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L'origine et l'évolution des oiseaux, with a twist
Everytime you see 'bird' substitute 'pterosaur.'
'Dinosaur / theropod' = 'fenestrasaur.'
'Feathered' = 'hairy'
'dromaeosaurs and troodontids' = 'longisquamids and sharovipterygids'
'Late Jurassic' = 'Mid to Late Triassic'
'over 140' = 'over 200'
'Archaeopteryx' = 'Eudimorphodon'
not sure about brooding and growth...
Ironic on so many levels.
Padian, K., and de Ricqles, A. 2009. L'origine et l'évolution des
35 années de progrès. Comptes Rendus Palevol. doi:
ABSTRACT: Birds are dinosaurs -- specifically, small feathered and
theropod dinosaurs that probably originated in Laurasia during the Late
Jurassic over 140 million years ago. They are most closely related to
small theropods such as dromaeosaurs and troodontids, terrestrial
that were fleet-footed hunters. The origin of birds is a classic
two kinds of macroevolution: the phylogenetic origin of the group,
sequential assembly of adaptations such as flight that are indelibly
associated with birds. These adaptations were not assembled all at once.
Rather, a great many characteristics associated with birds and flight
appeared in non-avian dinosaurs, where they were used for many purposes
other than flight. These included insulation, brooding, and probably
and species recognition. Birds diversified steadily but gradually after
their origin, which is identified with the origin of flight
forelimb and other flight-associated features evolved more rapidly than
features associated with the posterior skeleton. The first birds grew
slowly than extant birds do, and more like other small Mesozoic
like them, they probably matured sexually well before they completed
active skeletal growth. The origin of flight is not a problem of ?trees
down? or ?ground up,? but rather an examination of the order in which
diagnostic flight characters evolved, and what each stage can reveal
the functions and habits of bird outgroups at those evolutionary