BREITHAUPT, 1982
Locality: UW Locality V-79032, east flank of Rock Springs Uplift, Sweetwater County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UW 14121: Plasteron fragment.
UW 14122: Neural fragments.
UW 14123: Hypoplaston fragment.
UW 14124: Marginal fragments.
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BYRANT, 1990
Locality: Eastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 130002: Hyoplastra.
UCMP 130092: Hypoplastron.
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GILMORE, 1916
Locality: 5 miles northeast of Pina Veta China, San Juan Basin, New Mexico.
Horizon: Lower Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
USNM 8350: Hypoplastral.
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HOLRYOD & HUTCHISON, 2002
Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
173441:
Note: Plastomeninae?
Locality: UCMP V-5711, Bushy Tailed Blowout, Quarry area includes the floor of a small blowout approximately 10 yards northwest of the highest point on the ridge forming the northeastern side of the blowouts of loc. V-5003, S 1/2, Sec. 20, T37N, R64W, Lance Creek, Powder River Basin, Niobrara County, Wyoming.Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
173418:
Locality: UCMP V-5817, False Disciple Point, cross-stratified sandstone and sandy shales cropping out on the top of the northern end of a long, northwestward-trending ridge that extends from the crest of the divide between the Hancock and Lance Creek drainages, Niobrara County (Formerly Converse County), Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
173426:
Locality: UCMP V-5820, Kent 484, found on the surface near the top of the east side of a small draw on the south side of the prominent hill northeast of the J. Krejci ranch house, Niobrara County (Formerly Converse County), Wyoming.Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
173435:
Note: Plastomeninae A.
Locality: UCMP V65238, Niobrara County, Wyoming.Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
173431:
Note: Plastomenine A.
Locality: UW V91009, Hanna Basin, Carbon County, Southcentral Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
27383:
Note: cf. Plastomerinae25180:
Note: Plastomeninae, Trionychidae, Adocus
Locality: UW V92010, Hanna Basin, Carbon County, Southcentral Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
27222:
Note: Plastomeninae
Locality: UW V93003, Hanna Basin, Carbon County, Southcentral Wyoming.Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
27388:
Note: Plastomeninae.
Locality: UW V93007, Hanna Basin, Carbon County, Southcentral Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
27389:
Note: Plastomeninae.
Locality: UW V93008, Hanna Basin, Carbon County, Southcentral Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
30606:
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HUTCHISON & HOLROYD, 2003
Locality: DMNH 1513, Denver Basin, Colorado.
Horizon: Denver Formation, D1 sequence.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
DMNH 45109: Costal fragment.
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= cf. Plastomenus sp JASINSKI, SULLIVAN & LUCAS, 2011
Locality: San Juan Basin, New Mexico.
Horizon: Naashoibito Member, Ojo Alamo Formation.
Biostratigraphy: Alamo Wash Local Fauna.
Age: Late-early or earliest Late Maastrichtian Stage, Uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
SMP VP-2517: Nearly complete right parietal.
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MATEER, 1981
Locality: North flank of Ah-shi-sle-pah Wash, T22N, R11W, San Juan County, New Mexico.
Horizon: Kirtland Shale, below Naashoibito Member.
Biostratigraphy:
Age: Kirtlandian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
PMU.R30: Carapace.
PMU.R31: Plastron.
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McCORD, 1997, McCORD, TEGOWSKI & SCARBOROUGH, 2002
Localites: MSM 90-80, UALB 31, UALP 56, Adobe Canyon, Santa Rita Mountains,
Santa Cruz County, Arizona.
Horizon: Fort Crittenden Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
MSM p3229, UALP 1915, ASDM 1966: Distal pleural fragments.
UALP 1909: Hyo or hypo plastron fagment.
ASDM 1090: Pleural.
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MILLER, 1963
Locality: Southern Arizona.
Horizon:
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given:
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SULLIVAN, 2006
Locality: Bob's Bloody Bluff, SMP locality 396, Ah-Shi-Sle-Pah Wilderness Study Area, San Juan Basin, San Juan County, New Mexico.
Horizon: Fossil Forest Member, Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
SMP VP-1685: Incomplete xiphilastron
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WROBLEWSKI,1998
Locality: Western Hanna Basin, Carbon County, Southcentral Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: