DONOHUE, WILSON, & BREITHAUPT, 2013

Locality: UCMP V-84215 (= UW V-79032), Black Butte Station fossil localitys, eastern flank of the Rock Springs uplift, Sweetwater County, Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material:

UCMP 197639, 197665: Isolated right p4s.

UCMP 197612: Isolated right m1.

UCMP 197660: Left M2.

UW 20139: Isoalted left p4.

UW 15165, 20075, 20090, 20117: Isolated right m1s.

UW 20048: Isolated left m1.

UW 15162, 15194, 20042, 20063, 20065, 20091: Isoalted left m2s.

UW 15163, 15176, 20043, 20069, 20082, 20102: ISoalted right m2s.

Locality: Dino Ray (UW loc. V-79033), Black Butte Station fossil localitys, eastern flank of the Rock Springs uplift, Sweetwater County, Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material:

UW 20136: Isolated right m1.

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HUNTER, HEINRICH & WEISHAMPEL, 2010

Locality: Shell Hell, Mor Locality 703, SW 1/4 section 19, Township 31 North, Range 9 W, Glacier County, Montana.

Horizon: St. Mary River Formation.

Biostratigraphy:

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

Material:

MOR 2535: Rm1.

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= Mesodma cf. M. formosa RUSSELL, 1987 (move to Neoplagiaulacidae incertae sedis EVANS, BARRETT & SEYMOUR, 2012)

Locality: Henry Farm Locality, 1s, 8, sec. 5, tp 39, rge 22, W4thM, north side of the Red Deer River valley, Alberta Province, Canada.

Horizon: Scollard Formation, Uppermost Edmonton Group.

Biostratigraphy:

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

Material:

ROM 26350: Left P1 lacking posterior third.

ROM 26351: left P1, lacking posterior
half.