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Dinosaurs of the Air: The Evolution and
the Loss of Flight in Dinosaurs and Birds
This text presents the most
recent work of evolutionary scientist and dinosaur
illustrator, Gregory Paul. It synthesizes the
growing body of evidence which suggests that
modern-day birds have evolved from theropod
dinosaurs of prehistoric times. Paul argues
provocatively for the idea that the ancestor-descendant
relationship between the dinosaurs and birds
can on occasion be reversed, and that many dinosaurs
were secondarily flightless descendants of creatures
we would regard as birds. The book also offers
firsthand interpretations of major fossils;
a balanced discussion of the ways we think flight
may have evolved (comparing "ground up"
and "trees down" scenarios); a close
look at the famous urvogel Archaeopteryx, discussing
what it can and cannot tell us about bird origins;
and in-depth analyses of bird and theropod phylogenetics.
Full of detail for the specialist but accessible
to the intelligent lay reader, the book includes
the author's own illustrations and a technical
appendix which provides information, for example,
on body mass/wing dimension relationships and
avian/dinosaurian metabolics. |
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Mesozoic Birds: Above
the Heads of Dinosaurs
Assembling work by an international
group of scientists, this text provides a
wide-ranging source on early avian evolution.
It provides a comprehensive examination of
the known fossil record and is also a guide
to the fast-paced developments in research.
The text covers a wide range of topics, including
discussions of avian origins, the fossil record
of feathers and footprints, bone histology,
and locomotor evolution. Controversial taxa
such as Protoavis, Caudipteryx, and Mononykus
receive special treatment. But the heart of
the volume presents the anatomy, relationships,
and paleobiology of the Mesozoic aviary. The
book features descriptions and illustrations
of taxa that previously have received only
brief notice, such as the alvarezsaurid Shuvuuia;
the enantiornithines Sinornis; Eoalulvis,
Vorona, and Patagopteryx; and the hesperornithiform
Enaliornis. |