Genus: Brachylophosaurus STERNBEG, 1953
Etymology: Greek, brachys, “short”, Greek, lophos, “crest”, and Greek, sauros, “lizard”: “short crested lizard”.
= Brachylosaurus CZERKAS & CZERKAS, 1990 (sic)

Species: canadensis STERNBERG, 1953
Etymology: In reference to the country of Canada.

Holotype: CMN (NMC) 8893

Locality: Quarry 103, Little Sandhill Creek, NE 1/4, sec. 6, T21, R11, W of 4th mer., 60 feet above Red Deer River, Dinosaur Provincial Park, Newell County, Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.
Note: Not in the Dinosaur Park Formation.

Biostratigraphy:

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

Material: Skull, mandible, Cervical and anterior dorsal vertebrae, ribs, scapulae, coracoid, humeri, left ulna and radius.

Referred material:

 

CLELAND, SCHROETER, ZAMDBORG, ZHENG, JI, TRAN, BERN, DUNCAN, LEBLEU, AHLF, THOMAS, KALLURI, KELLEHER, & SCHWEITZER, 2015

Locality:

Horizon:

Biostratigraphy:

Age:

Mateiral:

MOR: 2598:

Note: Blood vessels, and proteins.

HORNER, 1992

Locality: Red Deer River Area, north of Medicine Hat, Dinosaur Provincial Park (50.45 N; 111.30 W), 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:

FMNH PR 862 : A partial skull roof with associated jugals, dentaries, pterygoid, nasals, right surangular, angulars and left quadrate.

 

CARROLL, 2002, PERKINS, 2002, MURPHY & TREXLER, 2002

Locality: Northern Phillips County, Montana.

Horizon: Lower Judith River Formation.
Note: Equivalent to the Oldman Formation, middle Judith River Group.

Biostratigraphy:

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

Material:

Philipps County Museum, JRF 115 (old PCM115-H) (“Leonardo”): Nearly complete specimen.
Note: Skin impressions, muscle impressions and possible stomach contents.

TWEET, CHIN, BRAMAN & MURPHY, 2008

JRF 115H: A nearly complete subadult specimen. Missing the middle and distal end of the tail.

Note: Also has stomach contents of plant material.

 

CURRIE, KOPPELHUS & MUHAMMAD, 1995

Locality: Near Manyberries, Forty Mile County, Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.

Biostratigraphy:

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

Material:

RTMP 90.104.1: Skull, and partial skeleton.
Note: An articulated specimen of a sturgeon was found in the rib cage. The sturgeon wasn’t eaten, but died inside the skeleton.

Top, Skull as is: B0ttom, back of skull corrected.

 

= Brachylophosaurus cf. canadensis MURPHY, CARPENTER, & TREXLER, 2013

Locality: Along the Little Cottonwood drainage, Phillps County, northeastern Montana.

Horizon: Lower Judith River Formation, about 138 feet above the marine Claggett Formation.

Biostratigraphy:

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

Material:

JRF-1002: Dorsals 15-18, sacrals, 1-9, and caudals 1-74, associatd with chevrons, ossified tendons, the ilia, proximal ends of the left and right pubes, iliac peduncle of the left adn right ischia, and proximal ends of the left and right femora.

Note: Has sacral neural spine 8 and 9 has broken and healed bulges, cadual 1 and 2 have some of the dorsal neural spines bitten off.


= Brachylophosaurus goodwini HORNER, 1988
Etymology: Named in honor of Mr. Mark Goodwin, preparator at the Museum of Paleontology, University of California, Berkeley, for his hard work collecting vertebrate specimens and geologic data from the Judith River Formation, Montana.

Holotype: UCMP 130139

Locality: UCMP Locality No. V83125, Canadian Creek, Hill County, Montana.

Horizon: Judith River Formation.
Note: Equivalent to the Oldman Formation, middle Judith River Group.

Biostratigraphy:

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

Material: A partial skull, cervical vertebrae, scapulae, coracoids, sternals humeri and rib fragments.

Brachylophosaurus goodwini (modified from HORNER, 1988), Holotype: UCMP 130139.

Referred material:

PRIETO-MARQUEZ, 2000, 2005

Locality: MOR locality JR-168, about 17 miles north of Malta, Phillips County, Montana.

Horizon: Lower Judith River Formation.
Note: Equivalent to the Oldman Formation, middle Judith River Group.

Biostratigraphy:

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

Material:

MOR 794: Nearly complete specimen lacking only the distal part of tail.

FOWLER, & HORNER, 2016

MOR 720: Braincase.

MOR 940: Braincase.

 

Locality: MOR locality JR-224, Nate’s Hadrosaur Site, about 17 miles north of Malta, Phillips County, Montana.

Horizon: Lower Judith River Formation.
Note: Equivalent to the Oldman Formation, middle Judith River Group.

Biostratigraphy:

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

Material:

MOR 1071: More than 800 subadult and adult specimens from a monospecific bone bed, including distarticulated or patially articulated and/or associated coracoids, scapulae, sternals, ilia, pubes, ischia, cervical, dorsal, sacral and posterior vertebrae, ribs, humeri, radii, ulnae, carpals, metacarpjals, phalanges, femora, tibiae, fibulate, tarsals, metatarsals, pedal phalanges, premaxillae, maxillae, a patial nasal prefrontals, postorbitals, jugals, quadratojugals, quadrates, dentaries, predentary, splenials, surangular, angulars, articulars, pterygoids, ectopterygoids, palatines, frontals, and 2 articulated skull roofs with preserved braincases, plus a disarticulated partial skubadult skull.