Species: gigas COPE, 1871
Etymology:
= Atlantochelys gigas (COPE, 1871) DANA, 1875
Holotype: AMNH 1503
Locality: Butte Creek, south of Wallace, Wallace County, Kansas.
Horizon:
Biostratigraphy:
Age: Late Cretaceous.
Material: Fragmentary skull and skeleton.
Referred Material:
AMNH 1502:
CASE, 1897
Locality: 2.5 miles southeast of Elkader, Sec. ii, T15S, R32W, Logan County, Kansas.
Horizon: Smoky Hill Member, Niobrara Formation.
Biostratigraphy:
Age: Santonian or Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
KUVP 1208: Ischium, humerus, ribs and plastron.
COPE, 1897
Locality: Charley Bennett Ranch, west of Russell Springs, T13S, R35W, Logan County, Kansas.
Horizon: Smoky Hill Member, Niobrara Formation.
Biostratigraphy:
Age: Santonian or Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
KUVP 1202: Incomplete plastron with nuchal plate and marginalia.
WILLISTON, 1902
KUVP 1201: Hind limb, missing some phalangel elements.
Locality: Unknown, Logan County, Kansas.Horizon: Smoky Hill Member, Niobrara Formation.
Biostratigraphy:
Age: Santonian or Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
KUVP 4863: Humerus, scapula, coracoid, pubis, femur.
DANILOV, OBRAZTSOVA, ARKHANGELSKY, IVANOV & AVERIANOV, 2022
Locality: Beloe Ozero Locality, Saratov Province, European Russia.
Horizon: Rybushka Formation.
Bistratigraphy:
Age: Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
ZIN PH: 1/244: Left maxilla.
ZIN PH: 2/244: Partial right maxilla.
ZIN PH: 3/244: Right jugal.
ZIN PH: 4/244: ?Partial right quadratojugal.
ZIN PH: 5/244: Partial right squamosal.
ZIN PH: 6/244: Neural.
ZIN PH: 7, 8/244: Bridge 0eripherals.
ZIN PH: 9/244: Posterior peripheral.
ZIN PH: 10/244: Fragment of the left hypoplastron.
ZIN PH: 11/244: Fragment of the right scapula.
ZIN PH: 12/244: Proximal fragment of the right humerus.
ZIN PH: 13/244: Proximal fragment of the left humerus.
HAY, 1895
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Number: Not given: Fragmentary skeleton.
HAY, 1908
Locality: Near Hackberry Creek, Gove County, Kansas.
Horizon:
Biostratigraphy:
Age: Late Cretaceous.
Material:
CM 1421: Nearly complete skull, humerus, radius, ulna, most of the carpal bones, and some phalanges of the right flipper, the nucal and first three peripherals.
Locality: Twin Butte Creek, Logan County, Kansas.Horizon:
Biostratigraphy:
Age: Late Cretaceous.
Material:
CM 1393: Various portions of the plastron, limbs and skull.
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
CM 1420: Fragmentary shell.
STERNBERG
Locality: Kansas.
Horizon: Niobrara Formation.
Biostratigraphy:
Age: Late Cretaceous.
Material:
Number: Not given: Fragmentary plastron and skeleton.
ZANGERL, 1953
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
USNM 11651: Fragmentary skeleton.
USNM 11652: Partial skeleton.
= Protostega potens HAY 1908
Etymology:Holotype: AMNH 180
Locality: Near Elkader, Logan County, Kansas.
Horizon: Niobrara Formation.
Biostratigraphy:
Age: Late Cretaceous.
Material: Fragmentary skull, skeleton and shell.
Referred material:
FMNH UR79: Fragmentary remains.
= Protostega dixie ZANGERL 1953
Etymology:Holotype: FMNH P27314
Locality: Harrell Station, southeast of Marion junction, Dallas County, Alabama.
Horizon: Mooreville Chalk, Selma Formation.
Biostratigraphy: Middle Tylosaurus Acme-zone – Clidastes Acame zone.
Age: Niobraran age, Upper Santonian-Lower Campanian Stage, Senoniain Subepoch, Gulf Epoch, Late Cretaceous.
Material: Nearly complete skull.
Referred material:
FMNH P27315: Skull, jaws, nuchal, neurals, peripherals, plastron, humeri and other limb-bone fragments and ribs.
FMNH P27353: Scapula and coracoid.
FMNH P27368: Rib.
FMNH P27482: Humerus and 5th cervical vertebra.
FMNH P27427: Rib fragment.
FMNH PR71: Peripheral and rib fragments.
FMNH PR70: 2 peripheral and vertebra.
FMNH PR69: Rib.
FMNH PR133: Fragments of carapace, plastron and skull.
FMNH PR190: Peripheral plate.
FMNH PR66: Carapace and plastral fragments.
FMNH PR197: Skull bones.
FMNH PR134: 2 plasterl plates.
FMNH PR203: Partial carapace and plastron.
FMNH PR198: Carapace and plastral fragments.
FMNH PR72: Partial plastron.
Locality: Crawford Farm, Cedarville, Hale County, Alabama.
Horizon: Selma Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
FMNH P27319: Parts of skull, carapace, plastron, humerus, girdle, vertebrae.
FMNH PR68: Miscellaneous fragments of shell.
Locality: Landis Brown Farm and Banks Farm, Eutaw, Greene County, Alabama.
Horizon: Moorvelle Chalk, Selma Formation.
Biostratigraphy:
Age: Latest Santonian Stage-Earliest Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
FMNH P27441: Peripheral.
FMNH P27473: Shell fragments.
FMNH P27471: Plastron.
FMNH P27452: Limb-bone fragments, carapace and plastron.
Note: Has 5 tooth fragments of Cretoxyrhina mantelli inbedded in the left humerus and tooth marks presumably made by the same shark are present on the exterior surface of the left hyoplastron (SHIMIDA, EVERHART & HOOKS, 2002).FMNH P27385: Jaw, nuchal, suprapygal, skull, rib, several peripherals.
FMNH PR67: Carapace fragments.
FMNH PR132: Caudal vertebrae, partial carapace, limb bones, and skull.
FMNH PR151: 2 neurals, atlas, axis, girdle, and costal plate.
FMNH PR147: Humerus.
Locality: Hewlett Farm, Boligee, Greene County, Alabama.Horizon: Selma Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
FMNH PR58: 3 peripherals.
Note: Two of the bones has teeth marks from Cretoxyrhina mantelli (SHIMIDA & HOOKS, 2004)
Locality: Outcrop Area about 2 1/2 miles Southeast of Town, Mount Hebron, Greene County, Alabama.
Horizon: Selma Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
FMNH PR21: Partial plastron, girdle, and rib.
FMNH PR114: 2 costal plates.
FMNH PR64: Fragmentary peripherals.
FMNH PR65: Skull, jaw and carapace fragments.
Locality: Outcrop Area about 3 1/2 miles Northwest of Town, West Greene, Greene County, Alabama.
Horizon: Selma Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
FMNH PR174: Plastral fragments.
FMNH PR1632: Plastron.
FMNH PR159: Incomplete plastron.
FMNH PR170: Incomplete skull.
FMNH PR177: Jaw.
HOOKS, 1998
AUMP 412:
SCHWIMMER, STEWART & WILLIAMS, 1997Locality: Dallas County, Alabama.
Horizon: Mooreville Chalk, Selma Formation.
Biostratigraphy: Middle Tylosaurus Acme-zone – Clidastes Acame zone.
Age: Niobraran age, Upper Santonian-Lower Campanian Stage, Senoniain Subepoch, Gulf Epoch, Late Cretaceous.
Material:
ALAM PV985.10.2: Small left humerus.
Note: Numerous bite marks on internal and external surfaces, concentrated on both ends and below the ulnar process from a shark.
ZANGERL, 1953
Locality: Near Eutaw, Greene County, Alabama.
Horizon: Mooreville Chalk, Selma Formation.
Biostratigraphy: Middle Tylosaurus Acme-zone – Clidastes Acame zone.
Age: Niobraran age, Upper Santonian-Lower Campanian Stage, Senoniain Subepoch, Gulf Epoch, Late Cretaceous.
Material:
FMNH P27385: Fragmentary dentary.
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Species: eaglefordensis ZANGERL, 1953
Etymology: In reference to the Eagle Ford Formation, where the specimen was found.
Holotype: TMM 924
Locality: Lake Waco Dam, McLennan County, Texas.
Horizon: Uppermost part of the lower shale, from 6 to 10 feet below the Flab Member of the Eagle Ford Formation.
Biostratigraphy:
Age: Late Cretaceous.
Material: Several ribs, costal plates, a displaced nuchal that lies partly
buried under proximal rib ends, 1 coaracoid, both humeri, both zeugopodia of
the arm, both carpi and much of the right ramus as well
as the left pubis and ischium.
Note: This species is believed to belong to a new genus by HOOKS, 1998.