Results 81 to 90 of about 557 (139)

Lateral tracheal and esophageal displacement in Avialae and morphological implications for theropoda (Dinosauria : Saurischia) [PDF]

open access: yes, 2015
This research examines the evolution, phylogenetic distribution, and functional explanations for a peculiar and often overlooked character seen in birds, herein called tracheal and esophageal displacement.
Klingler, Jeremy Joseph
core   +1 more source

A New Troodontid Dinosaur from the Lower Cretaceous Yixian Formation of Liaoning Province, China [PDF]

open access: yes, 2017
Agnolin   +62 more
core   +1 more source

The Dinosauria: Baraminological and Multivariate Patterns [PDF]

open access: yes, 2018
The Dinosauria pose both interesting and challenging questions for creationist systematists. One question is whether new dinosaur discoveries are closing morphospatial gaps between dinosaurian groups, revealing continuous morphological fossil series ...
Doran, Neal A.   +3 more
core   +1 more source

Revealing patterns of homoplasy in discrete phylogenetic datasets with a cross-comparable index [PDF]

open access: yes
Investigating patterns of homoplasy can improve our understanding of macroevolutionary processes by revealing evolutionary constraints on morphology and highlighting convergent form–function relationships.

core   +1 more source

Dromaeosaurid skeleton II [PDF]

open access: yes, 1999
45 p. : ill., map ; 26 cm.Includes bibliographical references (p. 40-43).The postcranial anatomy of several new specimens of Velociraptor mongoliensis is described.
Makovicky, Peter J.   +3 more
core  

Revision of the Deinonychosauria (Dinosauria, Theropoda) from Argentina: anatomy and phylogeny [PDF]

open access: yes, 2014
Deinonychosauria es un grupo de dinosaurios terópodos celurosaurios, con un dígito pedal II concapacidad de hiperextensión, entre otros rasgos. Los registros son mayormente del hemisferionorte, aunque también existen registros del hemisferio sur.
Gianechini, Federico Abel
core  

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