Species: formosa (MARSH, 1889) JEPSEN, 1940
Etymology:
= Halodon formosus MARSH, 1889
Holotype: YPM 11812
Locality: Peterson's quarry, Lance Creek Region, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Left LP4.
Referred material:
ARCHIBOLD, 1982
Locality: UCMP V73087, Flat Creek 5, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 115931: LP4.
UCMP 115935: UM1.
UCMP 116585: LM1.
4 UP4.
Locality: UCMP V73090, Reid Coulee 1, Garfield County, Montana.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: LM2.
Locality: UCMP V72213, Trubo's Anthill, Garfield County, Montana.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: LM1.
Locality: UCMP V74116, Baldy Butte SW Blazing Saddle, Garfield County, Montana.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Teeth.
CLEMENS, 1963
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:
AMNH 57583: Fragment of mandible with LP3-4.
UCMP 46407: Fragment of mandible with LP3-4.
UCMP 46408: Fragment of mandible with LP4.
UCMP 51450: Fragment of mandible with LI1 and LP3-4.
UCMP 47025: Fragment of mandible with LP3-4 and LM1-2.
Plus 106 isolated teeth.
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:
AMNH 57584: Fragmentary mandible with LP3-4.
AMNH 57585: Fragmentary mandible with LP3-4.
Plus 61 isolated teeth.
Locality: UCMP V-5815, Hatcher Number 2, western side of a cross-stratified sandstone erosional remnant near the center of a large blowout on the crest of a ridge, the distance form the nearest point on the road, approximately 150 yards south of the quarry, to the Johnson ranch is 0.4 miles, Eastern Wyoming.Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 51471: Fragment of mandible with LP3-4.
Numbers: Not given: Plus 21 isolated teeth.
Localities: V-5616, V-5619, Peterson's quarry of LULL (1915), Wyoming.
Locality: UCMP V-5003, S 1/2, Sec. 20, T37N, R64W, Lance Creek, Powder River Basin, Niobrara County, Wyoming.
Locality: UCMP V-5817, False Disciple Point, cross-stratified sandstone and sandy shales cropping out on the top of the northern end of a long, northwestward-trending ridge that extends from the crest of the divide between the Hancock and Lance Creek drainages, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Numbers: Not given: Fragmentary mandibles and isolated teeth.
DONOHUE, WILSON, & BREITHAUPT, 2013
Locality: UCMP V-84215 (= UW V-79032), Black Butte Station fossil localitys, eastern flank fo 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 197624: Isolated rigth m1.
UCMP 19736: Isolated left m2.
UW 15175, 15187, 25162: Isolated m2s.
UW 15150, 15168, 15189, 20038, 20068: Isolated left M21.
UW 15185: ISolated right M2.
sp. cf. M. formosa EATON, 1993Locality: MNA locality 1073, near the junction of Mill Creek and the East Fork of the Sevier River, Podunk Creek, USGS 7.5 minute Quadrangle, Paunsaugunt Plateau, Utah.
Horizon: Upper Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
MNA V5799: LP4.
MNA V6451: RP4.
MNA V6475: Lm2.
EATON & CIFELLI, 1988
Locality: Kaiparowits Plateau, Utah.Horizon: Wahweap Formation.
Biostratigraphy:
Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Kaiparowits Plateau, Utah.Horizon: Upper Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: 7599, Burnham South is located about 3 km south of Brunham Trading Post, 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:
NMMNH P-49781 (= UALP 15641): Left posterior half of P4.
NMMNH P-49782 (= UALP 15644): Posterior fragment of right LM1.
Locality: 8020, Jon Powell Microsite, 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:
NMMNH P-49829 (= UALP 15642): Left UP4.
NMMNH P-49830 (= UALP 15643): Posterior half of right UM1.
EATON, & CIFELLI, 2013
Locality: Locality 61, Grand Staircase, Kane County, Utah.
Horizon: Wahweap Formation.
Biostratigraphy:
Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
UMNH VP 7744: Lm1.
Locality: Locality 77, Grand Staircase, Kane County, Utah.
Horizon: Wahweap Formation.
Biostratigraphy:
Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
UMNH VP 14273 (BRCA 5964): Lm2.
Locality: Locality 1074, Grand Staircase, Kane County, Utah.
Horizon: Wahweap Formation.
Biostratigraphy:
Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
MNA V5802: Rm1.
FOX, 1989
Locality: Wounded Knee local fauna, a roadcut along Rte. 37, approximately 34 km south of Shaunavon, Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UALVP 22653: LP4.
UALVP 22654: LP4.
UALVP 22657, UALVP 22658: LM1's.
UALVP 22655, UALVP 22656: UP4's.
UALVP 22659, UALVP 22662: UM1's.
UALVP 22660, UALVP 22661: UM2's.
LILLEGRAVEN, 1969Localities: KUA-1, 3, 22, Stettler County, 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:
UA 3234: Fragmentary mandible with LP3-4.
UA 2297, 2380, 2450, 2506, 2601, 2804, 3379, 3472, 3901, 3903, 3909, 3982, 3996, 4027, 4037: LP4.
UA 3338, 3340, 3434, 3470, 3574, 3929, 3880, 3886, 3893, 3894, 3897, 3899, 3921, 4029: LM1.
UA 2756, 3321, 3341, 3380, 3396, 3606, 3832, 3836, 3840, 3841, 3846, 3853, 3860, 3862, 3922, 3931, 3934, 4033: LM2.
UA 2243, 3319, 3331, 3471, 3530, 3854, 3962: UP1.
UA 2438, 3842, 3939: UP3.
UA 2248, 2339, 2890, 3332, 3479, 3895, 3896, 3902, 3905, 3906, 3907, 3908, 3910, 3912, 3913: UP4.
UA 2802, 2870, 3128, 3264, 3318, 3264, 3333, 3861, 3882, 3884, 3900, 3961, 3967, 3973: UM1.
UA 2352, 2714, 2788, 2803, 3168, 3188, 3254, 3336, 3540, 3544, 3550, 3837, 3839, 3848, 3925, 3940, 3943, 3970: UM2.
LILLEGRAVEN, 1972Localities: LAV-7170 and LAV-7171, Near El Rosario, Baja California State, Mexico.
Horizon: “EL Gallo Formation”, Middle one-third of the Upper Campanian.
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
LACM 27588: M1 fragment.
LACM 27589: M2.
LACM 27590: m2.
SAHNI, 1972Locality: Clambank Hollow, Chouteau County, Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
AMNH 77273: Lower incisor.
AMNH 77121: LP4.
AMNH 77122: LP4.
AMNH 77123: LP4.
AMNH 77125: LM1.
AMNH 77126: LM2.
AMNH 77149: Fragmentary maxilla with UP2 and UP3.
AMNH 77150: UP4.
AMNH 77154: UM1.
AMNH 77159: UM2.
SLOAN & VAN VALEN, 1965Locality: Bug Creek Anthills, Western McCone County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragmentary skull and fragmentary skeleton.
STORER, 1991
Locality: Gryde Local Fauna, Southwestern Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
LP1: P1927.76, P1927.168, P1927.302, P1927.441, P1927.490, P1927.529, P1927.693, P1927.772, P2004.73, P2004.172-178.
RP1: P1927.259, P1927.275, P1927.284, P1927.308, P1927.338, P1927.339, P1927.368, P1927.400, P1927.511, P1927.722, P2004.101, P2004.179-185.
Left maxillary fragment with P1-2: P2004.171.
LdP2: P1927.336, P2004.186, P2004.187.
LP2: P1927.82, P1927.95, P1927.235, P1927.251, P1927.332, P1927.582, P2004.14, P2004.36, P2004.188-194
.
RP2: P1927.295, P1927.386, P1927.463, P1927.780, P2004.195-197.LP3: P1927.263, P1927.419, P1927.508, P1927.554, P1927.725, P2004.198, P2004.199.
RP3: P2004.66, P2004.77, P2004.201, P2004.202.
LP3: P1927.263, P1927.419, P1927.508, P1927.554, P1927.725, P2004.198, P2004.199.
LP4: P1927.87, P1927.94, P1927.105, P1927.120, P1927.143, P1927.218, P1927.222, P1927.260, P1927.365, P1927.430, P1927.526, P1927.658, P1927.673, P1927.694, P2004.34, P2004.102, P2004.203-209.
RP4: P1927.104, P1927.172, P1927.185, P1927.187, P1927.189, P1927.200, P1927.355, P1927.533, P1927.566, P1927.610, P1927.630, P1927.675, P1927.757, P2004.33, P2004.56, P2004.210-217.
LM1: P1927.206, P1927.229, P1927.296, P1927.364, P1927.428, P1927.650, P1927.745, P2004.9, P2004.39, P2004.218-231.
RM1: P1927.178, P1927.256, P1927.309, P1927.314, P1927.370, P1927.445, P1927.528, P1927.570, P1927.703,P1927.719, P1927.741, P1927.752, P2004.32, P2004.40, P2004.81, P2004.232-247, P2051.3.
Right Maxillary fragment with M1-2: P1927.21.
LM2: P1927.145, P1927.334, P1927.342, P1927.407, P1927.424, P1927.506, P1927.557, P1927.592, P1927.604, P1927.769, P2004.25, P2004.248-253.
RM2: P1927.146, P1927.186, P1927.208, P1927.350, P1927.366, P1927.397, P1927.427, P1927.429, P1927.482, P1927.541, P1927.707, P1927.750, P2004.53, P2004.254-264.
Lp4: P1927.34, P1927.90, P1927.110, P1927.181, P1927.266, P1927.303, P1927.384, P1927.387, P1927.401, P1927.483, P1927.507, P1927.518, P1927.558, P1927.616, P1927.623, P1927.634, P1927.683, P1927.763, P1927.768, P2004.5, P2004.265-270.
Rp4: P1927.109, P1927.112. P1927.119, P1927.180, P1927.204, P1927.413, P1927.475, P1927.519, P1927.520, P1927.550, P1927.571, P1927.686, P1927.775, P2004.271-275.
Lm1: P1927.86, P1927.122, P1927.217, P1927.293, P1927.527, P1927.571, P1927.626, P1927.709, P2004.21, P2004.44, P2004.69, P2004.96, P2004.276-284, P2004.286-290.
Rm1: P1927.138, P1927.140, P1927.227, P1927.264, P1927.286, P1927.343, P1927.438, P1927.443, P1927.540, P1927.740, P2004.38, P2004.291-301.
Lm2: P1927.195, P1927.278, P1927.237, P1927.358, P1927.471, P1927.567, P1927.629, P1927.681, P1927.711, P1927.717, P1927.1035, P2004.97, P2004.302-307.
Rm2: P1927.403, P1927.408, P1927.422, P1927.531, P1927.572, P1927.688, P1927.723, P2004.28, P2004.37, P2004.43, P2004.308-314.
WILSON, 1990Locality: SDSM locality V701, Red OWL Quarry, 3 miles north and 1 mile east of Red Owl, Meade County, South Dakota.
Horizon: Fox Hills Formation.
Biostratigraphy:
Age: Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.
Material:
SDSM 13032: Right ramus with P4-M1.
SDSM 13264: Left P4.
SDSM 13265: Right P4.
SDSM 13266: Right P4.
SDSM 13267: Left P4.
SDSM 13268: Right P4.
SDSM 13269: Right P4.
SDSM 13270: Left P4.
SDSM 13271: Left P4.
SDSM 13272: Left P4.
SDSM 13273: Left P4.
SDSM 13274: Left P4.
SDSM 13275: Right M1.
SDSM 13276: Left M1.
SDSM 13277: Left M1.
SDSM 13278: Right M1.
SDSM 13279: M2.
SDSM 13280: Left M2.
SDSM 13281: Left M2.
SDSM 13282: Right M2.
SDSM 13283: Right M2.
SDSM 13284: Left M2.
SDSM 13285: Right M2.
SDSM 13286: Right M2.
SDSM 13287: Right M2.
SDSM 13288: Right M2.
SDSM 13289: Left M2.
SDSM 13290: Left M2.
SDSM 13291: Right p4.
SDSM 13292: Left p4.
SDSM 13293: Left m1.
SDSM 13294: Left m1.
SDSM 13295: Left m1.
SDSM 13296: Left m1.
SDSM 13297: Left m1.
SDSM 13298: Left m2.
SDSM 13299: Left m2.
SDSM 13300: Right m2.
SDSM 13301: Left m2.
SDSM 13302: Left m2.
SDSM 13303: Left m2.
SDSM 13304: Left m2, m1.
SDSM 13305: Left m2.
SDSM 13306: Left m2.
SDSM 13307: Right m2.
= Mesodma cf. M. formosa WILSON, DECHENSE & ANDERSON, 2010
Locality: The Dog Pond Area, Lar 5, DMNH loc. 3318, Pawnee National Grasslands, Cheyenne basin, Weld County, Colorado.
Horizon: Upper Laramie Formation.
Biostratigraphy:
Age: Late Edmontonian or early Lancian Age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
DMNH 52512: Right p4.
_____________________________________________________________________________________
Species: premaeva (LAMBE, 1902) JEPSEN, 1940
Etymology:
= Ptilodus primaeuvs LAMBE, 1902
Holotype: NMC 1890
Locality: In the Valley of Red Deer River near Steveville, 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: Fragmentary right mandible with lp4 and lm1.
Referred material:
KOSTER, CURRIE, EBERTH, BRINKMAN, JOHNSTON & BRAMAN, 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:
LILLEGRAVEN & MCKENNA, 1986Locality: Barwin Quarry, (Unnamed AMNH locality; no field numbers, 37 m northeast of False Rocks (UW V-10006), Wind River Basin, Natrona county, Wyoming.
Horizon: "Mesaverde" Formation.
Biostratigraphy:
Age: Judithian Age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
AMNH 86305, 86323: LP4.
AMNH 59697, 86304: UP4.
Locality: False Rocks (UW V-1006 = UMCP V-1101) Wind River Basin, Natrona County, Wyoming.Horizon: "Mesaverde" Formation.
Biostratigraphy:
Age: Judithian Age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
UW 15539: Right lower P4.
MONTELLANO, 1992Locality: UCMP V-77083, Makela’s French 1, Mammal 1, Kennedy Coulee, Sections 10, 19, 29, and 30, Township 37N, Range 9E, and in Sections 23, and 24, Township 37N, range 8E, approximately 40 km north of Rudyard, Hill County, Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: 3 P4.
Locality: UCMP V-81234, Put’s Plunder, Kennedy Coulee, Sections 10, 19, 29, and 30, Township 37N, Range 9E, and in Sections 23, and 24, Township 37N, range 8E, approximately 40 km north of Rudyard, Hill County, Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: 3 P4.
Locality: UCMP V-78098, Garbani 1, Havre Badlands, Hill County, Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: 2 M2, and 1 M1.
SAHNI, 1972
Locality: Clambank Hollow, Chouteau County, Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
AMNH 77176: Calcaneum.
_____________________________________________________________________________________
Species: thompsoni CLEMENS, 1963
Etymology:
Holotype: UCMP 47217
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: Left LP4.
Referred material:
UCMP 51444: Fragmentary mandible with LP4 and LM1.
Numbers: Not given: 68 isolated teeth.
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:
Numbers: Not given: 47 isolated teeth.
Localities: UCMP loc. V-5002, V-5619, V-5622, V-5713, and V-5819, Wyoming.
Localities: UCMP V-5616, Altman Blowout, this large blowout, site of the UCMP field-party camps form 1956 to 1960, is just east of the crest of the divide separating Lance Creek and Hancock Creek and 100 yards east of a dirt road. Fossils were found in anthills, talus, and sandstone exposed in the blowout, which is in the NE 1/4, Sec. 9, T37N, R64W, Eastern Wyoming.7
Locality: UCMP V-5815, Hatcher Number 2, western side of a cross-stratified sandstone erosional remnant near the center of a large blowout on the crest of a ridge, the distance form the nearest point on the road, approximately 150 yards south of the quarry, to the Johnson ranch is 0.4 miles, Eastern Wyoming.
Locality: UCMP V-5817, False Disciple Point, cross-stratified sandstone and sandy shales cropping out on the top of the northern end of a long, northwestward-trending ridge that extends from the crest of the divide between the Hancock and Lance Creek drainages, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Numbers: Not given: Isolated teeth.
ARCHIBALD, 1982Locality: UCMP V73087, Flat Creek 5, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: LP4, LM1, s UP4, 4 UM1.
Locality: UCMP V72212, Engdahl Anthills 1, Garfield County, Montana.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: LP4.
Locality: UCMP V74116, Baldy Butte SW Blazing Saddle, Garfield County, Montana.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: LP4.
Locality: UCMP V73076, Engdahl Anthills 2, Garfield County, Montana.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Teeth.
Locality: UCMP V73078, Engdahl Anthills 4, Garfield County, Montana.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Teeth.
Locality: UCMP V73090, Reid Coulee 1, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 116607: Teeth.
Locality: UCMP V75157, Haley Locality, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Teeth.
= Mesodma sp. cf. M. thompsoni BOYD, PERSON & BARNES, 2017
Locality: NDGS L226 (= PTRM V98027), Slope County, southwestern North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
NDGS 1789: Right M1.
DONOHUE, WILSON, & BREITHAUPT, 2013
Locality: UCMP V-84215 (= UW V-79032), Black Butte Station fossil localitys, eastern flank fo 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 197616, 197650: Isolated left m1s.
UW 15152, 20153: ISolated left m12.
UW 15164, 20106: Isoalted right m2s.
= Mesodma cf. M. thompsoni
UW 20145: Isolated left p4.
EATON & CIFELLI, 1988Locality: Kaiparowits Plateau, Utah.
Horizon: Lower Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Kaiparowits Plateau, Utah.
Horizon: Upper Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
= Mesodma cf. M. thompsoni HUNTER, HARTMAN & KRAUSE, 1997Locality: Muddy Tork Locality, Makoshika State Park, Williston Basin, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 845: RM1.
MOR 843: Rm1.
MOR 844: Rm2.
HUNTER & ARCHIBALD, 2002Locality: PTRM locality V89004, Miller Ranch Locality, North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
PTRM 1119: Left dentary with p3-p4.
Locality: PTRM locality V92067, Sunset Butte locality, North Dakota.Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
PTRM 1227: Left p4.
LILLIGRAVEN, 1966Localities: KUA-1, 22, UA-3, Stettler County, 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:
UA 3131: LP3.
UA 657, 2249, 2348, 2401, 2412, 2507, 2865, 3038, 3144, 3234, 3255, 3691, 3695, 3734, 3926, 3974, 3975: LP4.
UA 3654: LM1.
UA 3536, 3616: LM2.
UA 2360, 3110, 3303, 3383, 3790, 3885: UM1.
UA 2563, 3687: UM2.
SLOAN & RUSSELL, 1974Locality: Scabby Butte, northwest of Lethbridge, Lethbridge County, Southwestern 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 17665: Left P3.
cf. thompsoni STORER, 1991
Locality: Gryde Local Fauna, Southwestern Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
LdP2: P1927.308, P2004.200.
LP2: P1927.640.
RP2: P1927.210, P1927.547.
LP3: P1927.487, P2004.315-318.
RP3: P1927.300, P2004.319-321.
LM1: P1927.376, P1927.437.
Lp3: P1927.426.
Lower mandibular fragment with p3-4: P1927.14.
Right mandibular fragment with p3-4: P1927.667.
Lp4: P1927.305, P1927.359, P1927.412, P1927.548, P1927.573, P1927.614, P1927.748, P2004.107, P2004.322-324.
Rp4: P1927.88, P1927.320, P1927.524, P1927.714, P1927.743, P2004.325.
Lm1: P1927.452, P2004.327.
Lm2: P2004.329, P2004.330.
WILSON, 1990Locality: SDSM locality V701, Red Owl Quarry, 3 miles north and 1 mile east of Red Owl, Meade County, South Dakota.
Horizon: Fox Hills Formation.
Biostratigraphy:
Age: Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.
Material:
SDSM 13389: Right P4.
_____________________________________________________________________________________
Species: hensleighi LILLEGRAVEN, 1969
Etymology:
Holotype: UA 3596
Locality: Loc. KUA-1, SW `/4, SE 1/4, sec 18, T34N, R21W, Stettler County, 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: Left LP4.
Paratypes:
UA 3762: Left mandible fragment with LM1.
UA 3250: Left mandible fragment with LM2.
UA 3852: Isolated right UP4.
UA 3844: LUM1.
UA 3335: LUM2.
Referred material:
Localities: KUA-1, 3, 22, Stettler County, 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:
UA 2886, 3337, 3916: LLP4.
UA 33220, 3505, 3850, 3856, 4006: LM1.
UA 3972: LM2.
UA 3838: UP3.
UA 3388, 3984, 4026: UP4.
UA 3334, 3833, 3843, 3855, 3881, 3883, 3887, 3888: UM1.
UA 3546, 3834, 3835, 3845, 3858, 3889, 3971: UM2.
ARCHIBALD, 1982Locality: UCMP V73087, Flat Creek 5, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 115960: Mandible fragment with M2.
UCMP 115961: 3 LP4's, 11 LM1's, 3 LM2's, 2UP4's, 2 UM1's, 15 UM2's.
DONOHUE, WILSON, & BREITHAUPT, 2013
Locality: UCMP V-84215 (= UW V-79032), Black Butte Station fossil localitys, eastern flank fo 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 15157: Isolated left p4.
UW 15172: Isolated right m1.
UW 15190: Isolated left m2.
UW 201119, 20146: Isolated right M1s.
sp cf. hensleighi EATON, 1993Locality: MNA locality 1073, near the junction of Mill Creek and the East Fork of the Sevier River, Podunk Creek, USGS 7.5 minute Quadrangle, Paunsaugunt Plateau, Utah.
Horizon: Upper Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
MNA V6458: Lm1.
MNA V6474: RM1, posterior half.
EATON & CIFELLI, 1988Locality: Kaiparowits Plateau, Utah.
Horizon: Lower Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Kaiparowits Plateau, Utah.Horizon: Upper Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
STORER, 1991
Locality: Gryde Local Fauna, Southwestern Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
RP1: P1927.549, P2004.132.
R maxillary fragment with P1-2: P1927.410.
LdP2: P1927.292.
LP3: P1927.431.LP4: P1927.203, P1927.398, P1927.767, P2004.133-135.
RP4: P1927.115, P1927.170, P1927.188, P1927.197, P1927.301, P1927.374, P1927.501, P1927.509, P1927.544, P1927.659, P 1927.698, P2004.80, P2004.92, P2004.98, P2004.138, P2004.139.
RM1. P1927.93, P1927.148, P1927.184, P1927.253, P1927.373, P1927.394, P1927.620, P1927.657, P2004.140, P2004.141.
LM2: P1927.499, P1927.513, P1927.556, P1927.635, P2004.142-144. P2004.339, P2004.340.
RM2: P1927.406, P2004.145, P2004.146.
LP4. 1927.248, P1927.282, P1927.515, P1927.563, P1927.574, P1927.599, P1927.729, P2004.54. P2004.85, P2004.100, P2004.147-150.
Rp4: P1927.258, P1927.776, P2004.152, P2004.153.
Lm1: P1927.246, P1927.617, P1927.689, P1927.733, P2004.155, P2004.156, P2004.285.
Rm1: P1927.288, P1927.491, P1927.622, P2004.157-159.
Lm2: P1927.102, P1927.349, P2004.59.
Rm2: P1927.597, P2004.7, P2004.78, P2004.79.
WILSON, 1990Locality: SDSM locality V701, Red Owl Quarry, 3 miles north and 1 mile east of Red Owl, Meade County, South Dakota.
Horizon: Fox Hills Formation.
Biostratigraphy:
Age: Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.
Material:
SDSM 13232: Right P4.
SDSM 13233: Left P4.
SDSM 13234: Right M1.
SDSM 13235: Right M1.
SDSM 13236: Left M1.
SDSM 13237: Left M1.
SDSM 13238: Right M1.
SDSM 13239: Right M1.
SDSM 13240: Right M1.
SDSM 13241: Right M1.
SDSM 13242: Left M1.
SDSM 13243: Left M1.
SDSM 13244: Left M1.
SDSM 13245: Left M2.
SDSM 13246: Left M2.
SDSM 13247: Right M2.
SDSM 13248: Right M2.
SDSM 13249: Left M2.
SDSM 13250: Right M2.
SDSM 13251: Left M2.
SDSM 13252: Left M2.
SDSM 13253: Left M2.
SDSM 13254: Left M2.
SDSM 13255: Right M2.
SDSM 13256: Left m1.
SDSM 13257: Left m1.
SDSM 13258: Left m2.
SDSM 13259: Right m2.
SDSM 13260: Left m2.
SDSM 13261: Left m2.
SDSM 13262: Left m2.
SDSM 13263: Left m2.
_____________________________________________________________________________________
Species: senecta FOX, 1971
Etymology:
Holotype: UA 5378
Locality: Loc. UA-MR-4, Verdigris Coulee, Approximately 18 miles (19 km) east of the village of Milk River, Warner County, Alberta Province, Canada.
Horizon: Upper Milk River Formation.
Biostratigraphy:
Age: Aquilian age, Lower Campanian Stage, Aquilian in age, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material: Isolated right LP4.
Referred material:
UA 5626: Incomplete Right LP4.
UA 5627-5629: Upper P4's.
EATON & CIFELLI, 1988Locality: Kaiparowits Plateau, Utah.
Horizon: Lower Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
FREEMAN, 1979
Locality: 7599, Burnham South is located about 3 km south of Burnham Trading Post, 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:
V 4600: LP4 fragment.
V 4601: UM1 fragment.
V 2453, V4602: UM2.
V2448, 2454, 3162: LM2.
V 2422, 2424, 2426, 2432, 4603: Anterior upper premolars.
Locality: Jacobs Bone Bed, 7592, San Juan County, New Mexico.Horizon: Naashoibito Member, Latest Kirtland Formation.
Biostratigraphy:
Age: Kirtlandian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UALP 15601: LP4 fragment.
UALP 15602: UM2.
UALP 15603, 15604: LM1.
UALP 15605-15608: LM2.
UALP 15609-15615: Anterior upper premolars.
_____________________________________________________________________________________
Species: archibaldi EATON, 2002
Etymology:
Holotype:
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Referred material:
= Mesodma sp. cf. M. archibaldi EATON, & CIFELLI, 2013
Locality: Locality 77, Grand Staircase, Kane County, Utah.
Horizon: Wahweap Formation.
Biostratigraphy:
Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
UMNH VP 1789: LM1.
_____________________________________________________________________________________
Species: minor EATON, 2002
Etymology:
Holotype:
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Referred material:
= Mesodma sp . cf. M. minor EATON, 2006a
Locality: UMNH VP Locality 10 (Paul's Locality), Cedar Canyon, Markagunt Plateau, Iron County, southwestern Utah.
Horizon: Tibbet Canyon Member, Straight Cliffs Formation.
Biostratigraphy:
Age: Upper Turonian Stage or Lower Coniacian Stage, lowest Senonian subepoch, lower Gulf Epoch, Early Late Cretaceous.
Material:
UMNH VP 5111: m1.
UMNH VP 14025: m2.
UMNH VP 5110, 6917, 7486, 14026, 14044: M1s.
UMNH VP 6920, 13671: M2s.
EATON, 2006b
Locality: UMNH VP Loc. 99, Grand Staircase-Escalante National Monument, Garfield County, Utah.
Horizon: John Henry Member, Straight Cliffs Formation.
Biostratigraphy:
Age: Early-Middle Santonian Stage, Senonian subepoch, Middle Gulf Epoch, Middle Cretaceous.
Material:
UMNH 12769: m1.
UMNH 8449: m2.
UMNH 8448: Partial P4.
UMNH 8460: Posterior M1.
UMNH 11616: Posterior M1.
UMNH 12776: M2.
EATON, & CIFELLI, 2013
Locality: UMNH VP 419, Kaiparowits Plateau, Kane County, Southern Utah
Horizon: John Henery Member, Straight Cliffs Formation.
Biostratigraphy:
Age: Late Santonian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
UMNH VP 18019: Rm1.
UMNH VP 19021: Lm1.
Locality: UMNH VP 424, Garfield County, Southern Utah.
Horizon: John Henery Member, Straight Cliffs Formation.
Biostratigraphy:
Age: Late Santonian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
UMNH VP 14128 (BRCA 7204): Rm1.
UMNH VP 14130 (BRCA 7206): Lm1.
UMNH VP 14253 (BRCA 7261): Rm1.
UMNH VP 14250 (BRCA 7258): Rm1 (posterior half).
UMNH VP 14144 (BRCA 7220): RM1.
UMNH VP 14413 (BRCA 7278): RM1 (posterior half).
UMNH VP 14133 (BRCA 7209): RM1 (posterior part).
UMNH VP 17273 (BRCA 7880): RM1 (posterior part).
UMNH VP 17283 (BRCA 7890): RM1 with posteriormost part missing.
UMNH VP 14135 (BRCA 7211): Deeply worn RM1.
UMNH VP 14125 (BRCA 7201): Deeply worn RM2.
Locality: UMNH VP 823, Kaiparowits Plateau, Kane County, Southern Utah
Horizon: John Henery Member, Straight Cliffs Formation.
Biostratigraphy:
Age: Late Santonian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
UMNH VP 17818: Lm1.
Locality: Locality 61, Grand Staircase, Kane County, Utah.
Horizon: Wahweap Formation.
Biostratigraphy:
Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
UMNH VP 6794: Rm1.
= Mesodma sp. cf. M. minor EATON, GARDNER, KIRKLAND, BRINKMAN, & NYDAM, 2014
Locality: UMNH VP Locality 64, Iron County, Utah.
Horizon: Iron Springs Formation.
Biostratigraphy:
Age: Upper Santonian Stage-Early Campanian Stage, Upper Senonian Sub-epoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UMNH VP 11611: lm2.