USNM:PAL
Zygospira putilla Hall & Clarke
USNM PAL133262 Ross 1955-00-00
United States, Idaho, Butte County
USNM:PAL
Atrypa devoniana Webster
USNM PAL135192
USNM:PAL
Atrypa reticularis var. niagarensis Nettelroth
USNM PAL51314
USNM:PAL
Atrypa devoniana Webster
USNM PAL84667
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL98031 Butts Et Al
United States, Virginia, Bath County
USNM:PAL
Atrypa reticularis hillsboroensis Foerste
USNM PAL87024
USNM:PAL
Spinatrypa compacta Cooper & Dutro
USNM PAL203590B Cooper & Dutro
United States, New Mexico
USNM:PAL
Atrypa lineata Webster
USNM PAL9214
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL353219
United States, Iowa
USNM:PAL
Atryparia rubra Cooper & Dutro
USNM PAL201005A Cooper & Dutro
United States, New Mexico
USNM:PAL
Atryparia rubra Cooper & Dutro
USNM PAL201014D
United States, New Mexico
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL177454 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spinatrypa (Invertrypa) subnuba Johnson
USNM PAL168860 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL24425A R. Kennicott
Canada, Northwest Territories
USNM:PAL
Atrypa sp a Johnson et al.
USNM PAL204193 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Atrypa spinosa Hall
USNM PAL174314 Ellison
United States, Pennsylvania, Perry County
USNM:PAL
Anatrypa calypso Johnson
USNM PAL168869 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200982C
United States, New Mexico
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL116596
USNM:PAL
Atrypa kobar Johnson
USNM PAL390135
United States, Nevada
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139994
USNM:PAL
Anatrypa micans (Buch)
USNM PAL160221
USNM:PAL
Gotatrypa altera Boucot et al.
USNM PAL409961 A. Boucot 1963-00-00
United States, California
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162850 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Atrypa devoniana Webster
USNM PAL84666
USNM:PAL
Spinatrypina angusticostata Johnson & Trojan
USNM PAL327539 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa trulla (Stainbrook)
USNM PAL201082B
United States, Iowa, Iowa County
USNM:PAL
Atrypa reticularis Linnaeus
USNM PAL380776
United States, Indiana, Clark County
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL84724
USNM:PAL
Catazyga Ross
USNM PAL124823
USNM:PAL
Zygospira modesta (Hall)
USNM PAL418150 HOWE LOC 3
United States, Tennessee
USNM:PAL
Catazyga erratica (Hall)
USNM PAL97607 Butts & Oder
United States, Virginia, Roanoke County
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL126397 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Spinatrypina angusticostata Johnson & Trojan
USNM PAL327540 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139993
USNM:PAL
Atryparia rabra Cooper & Dutro
USNM PAL201021 Cooper & Dutro
United States, New Mexico
USNM:PAL
Atrypa palmata Morris & Sharpe
USNM PAL125131
USNM:PAL
Desquamatia khavae Alekseeva
USNM PAL160219
USNM:PAL
Atrypa kobar Johnson
USNM PAL390133
United States, Nevada
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL115316 T. Amsden
United States, Oklahoma, Pontotoc County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126394 Bridge & Cloud 1949-00-00
United States, Maine, Somerset County
USNM:PAL
Spinatrypina recula Johnson
USNM PAL162859 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Zygospira recurvirostris (Hall)
USNM PAL97493 C. Butts
United States, Virginia, Alleghany County
USNM:PAL
Spinatrypina soetenica (Struve)
USNM PAL188423 R. Flory 1972-00-00
United States, Nevada, Eureka County
USNM:PAL
Plectatrypa imbricata (Sowerby)
USNM PAL164862 R. Shagam 1963-00-00
Venezuela
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL147260
USNM:PAL
Atrypa nevadana Merriam
USNM PAL93671
USNM:PAL
Desquamatia costata Cooper & Dutro
USNM PAL201003
United States, New Mexico
USNM:PAL
Zygospira variabilis Fenton & Fenton
USNM PAL111387D Bridge & Cooper
United States, Missouri, Ste. Genevieve County
USNM:PAL
Spinatrypina lamellosa Johnson & Trojan
USNM PAL327532 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200961
United States, New Mexico, Otero County
USNM:PAL
Gotatrypa altera Boucot et al.
USNM PAL409963 A. Boucot 1963-00-00
United States, California
USNM:PAL
Gotatrypa altera Boucot et al.
USNM PAL409965 A. Boucot 1963-00-00
United States, California
USNM:PAL
Spinatrypina comitata Cooper
USNM PAL327524 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180822 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL121470
USNM:PAL
Variatrypa (Radiatrypa) klukasi (Norris)
USNM PAL327515 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Zygospira aequivalvis Twenhofel
USNM PAL124826
USNM:PAL
Zygospira recurvirostris (Hall)
USNM PAL97609A C. Butts
United States, Virginia, Russell County
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL126399 C. Wolfe 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL115317 T. Amsden
United States, Oklahoma, Pontotoc County
USNM:PAL
Atrypa iowensis Fenton & Fenton
USNM PAL84695
USNM:PAL
Pseudoatrypa devoniana (Webster)
USNM PAL200927 Cooper & Dutro
United States, New Mexico
USNM:PAL
Catazyga anticostiensis (Billings)
USNM PAL139894 D. Rankin
United States, Maine, Penobscot County
USNM:PAL
Zygospira recurvirostris turgida (Hall)
USNM PAL78460
USNM:PAL
Atrypa hystrix Hall
USNM PAL85955
USNM:PAL
Atrypa plicifera Hall
USNM PAL486712
United States, New York
USNM:PAL
Atrypa reticularis var. b Boucot & Johnson
USNM PAL164872 R. Shagam 1962-00-00
Venezuela
USNM:PAL
Atrypa spinosa Hall
USNM PAL177357 Maryland Geological Survey
United States, Pennsylvania, Bedford County
USNM:PAL
Atrypa reticularis var. b Boucot & Johnson
USNM PAL164863 R. Shagam 1963-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Atrypa owenensis Webster
USNM PAL84740
USNM:PAL
Plectatrypa rugosa (Hall)
USNM PAL204206 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Zygospira recurvirostris (Hall)
USNM PAL97482B C. Butts
United States, Virginia, Alleghany County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126392 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL115319
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL126004 A. Boucot 1952-08-26
United States, Maine, Somerset County
USNM:PAL
Atrypa devoniana Webster
USNM PAL135283
USNM:PAL
Atrypa rockfordensis Webster
USNM PAL135193
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200982D
United States, New Mexico
USNM:PAL
Atrypa Amsden
USNM PAL158734 Mesler & Ulrich
United States, Arkansas, Searcy County
USNM:PAL
Gotatrypa altera Boucot et al.
USNM PAL409962 A. Boucot 1963-00-00
United States, California
USNM:PAL
Anatrypa (Variatrypa) exoleta Johnson
USNM PAL188436 Flory & Wright 1970-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL177378 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Atrypa missouriensis Miller
USNM PAL135189
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL126396 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Anatrypa (Variatrypa) exoleta Johnson
USNM PAL188504 M. Murphy
United States, Nevada
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180821 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Catazyga anticostiensis (Billings)
USNM PAL139896 D. Rankin
United States, Maine, Penobscot County
USNM:PAL
Atrypa independensis Webster
USNM PAL84681
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL353218
United States, Iowa
USNM:PAL
Zygospira modesta (Hall)
USNM PAL40485
United States, Ohio
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139980
USNM:PAL
Anatrypa (Variatrypa) exoleta Johnson
USNM PAL188439 Flory & C. Niebuhr 1971-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypina soetenica (Struve)
USNM PAL188420 Flory & Wright 1970-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa missouriensis Miller
USNM PAL62226
USNM:PAL
Atrypa calvini Nettelroth
USNM PAL51331
USNM:PAL
Zygospira sulcata Howe
USNM PAL145059
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL115318 T. Amsden
United States, Oklahoma, Pontotoc County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126395 A. Boucot 1949-07-19
United States, Maine, Somerset County
USNM:PAL
Atrypa missouriensis Miller
USNM PAL121467