Species: eximius LAMBE, 1902
Etymology:
Holotype: NMC 1504
Locality: Red Deer River, Alberta Province, Canada.
Horizon: Judith River Formation, Judith River Group.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material: Left costals, 3, 5-9 and right costals 3, 4, 8th neural and suprapybal.
Referred material:
BRINKMAN & NICHOLLS, 1993
Locality: BB 102, (RR Grade Locality), Dinosaur Provincial Park, Newell County, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
UALVP 30824: Partial skull including almost complete skull roof and braincase.
TMP 84.36.48: Fragmentary lest parietal.
Locality: BB 50, Dinosaur Provincial Park, Newell County, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
TMP 89.36.112: Ventral surface of braincase.
Locality: BB 75, Dinosaur Provincial Park, Newell County, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
TMP 90.56.3: Incomplete skull roof.
Locality: LSD. 15, Sec. 34, TP 20, R11, W of the 4th Mer., Dinosaur Provincial Park, Newell County, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
TMP 84.36.48: Fragmentary left parietal.
TMP 85.59.39: Fragmentary pterygoid.
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 129184: Shell.
EBERTH, 1987
Locality: Dinosaur Provincial Park, Newell County, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
GAFFNEY, 1972
Locality: 2 3/4 miles south of west of Kimbeoth, in sec. 3, T22N, R10W, San Juan County, 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 8531: Shell.
Locality: Sec. 33, T25N, R43E, McCone County, Montana.
Horizon: Upper Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UNIV MINN VP2301: Almost complete shell.
Locality: Fruitland, San Juan County, New Mexico.
Horizon: Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
ROM 864: An almost complete shell.
HUTCHINSON & HOLROYD, 2003
Locality: DMNH loc 2368, Denver Basin, Colorado.
Horizon: Denver Formation, Di sequence.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
DMNH 45240: Plastron and parital carapace.
HUTCHINSON & KUES, 1985
Locality: BUNM 77-25, San Juan Basin, New Mexico.
Horizon: Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Postcranial remains.
LEHMAN, 1981
Locality: San Juan County, New Mexico.
Horizon: Hunter Wash Local Fauna, Lower Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
MATEER, 1981
Locality: Head of Ah-shi-sle-pah Wash, San Juan County, New Mexico.
Horizon: Below the Naashoibito Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
PMU.R24a,b: A plastron and carapace.
PMU.R24c-i: Cervical vertebrae 2 -8.
PMU.R24j: Caudal vertebrae series.
PMU.R24q: Pelvic girdle.
PMU.R24n: A right femur.
PMU.R25a, R26a, R27: Carapaces.
PMU.R25b, R26B, R28: Plastrons.
= Charitemys captans HAY, 1908
Etymology:
= Chisternon captans (HAY, 1908)Holotype: AMNH 6098
Locality: Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material: Fragments of plastron and carapace.
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Species: baueri GILMORE, 1916
Etymology:
Holotype: USNM 8344
Locality: Ah-shi-sle-pah Wash (= Meyers Creek), middle branch, about 30 miles south of Farmington and 4 miles east of reservation line, San Juan Basin, San Juan County, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Carapace and plasteron.
Referred material:
Hypotype: USNM 8531
GILMORE, 1919
Locality: 2 3/4 miles south of west of Kimbetoh, in sec. 3, T 22N, R 10W, San Juan County, New Mexico.
Horizon: Lower Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Fragmentary carapace and plastron.
ADRIAN, SMITH & McDONALD, 2025
Locality: San Juan County, New Mexico.
Note: Exact locality data are on file at teh BLM and the respective repositories.Horizon: Menefee Formation.
Biostratigraphy:
Age: Early Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
WSC 10612: Partial articualted shell.
CHCU 81269: Partial plastron.
GILMORE, 1935
Locality: T. 23.N., R10W, San Juan County, 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 13228: Shell.
SULLIVAN, JASINSKI, & LUCAS, 2013
Locality: ?, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Neurankylus cf. N. baueri
PMU.R 28: Incomplete carapace and plastron.
USNM 8621: Posterior carapace.
Locality: 389a, New Mexico.
Horizon: De-na-zin Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
SMP VP-2379: Carapace with carapace and plastron.
Locality: ?, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Neurankylus cf. N. baueri
ROM 864: Incomplete carapace and plastron.
Locality: 228, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Neurankylus cf. N. baueri
SMP VP-1931: Partial carapace.
Locality: 283, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
SMP VP-1503: Plastron fragment.
Neurankylus cf N. baueri
SMP VP-1854: Portion of plastron.
Locality: 421, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Neurankylus cf. N. baueri
SMP VP-2102: Incomplee carapace and nearly complete plastron.
Locality: 1616, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
NNHM P-22698: Carapace and fragment.
Locality: 1652, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Neurankylus cf. N. baueri
NMMNH P-22713: Various shell and bone fragments.
Locality: 1697, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Neurankylus cf. N. baueri
NMMNH P-22792: Incomplete plasteron and various fragments.
Locality: 3117, New Mexico.
Horizon: Hunter Wash Member, Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
NMMNH P-27988: Carapace and plastron sections.
?Neurankylus cf. N. baueri
NMMNH P-28850: Carapace sections.
Locality: 1672, New Mexico.
Horizon: Fossil Forest Member, Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Neurankylus cf. N. baueri
NMMNH P-22655: 3 shell fragments.
Locality: 1674, New Mexico.
Horizon: Fossil Forest Member, Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
NMMNH P-22745: Various shell fragments.
Neurankylus cf. N. baueri
NMMNH P-22749: Shell fragments.
Locality: 4015, New Mexico.
Horizon: Fossil Forest Member, Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
NMMNH P-27788: numerous shell fragments.
Neurankylus cf. N. baueri
NMMNH P-27776: numerous shell fragments.
WIMAN, 1933
Locality: Barrell Spring area on De-na-zin Wash, from between the conglomerates of the Ojo Alamo Sandstone, San Juan County, New Mexico.
Horizon: Naashoibito Member, Latest Kirkland Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Locality: Head Meyers Cr. 6 miles west of Kimbeoth, San Juan Basin, New Mexico.Horizon: Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Exemplar No. 1: An almost complete shell with limb girdles and vertebrae.
Locality: Head west branch Meyers Cr., 6 miles West of Kimbeoth Trading Post, San Juan Basin, San Juan County, New Mexico.Horizon: Lower Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Exemplar No. 2: A partial shell.
Locality: San Juan County, New Mexico.
Horizon: Naashoibito Member, Latest Kirkland Formation?
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Exemplar No. 3: A partial shell.
Locality: 1/2 mile oberhalb einer Stelle,die Als “South Branch Meyers Creek, about 4 miles above Cattle Ranch Bexeichnet Wurde, San Juan County, New Mexico”Horizon: Lower Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Exemplar No. 4: A partial carapace.
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Species: wyomingensis GILMORE, 1919
Etymology:
Holotype: USNM 7581
Locality: Shoshone River, near Cody, Big Horn County, Wyoming.
Horizon: Colorado Shale.
Biostratigraphy:
Age: Late Cretaceous.
Material: Posterior half of the carapace and plastron.
Note: May belong to Trinitichelys
= Baena fluviatilis PARKS, 1933
Etymology:
Holotype: ROM 854
Locality: Sand Creek, Red Deer River, Alberta Province, Canada.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material: Partial shell, lacking much of left side and anterior edge.
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Species: lithographicus
LARSON, LONGRICH, EVANS, & RYAN, 2013
Etymology: Greek, lithos, 'stone', and Greek, graphikos, 'writing';
referring to Writing-On-Stone Provincal Park, the closest major landmark of the
locality.
Paratypes:
RTMP 1991.113.0001: Fragmentary carapace, plastron, caudal vertebrae, limb elements, and possible squamosal.
RTMP 1991.113.0009: Plastron fragment.
Referred material:
RTMP 1994.377.0001: Carapace fragment.
RTMP 1998.102.0014: Carapace fragment and skull fragment including portions of basioccipital, basisphenoid, pterygoids, and platines.
RTMP 2007.036.001: Incomplete skull, including portions of pterygoid, basiphenoid, basioccipital, exoccipital, opisthotic, prootic, quadrate, and squamosal.
Species: hutchisoni LIVELY, 2015b
Etymology: In honor of Dr. J. Howard Hutchison, who contributed greatly to our understanding of baenid turtles over his career and discovred teh hootype specimen of this taxon.
Holotype: UCMP V93118/154450
Locality: Within Grand Staircase-Escalante National Monument, Garfield County, Utah.
Horizon: Middle unit, Kaiparowits Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material: A carapace and plastron missing approximately one-third of the right side, 2 cervical vertebrae, 2 sacral vertebare, 2 caudal vertebrae, both scapulae, right humerus and complete pelvis.
Referred material:
UMNH VP 20450: A partial shell and postcranial elments, including the posterior carapace and plastron, cervical and sacral vertebrae, scapula, humerus and pelvis.
UCMP V95083/194122: A frist peripheral.
TITUS, KNOLL, SERTICH, YAMAMURA, SUAREZ, GLASSPOOL, GINOUVES, LUKACIC & ROBERTS, 2021
Locality: Rainbows and Unicorns Quarry (RUQ), Kaiparowits Plateau area, Grqnd Staircase-Escalante National Mounument, Kane County, Utah.
Horizon: Middle Member, Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
Numbers: Not given:
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Species: utahensis LIVELY, 2015b
Etymology: In reference to the state of Utah, where the specimen was discovered.
Holotype: UMNH VP 22100
Locality: Within Grand Staircase-Escalante National Monument, Garfield County, Utah.
Horizon: Middle unit, Kaiparowits Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material: A nearly complete carapace and plastron.
Referred material:
BYU 12001: A nearly complete carapace and plastron.
BYU 9411: A shell with only the plastron visible.
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Species: notos LICHTIG & LUCAS, 2016
Etymology: Greek, notos, "south," in reference to both the southern locality of this specimen relative to other Neurankylus as well as the hypothesized southern Neurankylus series of N. notos (Coniacian-Santonian), N. baueri (Campanian), and N. torrejonensis (Torrejonian).
Holotype: NMMNH P-70008
Locality: NMMNH L-9158, Crevasse Canyon Formation, east of the Caballo Mountains, Sierra County, New Mexico.
Horizon: Crevasse Canyon 6574Formation.
Biostratigraphy:
Age: Coniacian-Santonian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Anterior two-thirds of plastron, proximal portion of posterior lobe of plastron, partial nuchal, partial left peripherals 1-7?, right peripherals 2-4?, and two caudal vertebrae. Many indeterminate, possible carapace fragments found immediately downstream of the plastron and peripherals.