Genus: Taniwhasaurus HECTOR, 1874
Etymology:
= Lakumasaurus NOVAS, FERENANDEZ, GASPARINI, LIRIO, NUNEZ & PUERTA, 2002
Etymology: Lakuma, spirit of the sea in the mythology of the Yamana Indians from Tierra del Fuego (Gusinde, 1986), Southern Patagonia, and Greek, sauros, ‘lizard’ : Lakuma lizard.
= Yezosaurus OBATA & MURAMOTO, 1977 (nomen dubium)
Etymology: In reference to the Yezo Group, and Greek, sauros, 'lizard'.

Species: oweni HECTOR, 1874
Etymology: In honor of Richard Owen.
= Platecarpus oweni LYDEKKER, 1888

Lectotype: DM R1536

Locality: Haumuri Bluff, Cheviot and Waipara District, South Island, New Zealand.

Horizon:

Biostratigraphy: Lower I. pellucidum zone.

Age: Haumurian, Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: Skull and jaws.

Taniwhasaurus oweni frontal from Welles & Gregg, 1971,

Skull after CALDWELL, HOLMES, BELL JR & WIFFEN, 2005 based on NMNZ R 1532, NMNZ R 1536, KHM N 99-1014/1.

Referred material:

LYDEKKER, 1888

BMNH R876: Tooth.

BMNH R822: Mould of part of the skull.

BMNH R823: Block of matrix with vertebra.

BMNH R824: Matrix with ribs.

BMNH R825: 2 pterygoid teeth.

BMNH R826: Vertebra.

 

Lectotype: NMZ R 1536

Locality: North face of Haumuri Bluff, South of Kaikoura at Spy Glass Point, South Island, New Zealand.

Horizon: Conway Siltstone Formation.

Biostratigraphy:

Age: Lower Haumurian, Lower to Middle Campanian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: Skull roof composed of complete frontal, fragmentary parietal, right and left postorbitofrontals, right prefrontal, fragmentary right maxilla, right pterygoid, and paired dentaries.

 

= Leiodon haumuriensis HECTOR 1874
Etymology:
= Liodon haumuriensis (HECTOR, 1874) HAAST 1879
= Tylosaurus haumuriensis (HECTOR, 1874)  WELLES & GREGG, 1971

Lectotype: DM R1532

Locality: Haumuri Bluff, Cheviot and Waipara District, South Island, New Zealand.

Horizon: Laidmore Formation.

Biostratigraphy:

Age: Haumurian, Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material: Snout composed of right dentary (12-13 teeth), maxilla (13 teeth, premaxilla (2 teeth), prefrontal, and partial right jugal.

Referred material:

LYDEKKER, 1888

BMNH R812: Fragments of skull.

BMNH R813: Portions of mandible with teeth.

BMNH R814: Imperfect vertebrae.

BMNH R815: 2 teeth.

BMNH R815a: Fragments of jaw.

BMNH R816: Impression of vertebra.

BMNH R817: 8 caudal vertebrae.

BMNH R818: A vertebral centrum.

BMNH R819: Partial skull.

CALDWELL, HOLMES, BELL & WIFFEN, 2005

KHM N99-1014/1-5: Skull block in five parts.

(S. haumuriense zone, V. spinulosa subzone)

KHM N99-1014/1: Main block with upper jaws and pterygoid.

KHM N99-1014/2: Small block with skull bones, 1 tooth, and sharks' teeth.

KHM N99-1014/3: Snout.

KNM N99-1014/4: Loose pieces of bone.

KNM N99-1014/5: Lower jaw.

KNHM N99-1015: Block containing 3 caudal vertebrae.

 

= Leiodon haumuriensis HECTOR, 1874

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given:

 

= Liodon haumuriensis HECTOR; HAAST, 1879

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given:

 

= Tylosaurus haumuriensis (HECTOR, 1874)

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given:

 

= Leiodon amuriensis HECTOR, 1880

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given:

 

= Mosasaurus oweni (HECTOR, 1874) BENTON & SPENCER, 1995

Locality: St. James’s Pit, Norwich, (TG 242094), Norfolk County, England, Southern United Kingdom.

Horizon: Upper Chalk (Norwich Chalk).

Biostratigraphy:

Age: Campanian Stage, Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

CAMSM B20627:

____________________________________________________________________________________

Species: capensis (BROOM, 1912) emend JIMENEZ-HUIDOBRO & CALDWELL, 2019
= Tylosaurus capensis BROOM, 1912
Note: Taniwhasaurus indet 2 (Tylosaurus capiensis) JIMENEZ-HUIDOBRO & CALDWELL, 2019
Etymology:

Holotype: SAMK5625

Locality: Transkei (= Pondoland), South Africa.

Horizon: Chalk.

Biostratigraphy:

Age: Late Cretaceous.

Material: Almost complete frontal, anterior portion of parietals and portions of postorbitofrontals.
_____________________________________________________________________________________

Species: antarcticus (NOVAS, FERENANDEZ, GASPARINI, LIRIO, NUNEZ & PUERTA, 2002) MARTIN & FERNANDEZ, 2007
= Lakumasaurus antarcticus NOVAS, FERENANDEZ, GASPARINI, LIRIO, NUNEZ & PUERTA, 2002
Etymology: In reference to Antartica where the specimen was found.

Holotype: IAA 2000-JR-FSM-1

Locality: Dinosaurio River, Santa Marta Cove, NW of James Ross Island, lat. 63°55’S, 57°51’W, Northeast Peninsula, West Antarctica, Antarctica.

Horizon: Gamma Member, Santa Marta Formation.

Biostratigraphy:

Age: Latest Campanian-Early Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: An almost complete skull and articulated denary with teeth, rib fragments and isolated vertebrae.

Referred material:

= Taniwhasaurus antarcticus MARTIN, KIHM, FERNANDEZ, REGUERO & CASE, 2007

Locality: Antartica.

Horizon: Cape Lamb Member, Snow Hill Island Formation.

Biostratigraphy:

Age: Early Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Skull of a juvenile.

____________________________________________________________________________________

Species: mikasensis (OBATA & MURAMOTO, 1997) CALDWELL, KONISHI, OBATA & MURAMOTO, 2008
= Yezosaurus mikasaensis OBATA & MURAMOTO, 1977 (nomen dubium)
Note: Taniwhansaurus indet 1 (Taniwhasaurus mikasaensis) JIMENEZ-HUIDOBRO & CALDWELL, 2019
Etymology: In reference to the city of Mikasa, Hokkaido Island, Japan.

Holotype: MCM.M0009

Locality: East bank of the Katsura creek, about 350m upstream form its junction with Lake Katsurazawa, Mikasa city, Sorachi Prefecture, Hokkaido island, Japan.

Horizon: Kashima Formation, Upper Yezo Group.

Biostratigraphy:

Age: Santonian-Campanian Stage boundary interval, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Mid-section of skull and mandible.

Referred material:

SATO, KONISHI, HIRAYAMA & CALDWELL, 2012

Locality: Haboro area, Hokkaido Island, Japan.

Horizon: Haborogawa Formation, Yezo Group.

Biostratigraphy:

Age: Upper Santonian-Early Campanian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

MCM.A600: Skull elements including partial jugal, postorbitofrontal, and quadrate.

 

Locality: Ikushunbetsu River, Mikasa City, Hokkaido Island, Japan.

Horizon: Kashima Formation, Yezo Group.

Biostratigraphy:

Age: Late Santonian-Early Campanian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

MCM.A1008, M10: Vertebrae.