Results 101 to 110 of about 2,587 (228)

Ontogeny in the tube-crested dinosaur Parasaurolophus (Hadrosauridae) and heterochrony in hadrosaurids [PDF]

, 2013
The tube-crested hadrosaurid dinosaur Parasaurolophus is remarkable for its unusual cranial ornamentation, but little is known about its growth and development, particularly relative to well-documented ontogenetic series for lambeosaurin hadrosaurids ...
Andrew A. Farke, Annisa Herrero, Brandon Scolieri, Derek J. Chok, Sarah Werning   +4 more
core   +1 more source

Hypsilophodon foxii (Reptilia, Ornithischia) en el Cretácico inferior de Igea (La Rioja, España). [PDF]

Munibe Ciencias Naturales, 1994
Se describen restos óseos del dinosaurio ornitópodo Hypsilophodon   foxii, pertenecientes a un único ejemplar hallado en sedimentos   rojos del Cretácico inferior (facies Weald) en la provincia de La   Rioja (N. de España).
TORRES, J.A., VIERA, Luis I.
doaj  

Preliminary observations on the bone histology of the Middle Triassic pseudosuchian archosaur Batrachotomus kupferzellensis reveal fast growth with laminar fibrolamellar bone tissue [PDF]

, 2017
The bone tissue of femur, rib, and gastralia from three different individuals of the Middle Triassic pseudosuchian Batrachotomus kupferzellensis from southern Germany is studied.
Foth, Christian, Klein, Nicole, Schoch, Rainer R.   +2 more
core   +1 more source

First evidence of dinosaurian secondary cartilage in the post-hatching skull of Hypacrosaurus stebingeri (Dinosauria, Ornithischia).

PLoS ONE, 2012
Bone and calcified cartilage can be fossilized and preserved for hundreds of millions of years. While primary cartilage is fairly well studied in extant and fossilized organisms, nothing is known about secondary cartilage in fossils.
Alida M Bailleul, Brian K Hall, John R Horner   +2 more
doaj   +1 more source

The Osteology of Haya griva (Dinosauria: Ornithischia) from the Late Cretaceous of Mongolia [PDF]

, 2021
Daniel E. Barta, Mark A. Norell
openalex   +1 more source

Histological evidence for a supraspinous ligament in sauropod dinosaurs [PDF]

, 2015
Supraspinous ossified rods have been reported in the sacra of some derived sauropod dinosaurs. Although different hypotheses have been proposed to explain the origin ofthis structure, histological evidence has never been provided to support or reject any
Abdalla O, Abdel Meguid EM, Barreto C, Bonaparte JF, Bonaparte JF, Campos D, Casal GA, Casal GA, Cerda IA, Cerda IA, Chinsamy A, Chinsamy-Turan A, Francillon-Vieillot H, García RA, Giménez O, Gomani M, Güner A, Hamdam TA, Hatcher JB, Henderson D, Heylings DJA, Horner JR, Janensch W, Janensch W, Kellner AWA, Mcintosh JS, Morocutti M, Novas FE, Osborn HF, Powell JE, Powell JE, Powell JE, Reid REH, Sandqvist AV, Strocchi R, Yayama T, You H-L, Zhang Y   +37 more
core   +2 more sources

Why sauropods had long necks; and why giraffes have short necks [PDF]

, 2012
The necks of the sauropod dinosaurs reached 15 m in length: six times longer than that of the world record giraffe and five times longer than those of all other terrestrial animals.
Taylor, Michael P., Wedel, Mathew J.
core   +4 more sources

Craniofacial ontogeny in centrosaurine dinosaurs (Ornithischia: Ceratopsidae): taxonomic and behavioral implications [PDF]

, 1997
Scott D. Sampson, Michael J. Ryan, Darren H. Tanke   +2 more
openalex   +1 more source

Mathematical Model of the Mechanics and Dynamics of the Tails in Dinosaurs [PDF]

, 2005
In this paper, we investigate the effect of tails in the locomotion of dinosaurs. We begin with a survey of physical data for both bipedal and quadrupedal dinosaurs.
Bohun, C. Sean
core  

On Asian ornithopods (Dinosauria: Ornithischia). 3. A new species of iguanodontid dinosaur [PDF]

, 1998
D. B. Norman
openalex   +1 more source