[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
New MANIAC book is out!
MANIAC famously means "Maniraptorans Are Not In Actuality Coelurosaurs",
and that's what this new book seems to say:
David Burnham (2 February 2010): Maniraptoran "Dinosaurs":
Paleoenvironment, Paleoecology, and Evolution. VDM ( = Verlag Dr.
Müller). Paperback, 128 pp.
Yes, scare quotes in the title. Yes, a German publisher.
The "short description" by amazon.de, which is probably the blurb
supplied by the author:
Maniraptora includes the first known bird, Archaeopteryx, the small,
four-winged, feathered glider, Microraptor, and the terrestrial runner
Bambiraptor. All are considered important links in the origin of flight
and a subsequent transition to terrestriality. In cladistic
classifications, dromaeosaurid ?dinosaurs? were only considered
terrestrial cursors. The discovery of a gliding stage within the
dromaeosaurs confounds the currently suggested evolutionary framework
and lacks predictability for origin of flight scenarios. Paleoclimate
was a significant factor for evolution of dinosaur-like birds and
birdlike dinosaurs during the Mesozoic. This time is characterized by
faunal and floral changes reflecting the cooling trend at end of the
Cretaceous. The environment opened up making it difficult for poor
fliers and gliders as forested areas became less dense. Secondarily
flightless terrestrial forms and birds with full flight capabilities
survived best in these new environments. Eventually, birds of modern
aspect probably replaced the primitive maniraptorans since they were
more efficient fliers and had evolved higher metabolic rates suitable
for the cooler climate.
The question marks around "dinosaurs" are in the original and must have
been formatted scare quotes. Lack of italics also in the original.
Looks fractally wrong to me. Cooling trend? The evidence for polar ice
is from the Aptian and Albian, isn't it? There's none from the Campanian
or Maastrichtian, AFAIK.