USNM:PAL
Uncinulus obtusiplicatus (Hall)
USNM PAL142837
USNM:PAL
Uncinulus globulus Schuchert
USNM PAL97700A Butts & Edmundson
United States, Virginia, Augusta County
USNM:PAL
Hypothyridina emmonsi rotunda Cooper & Dutro
USNM PAL201160C Dutro & Cooper
United States, New Mexico
USNM:PAL
Hypothyridina emmonsi rotunda Cooper & Dutro
USNM PAL200950C A. Bowsher
United States, New Mexico
USNM:PAL
Uncinulus stricklandi (Sowerby)
USNM PAL172773 C. Butts
United States, Georgia, Floyd County
USNM:PAL
Sphaerirhynchia gibbosa (Nikiforova)
USNM PAL171504 Boucot & Murphy 1964-00-00
United States, Nevada, Eureka County
USNM:PAL
Hypothyridina venustula (Hall)
USNM PAL89864
United States, New York
USNM:PAL
Sphaerirhynchia Boucot
USNM PAL125870 A. Boucot 1952-00-00
United States, Maine, Somerset County
USNM:PAL
Uncinulus stricklandi (Sowerby)
USNM PAL176938 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Hypothyridina emmonsi (Hall & Whitfield)
USNM PAL14023A
USNM:PAL
Hypothyridina emmonsi Cooper & Dutro
USNM PAL201172 Bowsher & Cooper
United States, New Mexico
USNM:PAL
Uncinulus stricklandi (Sowerby)
USNM PAL178489 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Hypothyridina venustula (Hall)
USNM PAL95006
USNM:PAL
Hypothyridina venustula (Hall)
USNM PAL95003
USNM:PAL
Uncinulus acutiplicatus (Hall)
USNM PAL181810
United States, Oklahoma
USNM:PAL
Plethorhyncha barrandei Hall
USNM PAL534205
United States, Pennsylvania
USNM:PAL
Uncinulus schucherti Foerste
USNM PAL87108
USNM:PAL
Hypothyridina magister Belanski
USNM PAL371895
United States, Alaska
USNM:PAL
Genus sp a
USNM PAL481657
United States, Alaska
USNM:PAL
Hypothyridina emmonsi rotunda Cooper & Dutro
USNM PAL203497 A. Bowsher
United States, New Mexico, Otero County
USNM:PAL
Sphaerirhynchia sp c Boucot & Johnson
USNM PAL164836 R. Shagam 1962-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Plethorhyncha andersoni Merriam
USNM PAL159576
United States, Nevada
USNM:PAL
Hypothyridina emmonsi Cooper & Dutro
USNM PAL200949A
United States, New Mexico
USNM:PAL
Uncinulus obtusiplicatus (Hall)
USNM PAL142836
USNM:PAL
Hypothyris globularis Kindle
USNM PAL62229
USNM:PAL
Hypothyridina emmonsi rotunda Cooper & Dutro
USNM PAL201160A Dutro & Cooper
United States, New Mexico
USNM:PAL
Sphaerirhynchia Boucot
USNM PAL160127
United States, Maine, Somerset County
USNM:PAL
Sphaerirhynchia gibbosa (Nikiforova)
USNM PAL171505 Boucot & Murphy 1964-00-00
United States, Nevada, Eureka County
USNM:PAL
Hypothyridina emmonsi Cooper & Dutro
USNM PAL200950A A. Bowsher
United States, New Mexico, Otero County
USNM:PAL
Hypothyridina venustula (Hall)
USNM PAL91829
USNM:PAL
Uncinulus convexorus Maynard
USNM PAL81514
USNM:PAL
Uncinulus stricklandi (Sowerby)
USNM PAL176941 Maryland Geological Survey
United States, Maryland, Allegany County
USNM:PAL
Uncinulus nucleolatus (Hall)
USNM PAL97701 C. Butts
United States, Virginia, Highland County
USNM:PAL
Wilsonia saffordi (Hall)
USNM PAL62923
USNM:PAL
Sphaerirhynchia sp b Boucot & Johnson
USNM PAL164842 W. Smith 1961-00-00
Venezuela, Barinas, Pedraza District
USNM:PAL
Plethorhyncha andersoni Merriam
USNM PAL159578
United States, Nevada
USNM:PAL
Hypothyridina magister Belanski
USNM PAL481648
United States, Alaska
USNM:PAL
Wilsonia saffordi (Hall)
USNM PAL86984
USNM:PAL
Uncinulus pyramidatus (Hall)
USNM PAL153133C
USNM:PAL
Sphaerirhynchia Boucot
USNM PAL125875 A. Boucot 1952-07-30
United States, Maine, Somerset County
USNM:PAL
Sphaerirhynchia sp b Boucot & Johnson
USNM PAL164841 W. Smith 1961-00-00
Venezuela, Barinas, Pedraza District