Results 31 to 40 of about 174 (116)

Scatter plots showing Chasmosaurus postorbital horncore size over skull size.

, 2016
Horncore length and basal circumference (parameters 1 and 4, Fig 2, respectively) used as proxies for horncore size; rostral-to-epijugal length and squamosal length (parameters 16 and 19, Fig 2, respectively) used as proxies for skull size.
Michael J. Ryan (326037), Claudia J. Schröder-Adams (839086), Robert B. Holmes (728268), James A. Campbell (842116)   +3 more
core   +1 more source

Ontogenetic changes in epijugal of Chasmosaurus.

, 2016
Articulation of epijugal with jugal and quadratojugal (character 11): (A) epijugal disarticulated (UALVP 40), (B) epijugal articulated with open suture (ROM 839) and (C) epijugal articulated with closed suture (TMP 1981.019.0175).
Michael J. Ryan (326037), Claudia J. Schröder-Adams (839086), Robert B. Holmes (728268), James A. Campbell (842116)   +3 more
core   +1 more source

Specimen-based phylogenetic analysis of Chasmosaurus and Vagaceratops specimens, using 153 cranial and postcranial characters.

, 2016
Strict consensus trees of: (A) Chasmosaurus, Vagaceratops, and other taxa included in Campbell [22] (5410 most parsimonious trees, tree length (TL) = 293 steps, consistency index (CI) = 0.61, retention index (RI) = 0.76); (B) same taxa as ‘A’, but ...
Michael J. Ryan (326037), Claudia J. Schröder-Adams (839086), Robert B. Holmes (728268), James A. Campbell (842116)   +3 more
core   +1 more source

Notes on Ceratopsians at the Canadian Museum of Nature

, 2013
As part of my dissertation research and general research program focused on horned dinosaurs, I traveled to the Canadian Museum of Nature (CMN [formerly NMC], Ottawa, Ontario, Canada) in the winter of 2008 for a few days of research.
Andrew Farke (97445)
core   +1 more source

Convergent evolution of quadrupedality in ornithischian dinosaurs was achieved through disparate forelimb muscle mechanics. [PDF]

Proc Biol Sci, 2023
Dempsey M, Maidment SCR, Hedrick BP, Bates KT.   +3 more
europepmc   +1 more source

The exquisitely preserved integument of Psittacosaurus and the scaly skin of ceratopsian dinosaurs. [PDF]

Commun Biol, 2022
Bell PR, Hendrickx C, Pittman M, Kaye TG, Mayr G.   +4 more
europepmc   +1 more source

On Gryposaurus xotabilis, a New Genus and Species of Trachodont Dinosaur From The Belly River Formation of Alberta, With a Description of The Skull of Chasmosaurus belli

, 1914
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

014-02: Skull of the Chasmosaurus Belli

, 1913
This black and white photograph depicts the skull of the Chasmosaurus belli embedded in the rocks. The sedimentary layers of the outcrop are visible in the photo, with some layers being darker than others.
Sternberg, George Fryer, 1883-1969
core  

Mojoceratops perifania, a new chasmosaurine ceratopsid from the late Campanian of Western Canada

, 2010
A new genus of long-horned chasmosaurine ceratopsid is described from the Dinosaur Park Formation (upper Campanian) of Western Canada. Mojoceratops perifania is represented by a skull and a parietal from the Dinosaur Park Formation of Alberta and an ...
Nicholas R. Longrich
core   +1 more source

A ceratopsian bone bed from the Aguja Formation (Upper Cretaceous) Big Bend National Park, Texas

, 1982
The Upper Cretaceous Aguja Formation, exposed in the Big Bend region of southwest Texas, consists of prodeltaic, deltaic, and fluvial sediments, which were deposited during the final regression of the western interior epeiric seaway.
Lehman, Thomas Mark
core   +1 more source