LOCALITY:
Eggs from Khermin Tsav, Gobi Desert, Mongolia
AGE:
Late Cretaceous (Santonian-Campanian), 75-85 million
years old
SIZE:
Small sparrow-sized
MEANING OF NAME:
'Gobi-winged'
PRONUNCIATION:
Gobe-IP-ter-ix
CLASSIFICATION:
AVES (birds): Gobipterygiformes; Gobipterygidae
One of the most ancient of birds, Gobipteryx
is known from two crushed skulls and lower jaws from
Mongolia. In addition to this there are some embryonic
skeletons and eggs (on display in the exhibition) that
have been called Gobipteryx, but these may, in
fact, belong to another equally ancient group of birds
called the Enantiornithiformes.
At the time that Gobipteryx
lived, birds were just beginning to develop into the
groups we know today. Birds as a group were derived from
small carnivorous lizardhipped dinosaurs (saurischians).
The oldest vertebrate that has been called a bird is the
first vertebrate with feathers, Archaeopteryx,
from the Late Jurassic of Germany during the end of the Age
of Dinosaurs, primitive birds experimented with many
different lifestyles, and it wasn't until the early
stages of the Cainozoic, the Age of Mammals (beginning at
65 million years ago), that the broad outlines of modern
groupings of birds could be seen.
Gobipteryx still has many
reptilian characters, for example one of the bones of the
jaw, the quadrate, resembles bones in theropod dinosaurs.
But Gobipteryx also had bird-like features too.
Many palaeontologists view Gobipteryx
and a number of other Cretaceous birds as early
experiments in 'birddom' that didn't give rise to any
later birds, but tried out the avian lifestyle until
crowded out by better 'models' which in turn did give
rise to our modern birds.
Gobipteryx would have had
feathers and probably would have been able to fly.
Small eggs are those thought to belong
to Gobipteryx;
Large egg is that of a hadrosaur (from Gureelin Tsav,
Southern Mongolia).
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