Explore the evolution of bird wings in this Royal Tyrrell Museum Speaker Series talk by Dr. François Therrien, Curator of Dinosaur Palaeoecology. Delve into the discovery of feathered ornithomimids from Alberta and their implications for understanding wing origins. Learn about the historical context of dinosaur feather discoveries, the changing perceptions of dinosaur appearances, and the phylogenetic distribution of feathers. Examine various hypotheses for wing and flight evolution, and investigate the first North American feathered dinosaur findings. Analyze the arrangement of feathers in modern birds and ornithomimids, considering the age of wing development and potential functions. Gain insights into the origin of wings and draw conclusions about this fascinating aspect of dinosaur and bird evolution.
How Did Birds Get Their Wings? Feathered Ornithomimids from Alberta and the Origin of Wings
Royal Tyrrell Museum of Palaeontology via YouTube
Overview
Syllabus
Intro
FIRST HALF OF 19th CENTURY
SECOND HALF OF 19 CENTURY
DISCOVERY OF FIRST FEATHERED DINOSAURS IN 1998
THE OLD LOOK OF VELOCIRAPTOR
EVIDENCE OF FEATHERS IN VELOCIRAPTOR
THE NEW LOOK OF VELOCIRAPTOR
VELOCIRAPTOR LOOKED LIKE AN ANGRY BIRD
PHYLOGENETIC DISTRIBUTION OF FEATHERS IN DINOSAURS
TYPES OF FEATHERS FOUND IN DINOSAURS
FUNCTION OF SHAFTED FEATHERS
HYPOTHESES FOR THE EVOLUTION OF WINGS AND FLIGHT
WHY DID WINGS FIRST EVOLVE?
GEOGRAPHIC OCCURRENCES OF DINOSAURS WITH FEATHER IMPRESSIONS (PRE-2012)
DISCOVERY OF THE FIRST FEATHERED DINOSAURS IN NORTH AMERICA
FIRST FEATHERED DINOSAURS FROM NORTH AMERICA
THREE FEATHERED ORNITHOMIMIDS
ARRANGEMENT OF COVERT FEATHERS ON THE WINGS OF MODERN BIRDS
CALAMUS IS A HOLLOW STRUCTURE
IS THERE EVIDENCE FOR THE PRESENCE OF SHAFTED FEATHERS IN JUVENILE ORNITHOMIMIDS?
AGE OF WING DEVELOPMENT
SECONDARY SEXUAL CHARACTERISTICS
WING FUNCTION IN ORNITHOMIMIDS
ORIGIN OF WINGS
CONCLUSIONS
Taught by
Royal Tyrrell Museum of Palaeontology
