PELVIC GIRDLE OF BIRD-REPTILE-MAMMALE-COMPARITIVE ANATOMY

Evolution of pelvic muscle origins on the line to crown-group birds.

Pectoral Girdle In Reptiles,birds and mammals //MSC Zoology//B.SC.Zoology Notes

Comparative Anatomy - Skeletal System

Study Guide for Comparative Vertebrate Anatomy, ZOO 3713, Study notes Zoology

Diversity, Free Full-Text

The Osteology of the Reptiles/Chapter 4 - Wikisource, the free online library

PECTORAL GIRDLE-REPTILE-BIRD-MAMMAL- COMPARATIVE ANATOMY

Modern birds evolved from saurischians, but why do they possess hips similar to those of the relatively unrelated ornithischian dinosaurs? - Quora

Skeleton

Forty new specimens of Ichthyornis provide unprecedented insight into the postcranial morphology of crownward stem group birds [PeerJ]

The Affinity between the Dinosaurian Reptiles and Birds (1870)