Species: antiquus (LAMBE, 1902) GAFFNEY, 1972
Etymology:
= Baena antiqua LAMBE ,1902

Holotype: NMC 1648

Locality: Below the Mouth of Berry Creek, Red Deer River, Newell County, Alberta Province, Canada.

Horizon: Judith River Formation, Judith River Group.

Biostratigraphy:

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

Material: The anterior lobe of the plastron and the anterior central area of carapace.

Referred material:

Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material:

UCMP 49759: Skull.

 

BRINKMAN, 2003

Locality: Manyberries area, Forty Mile County, Southern Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.

Biostratigraphy:

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

Material:

RTMP 76.6.35: Carapace, with posterior end.

RTMP 85.11.4:

 

Locality: Manyberries area, Forty Mile County, Southern Alberta.

Horizon: Dinosaur Park Formation, upper Judith River Group.

Biostratigraphy:

Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.

Material:

RTMP 2000.53.1: Complete skull.

 

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 117104: Shell.

 

HUTCHISON & HOLROYD, 2003

Locality: UCM locality 78193, Denver Basin, Colorado.

Horizon: Laramie Formation.

Biostratigraphy:

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

Material:

UCM 49318: Fused posterior part of skull.

 

Locality: UCM locality 80013, Denver Basin, Colorado.

Horizon: Laramie Formation.

Biostratigraphy:

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

Material:

UCM 46377: Anterior part of 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:

BRINKMAN, 2003

ROM 674: Associated skull and carapace.

NMC 8599: Partial skeleton including both lower mandibles, quadrates, partial neck, tail, articulated limbs and shell.

RTMP 86.36.49: Skeleton, including skull, neck, and shell.

RTMP 92.36.681: Skeleton, including partial skull, neck, carapace, and appendicular material.

RTMP 92.36.16: Partial skeleton including carapace, plastron, partial neck, pelvis, and femur.

RTMP 91.36.133: Partial skeleton including carapace, plastron, and partial tail.

RTMP 81.41.103: Skull missing cheek region, and anterior ends of vomer, maxillae and premaxillae.

UALVP 8320: Skull missing right cheek and maxilla, both premaxillae and anterior ends of vomer.

RTMP 93.19.2: Skull missing anterior portion of right maxilla and premaxillae.

RTMP 94.12.273: Complete skull.

RTMP 99.55.145: Large skull.

RTMP 87.48.74: Weathered remains of single skull including both parietals, posterior of left maxilla with parts of jugal preserved in articulation, parts of both otic carpsules, and left quadrate.

RTMP 80.16.678: Partial braincase including wall of braincase.

RTMP 82.30.12: Partial braincase with side wall and basicranial region preserved.

RTMP 79.6.849: Pterygoid.

RTMP 95.12.122, 92.40.33: Complete lower jaws.

RTMP 82.19.25: Lower jaw with right and left rami, missing posterior end of left rami.

RTMP 85.36.162: Lower jaw with complete right ramus and anterior half of left.

RTMP 63. 36.68: Complete left ramus of lower jaw.

RTMP 85.6.84: Complete right and posterior half of left dentary.

RTMP 84.67.34: Right dentary with postdentary bones in articulation.

RMTP 64.4.42: Posterior end of right dentary and postdentary bones.

RTMP 86.185.1: Complete left dentary.

RTMP 86.116.30, 85.36.312, 95.126.13: Left dentaries.

RTMP 85.58.45: Complete carapace and plastron.

RTMP 90.119.1: Complete carapace and plastron.

ROM 41695: Complete carapace and plastron.

RTMP 75.11.55: Nearly complete carapace and plastron.

RTMP 80.16.1693: Nearly complete carapace and plastron.

RTMP 88.36.54: Complete shell.

RTMP 82.21.12: Shell, including complete plastron and posterior end of carapace.

RTMP 74.10.3: Carapace and plastron missing anterior end.

RTMP 87.36.21: Posterior end of carapace and plastron.

RTMP 91.36.229: Posterior end of carapace.

RTMP 90.36.160: Posterior end of carapace.

RTMP 91.36.745: Carapace, with posterior end.

RTMP 96.12.247: Shell, with complete plastron, posterior end of carapace is missing.

RMTP 80.16.1088: Shell, missing posterior end of carapace.

RTMP 80.16.1088: Shell, missing posterior end of carapace.

RTMP 81.16.143: Shell missing anterior end.

RTMP 82.16.126: Shell with complete plastron, carapace, missing left side and posterior end.

 

GAFFNEY, 1972/CASE, 1939

Locality: Near Fort Peck, Garfield County, Montana.

Horizon: Hell Creek Formation.

Biostratigraphy:

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

Material:

UMMP 20490: An almost complete skeleton.

 

/ESTES, 1964
Referred to Eubaena cephalica by Estes.

Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material:

UCMP 49759: Skull and associated right lower jaw.

 

Locality: UCMP V-5711, Bushy Tailed Blowout, Quarry area includes the floor of a small blowout approximately 10 yards northwest of the highest point on the ridge forming the northeastern side of the blowouts of loc. V-5003, S 1/2, Sec. 20, T37N, R64W, Lance Creek, Powder River Basin, Niobrara County, Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material:

Number: Not given: Symphyseal region of lower jaw.

/RUSSELL, 1934

Locality: South branch of Little Sandhill Creek, About 3 miles above the juncture with Red Deer River, 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:

NMC 8599: A damaged shell, cervical and caudal vertebrae, limbs, mandible, and portion of both quadrates.

 

GILMORE, 1919

Locality: 3 miles below Steveville, Red Deer River, 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:

USNM 8801: Almost complete carapace and plastron, the later lacking the anterior lobe.

 

HOLROYD & HUTCHISON, 2002

Locality: V 86063, western North Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

136554: