BIO 113 — Dinosaurs
Udo Savalli Home
Lab 14
Origin of Birds: Fossil Evidence
Compare the fossils of
Archaeopteryx
(below)
with: the
skeletons
of various archosaurs, including an alligator and several dinosaurs; small coelurosaur
dinosaur fossils (below)
; the extinct bird
Confuciusornis
(below); and
modern birds
Fossil reproductions of two compsognathid dinosaurs
Fossil cast of the compsognathid dinosaur
Compsognathus longipes
See labeled version
Below: Fossil reproduction of the compsognathid dinosaur
Sinosauropteryx prima
, showing preserved protofeathers
Fossils of the Earliest Bird
Archaeopteryx
A cast of the "Berlin specimen" of
Archaeopteryx siemensii
See labeled version
Below: a photograph of the actual "Thermopolis specimen" of
Archaeopteryx
(at the Wyoming Dinosaur Center)
See labeled version
A fossil cast of the primitive mesozoic bird
Confuciusornis
(a female)
See labeled version
This page last updated 1 August 2020 by Udo M. Savalli ()
Images and text © Udo M. Savalli. All rights reserved.