USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL126002 A. Boucot 1952-08-26
United States, Maine, Somerset County
USNM:PAL
Zygospira acutirostris (Hall)
USNM PAL98197 C. Butts
United States, West Virginia
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126010 A. Boucot 1949-07-19
United States, Maine, Somerset County
USNM:PAL
Variatrypa (Radiatrypa) klukasi (Norris)
USNM PAL327514 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200931
United States, New Mexico
USNM:PAL
Anatrypa calypso Johnson
USNM PAL168872 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypina lamellosa Johnson & Trojan
USNM PAL327529 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Catazyga cartieri Cooper & Kindle
USNM PAL91786
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL84718
USNM:PAL
Atrypa independensis janesvillensis Fenton & Fenton
USNM PAL84684
USNM:PAL
Atrypa ellipsoidea Nettelroth
USNM PAL51179
USNM:PAL
Atrypa reticularis elongata Foerste
USNM PAL85472
USNM:PAL
Atrypa comata (Barrande)
USNM PAL380792
Czechoslovakia, Bohemia
USNM:PAL
Spinatrypina soetenica (Struve)
USNM PAL188418 Flory & C. Niebuhr 1971-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa echinocostata Lane & Ormiston
USNM PAL257548
United States, Alaska
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL84714
USNM:PAL
Iowatrypa owenensis (Webster)
USNM PAL481668
United States, Alaska
USNM:PAL
Zygospira maynesi Roy
USNM PAL124668
USNM:PAL
Catazyga anticostiensis (Billings)
USNM PAL139899 D. Rankin
United States, Maine, Penobscot County
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL84651
USNM:PAL
Pseudoatrypa devoniana (Webster)
USNM PAL200964
United States, New Mexico
USNM:PAL
Zygospira variabilis Fenton & Fenton
USNM PAL111387C Bridge & Cooper
United States, Missouri, Ste. Genevieve County
USNM:PAL
Spinatrypina sp d Johnson
USNM PAL251921 M. Murphy 1975-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa lineata Webster
USNM PAL78591
USNM:PAL
Catazyga cartieri Cooper & Kindle
USNM PAL91786A
USNM:PAL
Anatrypa (Variatrypa) licta Johnson
USNM PAL162855 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Catazyga anticostiensis (Billings)
USNM PAL139901 D. Rankin
United States, Maine, Penobscot County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL126744A R. Finks
United States, New York, Orange County
USNM:PAL
Zygospira sp 1 Cooper
USNM PAL117262A Cooper & Loeblich
United States, Tennessee
USNM:PAL
Atrypa marginalis Dalman
USNM PAL84820
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL116594
USNM:PAL
Gotatrypa altera Boucot et al.
USNM PAL409966 A. Boucot 1963-00-00
United States, California
USNM:PAL
Spinatrypina lamellosa Johnson & Trojan
USNM PAL327530 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139997
USNM:PAL
Atrypa iowensis Fenton & Fenton
USNM PAL84642
USNM:PAL
Zygospira Howe
USNM PAL208685
United States, Kentucky
USNM:PAL
Atrypa arctostriata Foerste
USNM PAL126014 A. Boucot 1952-08-26
United States, Maine, Somerset County
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180815 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL136747
USNM:PAL
Atrypa lineata Webster
USNM PAL84689
USNM:PAL
Spinatrypa obsolescens Cooper & Dutro
USNM PAL200962
United States, New Mexico, Socorro County
USNM:PAL
Spinatrypina recula Johnson
USNM PAL162857 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL201183A F. Stevenson
United States, New Mexico
USNM:PAL
Atrypa kobar Johnson
USNM PAL390134
United States, Nevada
USNM:PAL
Zygospira resupinata Wang
USNM PAL124825
USNM:PAL
Spinatrypa Johnson et al.
USNM PAL204275 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL177376 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Spinatrypa compacta Cooper & Dutro
USNM PAL203538 R. Flower
United States, New Mexico
USNM:PAL
Atrypa reticularis nodostriata Hall
USNM PAL62906
USNM:PAL
Zygospira cincinnatiensis Meek
USNM PAL23553
USNM:PAL
Atrypa biconvexa Maynard
USNM PAL163223 Maryland Geological Survey
United States, West Virginia, Mineral County
USNM:PAL
Zygospira nicolleti Foerste
USNM PAL78448
USNM:PAL
Zygospira variabilis Fenton & Fenton
USNM PAL111387A Bridge & Cooper
United States, Missouri, Ste. Genevieve County
USNM:PAL
Spinatrypa Johnson et al.
USNM PAL204276 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL62085
USNM:PAL
Atrypa nevadana Merriam
USNM PAL96371 Merriam
United States, Nevada, Eureka County
USNM:PAL
Atrypa hystrix var. occidentalis Hall
USNM PAL62222
USNM:PAL
Zygospira kentuckiensis James
USNM PAL51187
USNM:PAL
Atrypa planosulcata Webster
USNM PAL135191
USNM:PAL
Spinatrypina lamellosa Johnson & Trojan
USNM PAL327533 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL174113 Ellison
United States, Pennsylvania, Perry County
USNM:PAL
Atrypa missouriensis Miller
USNM PAL121468
USNM:PAL
Atrypa missouriensis Miller
USNM PAL124519
USNM:PAL
Spinatrypina sp d Johnson
USNM PAL251925 M. Murphy 1975-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa spinosa Hall
USNM PAL98012A Butts & Oder
United States, West Virginia
USNM:PAL
Plectatrypa arctoimbricata Amsden
USNM PAL158220 Mesler & Ulrich
United States, Arkansas, Searcy County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL139985
USNM:PAL
Atrypa montanensis Kindle
USNM PAL124516
USNM:PAL
Atrypa nieczlawiensis Kozlowski
USNM PAL171515 M. Murphy
United States, Nevada, Eureka County
USNM:PAL
Zygospira lebanonensis Cooper
USNM PAL111377A G. Cooper
United States, Tennessee, Bedford County
USNM:PAL
Spinatrypina soetenica (Struve)
USNM PAL188421 Flory & C. Niebuhr 1971-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypina lamellosa Johnson & Trojan
USNM PAL327531 W. Trojan 1978-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa independensis janesvillensis Fenton & Fenton
USNM PAL84682
USNM:PAL
Atrypa spinosa Hall
USNM PAL177356 Maryland Geological Survey
United States, Pennsylvania, Bedford County
USNM:PAL
Zygospira recurvirostris (Hall)
USNM PAL97609B C. Butts
United States, Virginia, Russell County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL136797
USNM:PAL
Atrypa waterlooensis Webster
USNM PAL84650
USNM:PAL
Atrypa kobar Johnson
USNM PAL390132
United States, Nevada
USNM:PAL
Zygospira paupera Billings
USNM PAL156322
USNM:PAL
Spinatrypina asymmetrica Johnson & Flory
USNM PAL180823 Flory & Wright
United States, Nevada, Elko County
USNM:PAL
Atrypa reticularis var. a Boucot & Johnson
USNM PAL164870 R. Shagam 1962-00-00
Venezuela, Merida, Libertador District
USNM:PAL
Atryparia rubra Cooper & Dutro
USNM PAL201005B
United States, New Mexico
USNM:PAL
Zygospira sulcata Howe
USNM PAL145058
United States, New Mexico, Grant County
USNM:PAL
Zygospira modesta Hall
USNM PAL381580 T. Johnson
United States, Ohio, Hamilton County
USNM:PAL
Atrypa hystrix Hall
USNM PAL177459 Maryland Geological Survey
United States, Maryland, Garrett County
USNM:PAL
Atrypa montanensis Kindle
USNM PAL124517
USNM:PAL
Atrypa reticularis var. a Boucot & Johnson
USNM PAL164869 R. Shagam 1962-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Atrypa spinosa montanensis Kindle
USNM PAL62224
USNM:PAL
Spinatrypa Johnson et al.
USNM PAL204277 Murphy Et Al
United States, Nevada, Eureka County
USNM:PAL
Atrypa reticularis (Linnaeus)
USNM PAL1165
USNM:PAL
Eospinatrypa sagana Boucot et al.
USNM PAL409972 A. Boucot 1963-00-00
United States, California
USNM:PAL
Spinatrypa (Invertrypa) talis Johnson
USNM PAL162848 Murphy & Boucot
United States, Nevada, Eureka County
USNM:PAL
Atrypa (Gotatrypa) Lane & Ormiston
USNM PAL257546
United States, Alaska
USNM:PAL
Spinatrypa (Invertrypa) subnuba Johnson
USNM PAL168865 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Atrypa tennesseensis Amsden
USNM PAL115320 T. Amsden
United States, Oklahoma, Pontotoc County
USNM:PAL
Spinatrypa (Invertrypa) subnuba Johnson
USNM PAL168867 Boucot & Gronberg 1967-00-00
United States, Nevada, Eureka County
USNM:PAL
Spinatrypa trulla decorticata (Stainbrook)
USNM PAL200982F
United States, New Mexico
USNM:PAL
Atrypa aspera Schlotheim
USNM PAL1166
USNM:PAL
Atrypa desquamata Sowerby
USNM PAL13848 C. Walcott
United States, Nevada, Eureka District
USNM:PAL
Plectatrypa arctoimbricata Amsden
USNM PAL158218 Mesler & Ulrich
United States, Arkansas, Searcy County