Sp

DUARTE-BIGURRA, VICENTE, GUTIERREZ-BLANCO, SERRANO-BRANAS, WAGNER & PRIETO-MARQUEZ, 2026

Locality: Puerto Viejo, 1 km east from Fedral Highway 17, 30°53'21"N, 109°32'43"W, Fronteras municipality, nroth-eastern Sonora State, north-western Mexico.

Horizon: Fronteras section, Cabullona Group.

Biostratigraphy:

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

Material:

2997 PM 1: 4 cervical, 14 dorsal, and 1 caudal vertebrae, 1 cervical and 13 dorsal ribs, variosu fragmetns of neural spines, ribs, vertebrae, a left ilium, both pubes, both ischia, medial condyle of the right femur, lateral condyle of the left femur, and distal end of a right tibia.

Locality: Arroyo del Alamito, 30°53'21"N, 109°32'49"W, Fronteras municipality, nroth-eastern Sonora State, north-western Mexico.

Horizon: Fronteras section, Cabullona Group.

Biostratigraphy:

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

Material:

2997 PM 6 : 4 dorsal vertebrae, a patial sacrum 6 neural spiens 8 dorsal ribs, a partial right ilium adn several unidentified bone fragments.

1997 PM 6 (2434): a partial right ischium adn various unidentified fragments.

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HORTON, 2006

Locality: "West Tornillo Pasture," Brewster County, Texas.

Horion: Aguja Formation.

Biostratigraphy:

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

Material:

Number: Not given: Fragmentary neural arches and caudal centra.

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= Kritosaurus sp FIORILLO, 1989 (Note placed in Kirtosaurini indeterminate by PRIETO-MARQUEZ & GUTARRA, 2016).

Locality: Careless Creek Quarry, Wheatland County, Montana.

Horizon: Judith River Formation.

Biostratigraphy:

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

Material:

Number: Not given:

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WOSIK, & GUETHER, 2016

Locality: Unknown, San Juan Basin, New Mexico.

Horizon: Hunte rWash Member, Kirtland Formation.

Biostratigraphy:

Age: Kirtlandian, Late Campanian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

FMNH PR 2248: Right dentary.

FMNH PR 1203a, 1203b, PR 1252: Right jugal.

FMNH PR 1300, 1301: Right humeri.

FMNH PR 1202: Left pubis.

FMNH PR 1290: Left pubis.