Genus: Neurankylus LAMBE, 1902
Etymology:

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.

 

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.

Holotype: RMTP 2007.035.0045

Locality: 1.5 km east of Writing-On-Stone Provincal Park, Warner County, Alberta Province, Canada.

Horizon: Deadhorse Coulee Member, Milk River Formation, 26.5 m above the Virgelle Membr contact.

Biostratigraphy:

Age: Latest Santonian Stage, Early Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material: Incomplete carapce and plastron.

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.

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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.