Genus: Edmontonia C. M. STERNBERG, 1928
Etymology: In reference to the Late Cretaceous Edmonton Formation in Alberta Canada.
= Edmontonia Subgenus Edmontonia BAKKER, 1988
= Edmontia HUNT & LUCAS, 1992 (sic)

Species: longiceps STERNBERG, 1928
Etymology: Laitn, longi, "long" and Latin, -ceps, "head."
= Panoplosaurus longiceps (STERNBERG, 1928) COOMBS, 1979
= Edmontonia Subgenus Edmontonia longiceps (C. M. STERNBERG, 1928) BAKKER, 1988
= Edmontia longiceps HUNT & LUCAS, 1992 (sic)

Holotype: NMC 8531

Locality: 20 feet above the Red Deer River, Sec. 28, T31, R21, West of the Fourth Meridian, 7 miles northwest of Morrin, Wheatland County, Alberta Province, Canada.

Horizon: Horseshoe Canyon Formation, Edmonton Group.

Biostratigraphy:

Age: Edmontonian age, lower Maastrichtian Stage, Upper Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Skull, right ramus, most of the dorsal vertebrae and ribs, sacrum and pelvic arch, 9 caudal vertebrae, 1 fore limb, most of 1 hind limb, other bones, xiphisternum, and numerous dermal scutes.

Teeth.

After BAKKER, 1988

Skull.

Lateral pectoral armor.

Referred material:

COOMBS, 1971

Locality: Alberta Province, Canada.

Horizon: Judith River Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

ROM -1935: Partial skull.

 

SAHNI, 1972

Locality: Clambank Hollow, Montana.

Horizon: Judith River Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

AMNH 8543: Tooth.

 

= Edmontonia affin. longiceps BAKKER, 1988

Locality: Alberta Province, Canada.

Horizon: Judith River Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

ROM 1794: Fragmentary skull.

 

= Edmontonia cf. longiceps LANGSTON, 1975

Locality: Scabby Butte Site 3, on an erosional bench on the westward promontory near the northeast corner of NE 1/4, SE 1/4, Sec. 18, Lethbridge County, Southern Alberta Province, Canada.

Horizon: St. Mary River Formation.

Biostratigraphy:

Age: Edmontonian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

NMC 21864: A broken tooth.

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Species: australis FORD, 2000
Etymology: Latin, australis, “southern”, in reference to this species being known from the southern United States.

Holotype: NMMNH P-25063

Locality: NMMNH locality 3533, San Juan Basin, New Mexico.

Horizon: Naashoibito Member, Latest Kirtland Formation.

Biostratigraphy:

Age: Kirtlandian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: A pair of cervical medial scutes.

Hypodigum

NMMNH P-27450: A well preserved right medial cervical scute.

NMMNH P-27420: Primary cervical scute.