the age of the giants Flashcards
(20 cards)
what group diversified after the Permian extinction
diapsids
what marine reptiles had long necks and paddle limbs
plesiosaurs
which marine reptiles were dolphin like and had vertical tails
icthyosaurs
what allowed pterosaurs to fly
elongated 4th finger supporting wing membranes
which pterosaurs were the largest flying animals ever
Quetzalcoatlus
what term described early scientific underestimation of dinosaurs
pre dinosaur renaissance thinking (slow, stupid, lizard like)
who pioneered the “dinosaur renaissance”
robert bakker
what dinosaur had “boomerang skull”
diplocaulus
what major group made up dinosauria
saurischia and ornithischia
which group includes birds
theropods
what are some dinosaur social behaviours
nesting colonies, parental care, communication
which group returned to water in mesozoic
crocodylomorphs and mosasaurs
what did mosasaurs evolve from
terrestrial lizards
what is an example of a herbivorous crocodylomorph
simosuchus
what major extinction allowed mammals to radiate
end cretaceous
what is convergent evolution
independent evolution of similar traits in unrelated groups
what marine adaptation did ichthyosaurs and mosasaurs share
streamlined bodies and paddle limbs
how long did dinosaurs dominate terrestrial ecosystems
160 million years
what kind of fertilisation did crocodylians use
internal
are birds dinosaurs
yes, they are modern theropods
