devoniana (Webster)
USNM PAL201018 Branson, E. Yochelson & Cooper
United States, New Mexico
USNM:PAL
Atrypa snyderensis Greger
USNM PAL135195
USNM:PAL
Atrypa reticularis var. b Boucot & Johnson
USNM PAL164871 R. Shagam 1962-00-00
Venezuela
USNM:PAL
Atrypa devoniana Webster
USNM PAL84665
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162843 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Gotatrypa altera Boucot et al.
USNM PAL409964 A. Boucot 1963-00-00
United States, California
USNM:PAL
Zygospira circularis Cooper
USNM PAL111374A R. Bassler
United States, Tennessee
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200982E
United States, New Mexico
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162845 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Atrypa spinosa montanensis Kindle
USNM PAL62223
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL178450 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Zygospira recurvirostris (Hall)
USNM PAL133238 1955-00-00
United States, Idaho, Butte County
USNM:PAL
Atrypa pronis Fenton & Fenton
USNM PAL84679
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL176995 Maryland Geological Survey
United States, Maryland, Washington County
USNM:PAL
Desquamatia costata Cooper & Dutro
USNM PAL201006
United States, New Mexico
USNM:PAL
Atrypa pronis onusta Fenton & Fenton
USNM PAL84677
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180814 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Catazyga homeospiroides Ross & Dutro
USNM PAL145331
USNM:PAL
Atrypa pronis Fenton & Fenton
USNM PAL84674
USNM:PAL
Desquamatia costata Cooper & Dutro
USNM PAL200973 C. Branson
United States, New Mexico
USNM:PAL
Spinatrypina recula Johnson
USNM PAL162858 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Variatrypa (Radiatrypa) klukasi (Norris)
USNM PAL327521 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Anatrypa (Variatrypa) exoleta Johnson
USNM PAL188438 M. Murphy
United States, Nevada
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL116598
USNM:PAL
Zygospira paupera Billings
USNM PAL156323
USNM:PAL
Zygospira circularis Cooper
USNM PAL133267 Ross, Cloud & Gordon 1955-00-00
United States, Idaho, Butte County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139990
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126393 A. Boucot 1949-07-25
United States, Maine, Somerset County
USNM:PAL
Atrypa Amsden
USNM PAL158737
United States, Arkansas, Independence County